I have a Tecumseh mod# 143.995002 when the engine is running either a low idle or high speed it has a slight miss that happens about every 30 seconds. I have cleaned the carburetor very well and checked and double checked all the jets, I'm fairly certain the carb is clean and not the problem. I did notice there was a lot of oil on top of the engine after running. Took the flywheel off and noticed the crankcase breather cover on top of the engine appeared to have been rubbing on the flywheel and wore a hole in it causing the oil leak. Will this cause to much air or lack of enough compression to cause the miss when its running??
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