I just installed the 42mm carb kit and I noticed after running the motor I had oil blow by into the filter. The motor has pretty low hours on it so i can't imagine it's the rings already on my 35hp MB. Has anybody else seen this with there motor?

Head gaskets pretty common failure

Are you filling past the full mark, up to the bend that some people recommend? If mine isn't 2.0qts exact, or less, it burps out the crankcase breather and is not a head gasket failure. Does it much more at 5,000 rpms.

^ overfill should have been first response. I jumped the gun on that one

Mine does that when I'm carving a hard right hand turn for too long.


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But Briggs rings aren't known for the best seal either..