Hey guys, i'm having a little problem with my 80cc slant head. When I release the throttle the RPM's takes some time to go back down. It has to be a leak somewhere but im not sure. So far I checked the intake manifold and even switched carbs but still the same problem. Any idea's?
Engine doesnt reduce RPM's when I release Throttle
- Thread starter StrontiumEthics
- Start date
You might want to check the crankshaft seals on the left side behind magneto rotor and the small gear on the right side of your engine. If either one has failed it will allow air to enter.
The magneto side seems to be the most common one to fail. Often they are not pressed into the engine case properly and if not seated the rotor will rub it and/or knock it out completely.
A small dental type inspection mirror might provide you with a view of the seals without disassembling anything.
Tom
The magneto side seems to be the most common one to fail. Often they are not pressed into the engine case properly and if not seated the rotor will rub it and/or knock it out completely.
A small dental type inspection mirror might provide you with a view of the seals without disassembling anything.
Tom
DITTO........... Tom
Another thing that can be done is while the engine is running spray WD-40 gently around the gasket area where the jug and case meet, if RPM's change are you see bubbles like air is getting out, you know you at least have one in that area.
Best wishes
Peace
Another thing that can be done is while the engine is running spray WD-40 gently around the gasket area where the jug and case meet, if RPM's change are you see bubbles like air is getting out, you know you at least have one in that area.
Best wishes
Peace
