I have a yamaha 83 enticer 300 that has a issue I can not figure out for the life of me. It misses on the mag side cylinder, it does it the worst under half throttle. When idling the temp of the pto cylinder will be 300F and the mag side will be 110F. The mag spark plug is usually wet.
What I have done/checked.
- cleaned carb and verified flow from the fuel pump
-New CDI
- New spark plug wire caps, swapped wires and ran it to verify it is not a cdi/coil issue.
- Compression check showed 98psi on both cylinders
-sprayed carb cleaner around pto crank seal and all around intake to check for air leaks.
I am out of ideas as to why that one cylinder misses when they both share the same carb and both have the same compression with good spark. Any ideas are appreciated!!
What I have done/checked.
- cleaned carb and verified flow from the fuel pump
-New CDI
- New spark plug wire caps, swapped wires and ran it to verify it is not a cdi/coil issue.
- Compression check showed 98psi on both cylinders
-sprayed carb cleaner around pto crank seal and all around intake to check for air leaks.
I am out of ideas as to why that one cylinder misses when they both share the same carb and both have the same compression with good spark. Any ideas are appreciated!!
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