Mikedom
New member
I am helping my brother out on this one. The miss comes on when the engine is warm. It is the clutch side cylinder. However, it is not loosing spark, we put the spark tester on each cylinder, they are all firing. Compression is good both hot and cold, carbs are spotlessly clean. What could cause this? Engine runs fine above idle. Seals are fine. Reeds look fine. Engine has about 7,000 miles on it and was never touched. Any ideas?? Mike
daman
New member
try new plug's??