Outboard has spark but wont start

Outboard has spark but wont start

Next, determine for yourself whether a cylinder is dropping: 2 Stroke Outboard Motor Won't Start. the shift interrupt only works when comeing OUT of any ingear position and will cause the engine to misfire briefly. key and kill switch ground the ignition to keep voltage from plugs. Re: Yamaha 115 no spark. I was fixing some cables at the battery and by mistake shorted the + and - cables. Re: Runs Great. Try to start it after letting it sit for a day. The carburetors in your boat engine control the flow of air and fuel to your engine. Replace the fuel lines, tank to motor line, and rebuild and clean the carb with compressed air. 4L 4cyl that will crank all day long but will not start, bought it off of a friend thinking it was a sensor, when she had it it developed a long crank then eventually start now it wont start at all, I have replaced Crankshaft position sensor and both Camshaft Jul 31, 2004 · It should, or you are missing one of the other two components (spark or compression). When the boat engine won’t turn over battery good, it means that there may be a problem with your electrical wires, such as if the starter is not getting the power it needs from the battery. Nov 25, 2012. Agree, follow mark's suggestion. On a motor that will not start, 1st thing to do is check for spark. Battery connections or cables. If your engine isn’t primed, there could be a leak somewhere along the line, in the fuel lines, filters, or even the engine itself. 9 Johnson OB Won't Start. If no manual, then you may have to hook up to computer at dealer. Pull a plug wire off when its not starting up and check for spark with a screw driver, you just stick the screw driver usually a phillips fits nicely, in next to the contact, hold the screw driver 3/8 inch from the engine and crank the engine over, you should see Aug 10, 2010 · Aug 10, 2010. THEN, perform a compression test on the motor to make sure that starting fluid did'nt kill it. If that does check out good, lets move on to fuel. Take a length of small fuel line and stick one end up to your ear and then listen with the other end. The meter should read 0 ohms or close to it. Sep 5, 2006. 314. If not, you may have problems with the points, condenser or magneto coil. Pull the rope. Connect a Separate Fuel Tank with Brand New Fuel. If the engine is not getting enough fuel, it won’t run properly. Tried a new plug in both plug wires and nothing in either. Spark Plugs. If your boat has a battery switch, make sure it’s set to the ON position. You said you have spark. 9 won't start. I've got a 15hp Johnson that won't start early 1990's. Nothing changed from one day to the next. Clean them or replace them as needed, and ensure they are correctly gapped. At this stage, calling a certified boat mechanic is a solid choice. If not, pour couple of table spoons of fuel down the carb and crank. Apr 20, 2014. Here is what i've done: -replaced ignition switch. Do you have compression, you need to check for even compression in both cylinders with a compression checker. Unscrew input to fuel filter, squeeze primer bulb. Re: Boat will crank but will not start. Compression is there based on my tired arm. Might take a peek under there and make sure the coils are still good. If it still does not start, then it likely was not flooded because after a day of sitting, the excess fuel would have evaporated/drained out. We've tried everything we can think of. Re: Motor Turns over, but won't start. Read on to diagnose and fix your 2-stroke engine’s failure to start. Re: 3. Then we get towed in, and we will go to check it the next day and it starts. The spark plugs essentially light the fire. Your 76' has points and condensers and the coils are under the flywheel. Powerhead hydro-locked. Jul 25, 2017 · 14 posts · Joined 2017. If it is charged enough but still not responding, then discharge it. jimlad. #4. Not too bad a job on one of those. I did raise my remote control "lever" (the single flat piece on the top of my Johnson 90hp remote control box) up to open the choke, and turned the key and pressed in for a few times (5 times) to squirt gas/oil into the cylinders to try to start. Plug and clean the plugs. Sep 2, 2013. Hi guys ,new to the forum here. Update, I finally got around and bought a new spark plug gap tester. Mar 29, 2021 · Carburettor. pablo, hi. I would squirt some premix gas into the carb throat and give the starter cord a pull and see what happens and then I would remove each spark plug and put a teaspoon of premix in the cylinder's and try it again. Purging the bad gas to get it running again. Time to hone and re-ring. Replace any faulty parts. May 7, 2020 · 1996 Johnson/Evinrude 150 (Looper) - turns over, fires, wont run. Feb 11, 2014 · LT1 Cranks, has spark & fuel, no start. We tried spraying starter fluid into the intake - but no-go. You should see a little blue spark as long as you're not in bright sunlight. 9 that has fuel,spark and compression yet won't run. I attached a drill Jun 12, 2023 · Hello all, I’ve been having some trouble with my 2021 8hp Mercury 4 stroke tiller outboard. Dirty, Broken Spark Plugs. That way you'll know you've got spark and fuel. Report the results. You should start to hear it pop, just keep pulling or kicking and holding it wide open until it starts, then rev the engine a bit to clean it out and keep it running, then warm it up properly. See if you can get it to pop a little that way. If you can see dirt accumulation in the fuel tank or filters, flush the fuel system, then refill it with new fuel. Almost wants to go then I end up flooding it . Malfunctioning Fuel Pump. Most outboards won’t start if the motor is in gear. - due to weird 1 1/4 pump nipples, I had weird hoses that had slow drip leaks (bad, I know). pull start only. Pull the plugs, dry the electrodes completely and reinsert. 70 pounds compression on that motor is very low; should be around 120 to 140. If the engine is hard to start, perform the following ignition system tests to determine the cause and solution to the problem. Many interruptions. When you back down the ramp, turn the key, and nothing happens, it's a problem. mercruiser, cranks but won't start - no spark? Confirm the accelerator pump in the carb is squirting fuel by looking down the throat of the carb and pump it couple of times. The simplest things that would prevent an engine from starting can be easily overlooked, but start with the obvious first. I’ll stop to fish and I’ll shut my motor off and I’ll continue doing this as I Dec 10, 2005 · Re: Johnson 25hp won't start. Spark plugs improperly gapped, dirty or broken 12. Oct 6, 2016 · When you feel compression stick a screwdriver in the spark plkug hole and slowly turn the crank until the piston is all the way up. Few things are more frustrating than getting everything ready for a much-anticipated stint of fishing or boating, only to discover that your outboard motor won’t start. This will narrow the system diagnostic. No Fuel. #16. Have had it 3 years and no issues. If your outboard has a spark but won’t start, there are several troubleshooting tests you can run to find the answer to the starting problems happening with your motor. Pull a spark plug, keep it attached to the wire, hold the end against a cooling fin and pull the cord. Choke lever in the wrong position. 481. Time to check the spark. 8 Wont start . "We have owned the boat for a. With doing the conversion it stoped running. Jan 20, 2011 · Jan 19, 2011. 11. Jun 24, 2004 · 85. If you experience trouble starting the engine, engine hesitation, loss of power, or decreased acceleration, you may have failing spark plugs. Jun 24, 2004. May 11, 2011 · May 11, 2011. I’ll look at how to address each of these issues and get your 2-stroke engine running again. I have cleaned the carburetor checked to see if everything was alright on which it was I did however changed the primer bulb, checked the fuel filter which was good and I also changed the Seloniod, rectifier, coils, everything Sep 21, 2012 · Pull the coils and sand the base to good alumninum and clean the ground wire on the base of the coil and see if you get even spark on both plugs. I've fished my whole life, and finally have a boat of my own. I have a 2006 mercury 60 hp 4 stroke that has an intermittent no start. Check the Oil Level or Fill the Oil Injection Tank. Inadequate fuel supply is a common issue, either from pinched hoses or a lack of fuel in the gas tank (s). I feel like it could be a timing issue . Low or disconnected battery. Mar 16, 2015 · 3. Sometimes it won't start at all. After wiring it up (shbox. It won't start. Pump the primer bulb (if equipped) and ensure it gets firm after several squeezes. If they come out dry you have a clogged carburetor. Carburetor issues. Re: 1993 25 hp mercury runs but then stalls and won't start. Turn off the fuel tap, then open the drain screw on the side of the carburettor and drain into a bucket. Hello everyone, first time posting here. With bad rings, the exhaust blows by to pollute the intake charge, which keeps it from starting. Jul 6, 2010 · 28. first, was the motor previously running, how long ago. Gear shift not in neutral. This video will detail the May 29, 2010 · 540. I took the carb off and cleaned that, the plugs were sparking, and fuel was in the combustion chamber. Installed a new battery as the starting battery on the port side was bad. Re: 140 hp Evinrude won't start. 9 Won't start. Ok guys, new to the forums and about equally new to boating. Mar 16, 2015. and i have read the top secret file and it helped alot but i did everything it said and she still wont idle or run with out dying. Connect a multimeter to each end of the plug wire, then set it to ohms and hold the wire taut and straight. 3) compression. Without them, your fuel won’t combust. May 28, 2010. CARBURETOR ADJUSTMENTS TOO LEAN. My Mercury 2001 200 hp Efi won't fire. Battery switch is off. After all, having the freedom to get out on the water whenever the mood strikes is one of the main reasons most people purchase a boat. Doesn't appear to have any spark. Messages. Oct 3, 2023 · How to fix: Replace the starter. Removed a valve cover to verify valves were opening and closing. Re: Mercury 4hp wont start, fuel problem. Tangled Propeller. Aug 25, 2007 · New member. If you bypassed kill switch it sounds like you grounded the wire. use a spark gap tester you want the spark to jump a gap of at least 3/8 inch brite blue snap. com is an awesome resource), it cranked right away. When trying to start the engine-you normally choke it and raise the fast idle lever on the control box. <br /><br />c/6<br /><br />Hooty Mar 24, 2024 · 1. Mercury 20 HP 4-stroke owners often experience fuel pump issues. 4. February 23, 2014. Disconnect the Fuel Line From the Boat & Check the Condition of the Fuel. However today, it just cranked, but not hint of popping off. Most outboards won't start unless the shifter is in neutral. Ive been stumped on why it wont run for days. Not 100% sure how to Verify it . F115 four stroke cranks, but won't fire. Oct 2, 2014 · 10-03-2014, 01:05 PM. Or, it would be, if you hadn't seen this video on basic troubleshooting when your outboards won't start. I don't think your issue is going to be with the battery as you were able to crank the boat. 4) When the engine starts release the key. Dec 27, 2015. Check to see that fuel is getting to the engine. Bought the boat knowing it has motor problems. Re: 1974 Johnson 9. Reinstall the plugs. So the cold starting process is as follows. I've checked gas and its good. They can also get broken, which may call for a replacement. This video is a quick overview of all the things to lo Dec 16, 2013 · 1,356. Connect To a Fully Charged Battery. Timing and synchronizing out of adjustment 10. Make sure that there’s no water in the fuel lines. Aug 2, 2019 · Drain the water and change your fuel filter. ive checked everythin including cleaning the carb several times, but i think the carb kit im ordering tonight will fix it. All pretty cheap. Check the engine’s cylinders for water. I tried spraying starter in the air Jul 11, 2018 · It has electric start and it only cranks without starting. If the battery is damaged, replace it. If ok then check for fuel by pulling of a fuel at the carburator or fuel injector rail if equipped. "We have owned the boat for a couple of years. P. Air leaks in the engine. Feb 27, 2014 · ECM. You dont want that junk in the lines to drain into the carb you just cleaned. When it doesn't start at all, it has no spark. I replaced the carburetor with a new one; I replaced the oil and oil filter. 1. The battery might have gone flat if the motor doesn’t start completely. If it doesn't, check for leaks in the line, the tank or filter, the engine, and a bad valve within the bulb. instead of pulling like crazy I've taken the pull start off and spin the flywheel with a drill and socket. you'll want to make sure the spark is jumping at least a 7/16" gap with a hot lighting like spark. If your Mercury 4-stroke outboard engine is difficult to start or won’t start at all, a variety of factors might be responsible. Eula. I'm new to the forum and did some searching and couldn't find my exact issue so figured it best to start a thread. May 22, 2016 · 6. First I cleaned out the carb and switched out the spark plugs. Re: Merc 9. Examine the spark plug (s) for wear, corrosion or damage. sparks all 6 at cranking speed and below 600. #5. Test the ignition system, including the ignition coil and control module. Engine Will Not Start or Hard Starting. May 29, 2011 · Jun 6, 2011. Because your Suzuki outboard won’t start in gear, ensure the engine is in neutral. Hope this Oct 22, 2013 · Once the motor is turning when you pull the cord, put fresh gas in the tank and try again. But then as i was remodeling my boat (1973 13ft Boston whaler) turning it from a tiller outboard into a remote steering and throttle. Sep 21, 2003. My 2002 200 HPDI decided not to start today. Apr 22, 2010 · Re: Sears Gamefisher 7. Perform a visual inspection in the Sep 21, 2003 · 430. I took it out twice this year and it ran like a champ:D. 9 outboard. Have to agree gumed up float or bowl If you pump the bulb and it gets hard and no gas in the carb then take it apart get spray carb cleaner if not rebuild the whole carb even better. Disconnect the black (negative) cable, followed by the red (positive). Jan 6, 2014. A couple of weeks ago I was out running and probably was a good 3 hours into the day, engine start hesitating on acceleration. The second time i took it out i met up with my dad who was night fishing, tied up to him and stayed on his boat. Hasn't been started since last summer. #2. Jun 23, 2020 · Unhook the fuel line to the manifols and to the carbs and run fresh fuel / cleaner mix. just rebuilt it over the winter, the engine won’t start . The oil fouled plugs need to be replaced, or at least cleaned and dried. That didn't seem to have an effect, it still wouldn't start. Problem #4: Fuel Pump Issues. Jun 13, 2024 · Answer: The most common problems for a crank-no-start condition are related to the ignition and fuel systems. 3. Ensure cable connections are clean of corrosion. Jun 28, 2021 · 11. - installed new optispark, waterpump and starter but didn't do timing or other gaskets. Double-check that the motor hasn't been left in gear by moving the shifter in and out of gear a couple of times Feb 2, 2024 · Give the primer bulb a few squeeze and see if it becomes hard — meaning the system is correctly pressurized. If you have a picture of the location, that would be very helpful. through this I've found that every once in a while I'll hear a pop and see a poof of smoke from both the Apr 22, 2010 · Re: Has spark and clean fuel, wont start sorry guys, i meant to put it in my last post, its a 1979. Pull the plug, attach the plug wire, then ground the plug threads on the head. Jun 26, 2003 · Re: Spark, but no start, 77' 115hp Evinrude Try the ole "squirt bottle of premix" trick. If your engine doesn’t turn over and only produces a low cranking sound, the chances are that the battery is low or disconnected. #11. I disconnected the main plug from the engine to the rest of the Apr 6, 2022 · No spark. It might be time for an overhaul. Jun 3, 2015 · Member. No spark, not running. Jul 26, 2013 · Jul 25, 2013. I think that the shift position only cuts out the starter selinoid so it won't start in gear on electric start motors. 2) Raise the fast idle lever 1/2 - 2/3. If no codes are showing, then probably have a problem with magneto, or the timing coil, both located under the flywheel. Ive replaced the fuse on the right side of the engine but that didn't work. 07-14-2020, 11:46 PM. If your outboard motor will not throttle up, the issue may be as simple as a tangle. We removed the fuel filter and noticed it had very little fuel in it Feb 17, 2021 · To test the solenoid, follow these steps. Re: 1985 evinrude 9. If it does then look into the fuel bowls on the carbs, if it doesn't, double check the compression with a gauge (looking for anything readings that are similar and above 90 lbs), and then start checking electrical components with the service manual. I have a 2006 Accord EX K24 motor 2. Check the Condition of the Gear Lube. In this video I show the way I approach and outboard that is turning over (cranking) but not starting. You should have a nice bright spark at the spark plug gap. Sep 16, 2012 · I got an outboard which has been sitting in a shed for about 4 years and decided to use it on my boat. This time, it will not at all. Jul 6, 2010. I have a 1995 bass tracker 25hp mercury tracker 2 stroke cycle and it will crank but never start. It's been about a year since I pulled it out of the shed (it's been quite a year), and I did my standard test-crank prior to taking to the landing. If your boat has an emergency shutoff switch, check that the cap is firmly in place or the engine might not start. pull a plug and ground it or get a tester to check for spark, check inside distributor cap for corrosion or moisture. Jul 2, 2010. Manual choke linkage bent — auto choke out of adjustment 11. That's probably it. After a few hours I left headed back to the ramp, and loaded Jul 3, 2023 · Help with Yamaha 150 no spark and engine identification. However no matter how many times i tried to pull it it did not start. Carburetor adjustments too lean (not allowing enough fuel to start engine) 9. Now it wont start (no spark at any of the cylinders). I run this as my kicker, it gets wet all the time. -bypassed neutral start switch by putting a jumper in the connector. We could of just used it 2 hours previous and it started fine. Bad Spark Plugs. Nov 17, 2012 · 11,551. You’ll then need to remove the battery from its housing. Sometimes it will start and run fine. Mar 30, 2012 · 1. Over time, spark plugs can become dirty, dampening their performance. Jun 24, 2021 · Faulty Impeller. To fix this issue, replace the thermostat with a new one. Fortunately, these later models do not have the Jun 28, 2010 · To run, it must have 3 simple ingredients: 1) Spark, 2) fuel, and. Advertisement. Motor was running great. If you already checked the spark plugs on your outboard, test the plug wires to make sure they’re also working properly. Apr 21, 2014 · the CDI wont drop spark on all 6 for any reason. Remove the Spark Plugs & Oil The Cylinders, Replace Plugs if Needed. From simple stuff to more advanced diagnostic testing, here are some ways to troubleshoot the ignition system of your outboard. The alternator charges the battery and powers the boat's electrical system while the engine is running. The motor pees strong and runs exceptionally. 2. May 11, 2019 · May 10, 2019. #1 · Jul 25, 2017. Jun 25, 2012 · I have a 105 Chrysler that is getting good spark, Is 100% in time, Is getting fuel but will only pop once every so often and not run. Jul 9, 2015 · Jul 10, 2015. If you haven't already, download trouble codes, even if the check engine light is not on. Not even a sputter. Coil (in case it was weak spark) Cap and rotor. Re: 9. Apr 5, 2023. Feb 21, 2017 · Hard to start trick for my 2 cycle Johnson 90 HP - My motor has been hard to start in 2016 when cold. Jul 14, 2020 · Tweet. might check compression to make sure the valves are moving. However, like any mechanical device, they can occasionally encounter issues and require troubleshooting. Re: 15 hp evinrude won"t start. <br /><br />Setting so long, it would be real advisable to take the Dec 27, 2015 · New member. I realize I shouldn't use starting fluid, but I need to give it a quick shot to see if it's a fuel issue like I suspect it most likely is. Whenever I’m going out in the morning to fish, my engine will crank first pull. I have a 2014 9. Squirt the premix in the carbs while trying to start. 1,220. Unscrew carbs drain screw just enough for a drip, squeeze primer bulb. Hit the choke and pull like mad. Set the compressor for 30psi and put the compression test fitting in the plug hole and apply air pressure. All of my dash lts and horn and stuff work. Jul 2, 2010 · Messages. 10. No pinched hoses, fuel filter is clean, primer ball pumps up, 1/4 Apr 20, 2014 · Sep 21, 2010. F40 has very small jets and passages, probably plugged up. The fuel bulb is hard, and I have fuel in the carb bowl. I've bypassed my kill switch. thanks guys . The spark plugs aren't getting any fire and aren't arching. I have a 15hp Mercury 2stroke serial number 0C114512. I'm away on vacation, so most of my tools are not with me to do compression check or pulling flywheel. You said you added fuel (starting fluid) So, you need to check your compression. A. Change out ignition switch and changed battery Jul 21, 2013 · 8,934. Open the throttle and shoot some ether into the carb, then quickly close the throttle. If coil is good and spark plugs ok it would be your ht leads but you need to give more correct info. OK, back Steve. No air. Next, bend the wires and see if the reading changes. 1) Squeeze primer bulb until firm. Have you took each sparkplug out and held it against the outboard crank engine and if you see a good spark all is well. First check ignition and fuel, make sure you are getting both. was inconsistent so ruled out as maybe Jun 23, 2023 · When I went to start the motor this time, I made sure to pull the cord as fast & hard as I possibly could. Re: 20hp mercury tiller, won't start. carb sprayed passage ways to verify, etc the plastic cam roller that opens the throttle was broken, that was replaced, took the front part of the fuel pump off, diaphram and all Jan 21, 2017 · Outboard cranks slowly but will not fire up. Where would I spray the fluid to get the best chance of starting the motor. Debris such as fishing line, excessive seaweed, beer can rings, or nearly any other material can wrap around the propeller and its spindle. This year it seems that sometimes we go to start it up and it wont. Anyway, when I go to start it, it cranks Jan 22, 2017 · The Johnson outboard’s ignition system is the system that produces the spark to ignite the mixture of air and fuel and includes the spark plugs, battery, ignition coil and other switches and wiring. already took carb off and thuroughly cleaned, visually checked all jets. Got a great deal, so that didn't matter. Hey I have a 1984 70 hp Evinrude , cim. Pull the handle a few times. Use a voltmeter to check the battery’s voltage. If the engine still doesn’t run, you may need to clean the carb out, either with a can of carb cleaner, or at a workshop Apr 25, 2023 · If the thermostat is stuck closed, it won’t allow coolant to flow through the engine, which can cause it to overheat. Loose or obstructed connections. If the start motor isn’t starting at all, you likely have an electrical issue on your hands. Like. Feb 29, 2016 · You raise that lever 1/2 to 2/3 of its travel which allows the engine to idle a little faster during warm up. 4-stroke outboard that won't start. And the old sparkplugs looked fine . But instead of the shotgun approach, why not troubleshoot logically, one step at a time: First, compression test. Might find the wire at CDI and disconnect to see if spark comes back, that will eliminate the harness and 2 switches. First, check the battery state and make sure it is charged enough to start the engine. 9/15 will give you fits for sure and is one of the hardest engines to start in that case if its a rope start only. Tried to start it today and nothing. May 19, 2021 · What do you check if your outboard has a spark but won’t start? In this installment of our series on your outboard ignition system, we’re going to guide you through some of the things Jul 9, 2015 · Set the spark tester for 7/16" inch and see if you get a good blue spark and a loud snap as it fires. Wire connections may also need to be checked and cleaned. When 2 stroke engine troubleshooting and the engine is flooded, you want to spin the engine over fast with the throttle wide open several times. Removed fuel rail to verify spray pattern and operation. After cranking in this fashion for 20 seconds, pull a couple of spark plugs. I thought it might be the "kill switch" and cut the white wire to that, still won't fire. The starter turns over just fine, but it doesn't fire at all. Any spark plug that contains May 27, 2013 · Jun 1, 2013. Nov 9, 2010 · It worked fine the next several times out. With the plugs out, and with the choke and throttle open, pull her over a few times to clean her out. Sep 2, 2013 · Mar 21, 2010. 5 HP Won't Start Again. #6. Jun 4, 2015. If the plugs come out with wet electrodes, you're getting fuel to the cylinder. Apr 6, 2016 · It's a 1985 75 hp mercury that wont start but will turn over just fine. Feb 23, 2021 · So what if your outboard won’t start? In this short video from Boats. Feb 23, 2014 · Don't get stuck at the boat ramp - fix your outboards fast, with these basic troubleshooting tips. Make sure you got good spark and fuel pressure. Do that to all the cylinders as well. Engine not primed — pump primer system 8. 9 4-stroke suddenly wont start. Remember, it must have fuel, air, spark and timing to run. 3) Push in the key and turn it to START. Again recharge it and then try to start. Feb 13, 2007. Check any fuel filters or screens for debri. Once you've confirmed fuel is reaching carbs, let us know and we'll go from there. My brother has a very new 2015 Mercury 115 H. One of the most common problems that mercury outboard faces are complications of battery issue. Disconnect the fuel line to the carb and see if fuel comes out when you crank the engine. Test for voltage drop in starter circuit. Discharged battery. I recently bought a 18' Boston Whaler with a Yamaha 150 HP 2 stroke 6 Cyl motor (carbs). Jun 16, 2018 · Tweet. This motor has always been an extremely easy start. But starting fluid should have made it do something unless it was flooded. Check the spark plugs for signs of damage. Test batter, recharge or replace. It acts as if the kill switch is pulled but it isn't. Aug 7, 2022 · 8. Aug 20, 2023 · Hi there, I'm looking for advice on my 2004 Honda 9. My guess is it's flooding. Jun 16, 2020 · This vintage Evinrude Johnson 35hp has a good spark but will not start. Jun 3, 2023 · Check the fuel filter for any clogs or blockages, and clean or replace it as necessary. And when the fuel doesn’t combust, well then your boat won’t start. need compression, spark at the correct time, and proper fuel to air ratio for the cylinders to fire. I have replaced the spark plugs and checked all the connections, every plug is firing. #13. Crank it . 9hp 4-stroke not starting, bad/no spark. In this blog post, we’ll explore common problems associated with Mercury 2-stroke outboard engines and provide detailed, step-by-step solutions for fixing them Sep 6, 2006 · 8,646. Re: 2006 Mercury 50 HP Won't start! Rule out the simplest things first The motor may have flooded. Jan 10, 2010 · Jan 10, 2010. But it is still something that I changed. Possible Causes and Solutions: Low or No Fuel: Check the fuel tank and fill it if necessary. Move the shifter into gear and back to neutral to make sure it's correctly set. Ive checked the floats on the carbs and made sure the gas was fresh in the tank. 9. #9. Jun 15, 2022 · Here’s a run-down: Make sure that the kill cord is attached. Aug 25, 2007. Then remove the plugs again. Jun 28, 2021. Faulty cylinder head, crankcase or cylindersealing can be your problem or broken piston rings. May 22, 2016. If no start, then check for a spark. Then check lines for cracks inside the cowel as well as from the tank. Re: Mercury 25HP Wont Start. Sprayed with starting fluid and it won't even cough. Close the drain screw, open the fuel tap and add clean fuel. Torque cables to factory specs. 0L 4 cyl. Nov 3, 2016 · 2002 200 HPDI Won't Cranks but won't start. if when cranking engine and getting a spark its either fuel starvation ie need carbs cleaned or low Outboard Troubleshooting Tip 1: Check the Obvious. 9 HP 4-stroke that is having starting issues, it's turning over but not firing. Sometimes it will start then shut off. The motor is a 35 HP, serial # 6491xxx, which dates it as a 1984 I believe. I can jump the assist solenoid to get it to start now, but I don't even get a click when i turn the key now. A flooded 9. May 30, 2023 · Mercury 2-stroke outboard motors are highly regarded in the boating world for their reliability, performance, and efficiency. It turns over but wont fire not even with starter fluid spray. I have a Mercury 9. The plugs have spark when I pull it over. i found a few spots in the wiring coming found the ignition switch that had the insulation cracked but wires seemed to be ok. The motor was submerged last fall. Same fuel and hose connected. Even more so than before. May 29, 2010 · hey, i have a 1974 johnson 115hp mounted on a 17 foot galaxy. May 31, 2017 · Yamaha outboard cranks but won’t start refers to when the Yamaha outboard engine crankshaft rotates but fails to start the engine. between about 800 and about 1800 it drops spark on 2 and 5. By Gary Reich. Get a manual for it (here) and have at it! Jeff. Low oil preasure will limit your rpms below 2000 not stop motor and you should have a red light near pull cord. df140, not running. (I had also replaced the spark plugs earlier in the evening. Feb 3, 2007 · 569. Got a spark tester and it appears there is no spark at all 4 plugs. Nov 10, 2023 · Reason 1: Battery Issue. #1. Jun 2, 2023 · Replace the thermostat if it’s malfunctioning. Started briefly . Cranks over just doesn’t start. #3. 06-16-2018, 09:27 AM. Then Won't Start. If it fires, move to fuel pump. Kill switch disconnected. Fuel pressure is 46psi. With the lever up in start position the mark labeled start on the cam is not inline with Jan 28, 2021 · Thank you for any help in advance, i have a 2006 Mercury 25hp efi, it was running good and never had any issues with it. net, John will guide you through troubleshooting an outboard that won’t start by address Apr 5, 2023 · Messages. Next Morning Starts Right Up. just a guess but have a check to see if the float is damaged or split if it is it will let fuel into it thus making the float stay down cause of the weight of fuel in it or the float it self may need adjusting to stop it overfilling. Oct 30, 2019 · Motor not being choked to start 7. it will drop spark on cyl #5 below 800 RPM and above 600 RPM. Went from one fishing spot to another, and then another, and then it just wouldn't fire. Next check the outboard’s carburettor. Jun 25, 2013 · Jun 25, 2013. When its all cleaned and flushed , and you are sure there are no fuel leaks, remove the plugs , spray some fuel Sea Foam mix into the cylinders. Mar 30, 2016 · Mar 31, 2016. Nov 13, 2016 · Unscrew fuel/water separator, squeeze primer bulb. Re: Mercury 9. Jul 22, 2013. wv qc kk oh ih mu ze dw lo ja