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At wits end still runs rough

jeff6898

Contributing Member
"1979 Evinrude 85HP 85999R

"1979 Evinrude 85HP 85999R

Rerbuilt carbs, 4 new coils, wires, Champion plugs, fuel pump, gas line and bulb.
Motor runs rough and stalls. I start it and it runs then it seems to skip and shuts off. I am going to taker it to a shop for a linc and sinc but don't want to waste my money if it won't help. ANy ideas?"
 
"What is the compression on al

"What is the compression on all cylinders?

Spark plugs should be Champion QL77JC4 plugs, gapped at .040 . Are they?

Do you have spark on all cylinders that will jump a 7/16" gap with a strong blue lightning like flame... a real SNAP!?

NOTE: Remove the spark plugs (all) when testing the spark."
 
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