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| Running on one cylinder http://mudmotortalk.com/mmt_v2/viewtopic.php?f=3&t=74688 |
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| Author: | Jaeger09 [ Mon Nov 04, 2019 6:06 pm ] |
| Post subject: | Running on one cylinder |
I am currently running on one cylinder on a vanguard 36. Occasionally the engine will run on both cylinders. I have run through the gambit of troubleshooting to include 1- set and confirmed valves adjusted properly 2- getting spark at both plugs. When I pull the plug wire on cylinder the engine is running on, and leave the non running cylinder plugged in to the spark plug that cylinder will run. 3- no intake or exhaust leaks 4- fuel clean and new fuel filter 5- carb cleaned Not sure where else to go with it. Any suggestions? |
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| Author: | Russ [ Mon Nov 04, 2019 6:34 pm ] |
| Post subject: | Re: Running on one cylinder |
Leakdown test. Wrap the plug boots all the way back to the cowling, or even the coil, with electrical tape in case you're leaking spark. #CFFITR #GhostBoat #Whoneedsphysicsihaveamudmotor |
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| Author: | Russ [ Mon Nov 04, 2019 6:37 pm ] |
| Post subject: | Re: Running on one cylinder |
Now, on the trailer, typically cylinder 2 won't do much. Only under load does it start to work. My engine doesnt sound much, if any, different with cylinder 2 spark plug boot unhooked. Different story in the water in gear. #CFFITR #GhostBoat #Whoneedsphysicsihaveamudmotor |
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| Author: | Jaeger09 [ Mon Nov 04, 2019 6:56 pm ] |
| Post subject: | Re: Running on one cylinder |
| Author: | Russ [ Mon Nov 04, 2019 9:45 pm ] |
| Post subject: | Re: Running on one cylinder |
Nope. Never put a gun on it. #CFFITR #GhostBoat #Whoneedsphysicsihaveamudmotor |
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| Author: | Wilson [ Mon Nov 04, 2019 10:43 pm ] |
| Post subject: | Re: Running on one cylinder |
I just had the same problem. After much trial and error, I found that one of my spark plugs had a hairline crack in it. New plugs fixed it. Now I've also had a diode go bad, which will cause it to run on one cylinder. |
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| Author: | mranderson27 [ Thu Nov 28, 2019 2:00 pm ] |
| Post subject: | Re: Running on one cylinder |
I’m battling a similar issue myself. I’ve been through the mikuni (thoroughly), checked and rechecked last (Willy fast YouTube method), when I get home From thanksgiving now I’ll pull my coweling and run electrical tape. If that doesn’t do it I will be at a a complete loss. My next move will be to lap my valves or have a valve job done. |
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