Engine Trouble No air leak and high idle

Redbiker

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I sprayed around everything. I have found a leak in the crank seals .. both it seems. Finally got some feedback spraying them when it just warmed up.. changing them out and we will see what happens!
 

Redbiker

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Weird no oil came out of the seals though... but when I sprayed it with carb cleaner at either seal it stalled the engine
 

Redbiker

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I think it didn't stall before because I was holding the throttle to keep it running
 

Cisco

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more so if the crank is not very true
Wow, both seals. Could be a wobbly crank. Does the output gear seem to mesh well/consistently with the clutch ring gear? How is the magnet spinning? I have seen videos on how to fix this by squeezing the fly wheels until it runs true. Could be dicey though (and a lot of work). When replacing the seals, lube them well and be sure to get the inner lip onto the shaft without it folding back.
 

ImpulseRocket89

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The crux of using carb cleaner to check for leaks around rubber seals. It causes rubber to expand when it contacts it and can swell them enough to hide a leak. This is why I am a fan of starting fluid or other methods over carb cleaner when checking rubber seals.
 
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