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| 23 briggs v twin running on 1 cylinder http://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=3&t=33472 |
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| Author: | mvp111 [ Sat Oct 20, 2012 8:15 pm ] |
| Post subject: | 23 briggs v twin running on 1 cylinder |
Hello guys. 23 hp briggs V twin on long tail go devil. Crank it up and drop it in water and it runs fine for a very short time then drops to one cylinder. Seem like it does this only under a load. Ran great out of the water. Ran it at 3/4 throttle for 10-15 minutes with no issues. New plugs. No ethanol. Carb is spotless. Haven't dug into it any more at this time. Any ideas??? Thanks |
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| Author: | CCC [ Sat Oct 20, 2012 8:19 pm ] |
| Post subject: | Re: 23 briggs v twin running on 1 cylinder |
Have you looked at the new plugs? Might be burnt up already. It's gotta be a spark or compression issue |
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| Author: | mvp111 [ Sat Oct 20, 2012 8:22 pm ] |
| Post subject: | Re: 23 briggs v twin running on 1 cylinder |
tried three different sets. changed tank and fuel line . changed fuel pump. could it be a bad voltage regulator or a bad coil? |
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| Author: | CCC [ Sat Oct 20, 2012 8:24 pm ] |
| Post subject: | Re: 23 briggs v twin running on 1 cylinder |
Test the spark, test the regulator and test the compression. Sounds like a spark issue |
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| Author: | mvp111 [ Sat Oct 20, 2012 8:25 pm ] |
| Post subject: | Re: 23 briggs v twin running on 1 cylinder |
i saw a post about a diode in one of the coil wires??? |
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| Author: | CCC [ Sat Oct 20, 2012 8:26 pm ] |
| Post subject: | Re: 23 briggs v twin running on 1 cylinder |
I have no idea, |
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| Author: | mvp111 [ Sat Oct 20, 2012 8:28 pm ] |
| Post subject: | Re: 23 briggs v twin running on 1 cylinder |
I will do some checking tomorrow. Just hate to replace parts that might not be bad. Had it out this morning. Cranked up fine. dropped it in the water and it ran wide open with no issues then about 30 seconds later dropped to one cylinder. |
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| Author: | CCC [ Sat Oct 20, 2012 8:30 pm ] |
| Post subject: | Re: 23 briggs v twin running on 1 cylinder |
No need to replace anything yet get a volt meter and a compression tester and figure it out |
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| Author: | mvp111 [ Sat Oct 20, 2012 8:31 pm ] |
| Post subject: | Re: 23 briggs v twin running on 1 cylinder |
ok thanks for the help |
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| Author: | Team Camo [ Sat Oct 20, 2012 9:24 pm ] |
| Post subject: | Re: 23 briggs v twin running on 1 cylinder |
leak down test also. Doesn't sound like it's diodes. When they go out, it'll run on one cylinder all the time, but as soon as you put it under a load it'll crap out on you. Running for 30 seconds will get it warm enough to trip a bad oil sensor. Check the oil level to make sure it's good, then disconnect the oil sensor & run it to see if the problem is still there. Could just be a bad sensor, or possible bad oil pick up inside block. |
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