86 Force 125 not firing on 1 & 2 after it gets warm

[theramman]

All of the sudden my Force 125 stops firing on cylinder 1 & 2. When you pull the plugs they are clean with little water droplets on them. When running the top carb drips gas out of it... But, if I put my hand over it, it will choke it and almost kill it. I first thought maybe the reeds went bad, but that doesn't explain when it runs okay when it first starts cold. Spark is fine. Anyone have any ideas???

 

[Jiggz]

Re: 86 Force 125 not firing on 1 & 2 after it gets warm

Did you mean spark is fine when #1 & #2 are not firing? Which means #1 & #2 have sparks but not firing? Or are they only fine when it is still cold? When it is not firing on #1 & #2 you need to check for the trigger voltage and stator voltage. Better yet while it is not running do a visual check on all the wiring on the stator and trigger for broken insulation.

 

[theramman]

Re: 86 Force 125 not firing on 1 & 2 after it gets warm

Sorry, spark is always good and I found the problem! Did a compression check and got 90, 90 , 140, 140 (from 1 to 4 respectively). So..... I suspected a blow head gasket, yanked the head and sure enough, the compression ring was broke on 1 & 2. Just waiting for the gasket to come in and I should be back in the water in no time....

 

[jerryjerry05]

Re: 86 Force 125 not firing on 1 & 2 after it gets warm

Isint it great when It's a simple fix???

 

[theramman]

Re: 86 Force 125 not firing on 1 & 2 after it gets warm

Relatively speaking, yes!