| Misfiring on one cylinder on my 14hp Briggs Vanguard Vtwin. | |
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craftworks125 New Member
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![Misfiring on one cylinder on my 14hp Briggs Vanguard Vtwin. Empty](https://2img.net/i/empty.gif) | Subject: Misfiring on one cylinder on my 14hp Briggs Vanguard Vtwin. May 31st 2012, 9:30 am | |
| Hey my motor is a 14hp Briggs Vanguard Vtwin. It is straight piped to under the foot rests and exists in front of the rear tires. This motor has never let me down. My last mudding adventure, one cylinder started misfiring. It strarted doing it when i went through deep mud in 5th gear. It sounds like one cyclinder is working a lot harder than the other when i was going fast in the mud. then i would let out the clutch and they would both have the same tone again. Now i can hear the left cylinder missing at idle. That is the only time i can hear it, it still rips at max RPMs (governed). I am thinking i need to adjust my valves. I am really hoping that is all i need to do. If there is anything else you guys think it could be, please let me know. Thank you | |
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TheRainbowBoxer Moderator
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craftworks125 New Member
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Stretch44875 Administrator
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craftworks125 New Member
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craftworks125 New Member
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TheRainbowBoxer Moderator
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craftworks125 New Member
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![Misfiring on one cylinder on my 14hp Briggs Vanguard Vtwin. Empty](https://2img.net/i/empty.gif) | Subject: Re: Misfiring on one cylinder on my 14hp Briggs Vanguard Vtwin. June 1st 2012, 7:36 am | |
| it wasn't the spark plugs. Now it only leads me to think it is is my valves. That or i lost compression, but i am really hoping i can just adjust my valves and it will be fine. The reason i think it is my valves and not like the air filter or carb is becasue it only misfires on one cylinder. Please let me know what you think. | |
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dked41 Member
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craftworks125 New Member
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dked41 Member
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TheRainbowBoxer Moderator
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![Misfiring on one cylinder on my 14hp Briggs Vanguard Vtwin. Empty](https://2img.net/i/empty.gif) | Subject: Re: Misfiring on one cylinder on my 14hp Briggs Vanguard Vtwin. June 1st 2012, 2:00 pm | |
| I all of the years of running these engines, the only valve related issue I have ever encountered was a failed push rod on my 14 horse OHV single cylinder. If it was the same thing on your machine, I would think you'd have nothing from that side at all. Not saying your instinct isn't correct on this, but keep your mind open to other possibilities. Just some friendly advice from a guy who is a troubleshooter by trade ![Wink](https://2img.net/i/fa/i/smiles/icon_wink.gif) | |
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craftworks125 New Member
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Age : 28 Join date : 2012-04-24 Points : 4508 Posts : 24 Location : michigan
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TheRainbowBoxer Moderator
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Age : 49 Join date : 2012-04-23 Points : 5584 Posts : 1091 Location : Galion, OH
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Stretch44875 Administrator
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Age : 49 Join date : 2012-04-05 Points : 5584 Posts : 959 Location : Mansfield, Ohio
![Misfiring on one cylinder on my 14hp Briggs Vanguard Vtwin. Empty](https://2img.net/i/empty.gif) | Subject: Re: Misfiring on one cylinder on my 14hp Briggs Vanguard Vtwin. June 1st 2012, 11:22 pm | |
| You need some basic things for any engine to run.
Spark Spark timing compression gas
If you have those, it will run. Unless you have too much gas, or something along those lines.
You have gas. Compression, pull both plugs and put your finger over the hole while starting. See if both holes feel like they are pushing the same amount of air out. Spark timing is right, otherwise the other cylinder would not fire. Even if the spark plug is sparking outside of the engine, it may not fire under compression when installed.
First thing I would do is put new plugs in, regardless of how old they are. Plugs go bad. If it is still missing, I would suspect the coil is shot.
Good luck | |
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dked41 Member
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craftworks125 New Member
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| Misfiring on one cylinder on my 14hp Briggs Vanguard Vtwin. | |
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