[13mmurp]

i have a 250ex 2002 and when i shut the engine off it sounds like something spinning inside the engine is that normal?

 

[Helmut]

Welcome to the forums. Your one-way clutch bearing is bad. This bearing is responsible for engine braking, so you may notice it not holding back when coasting or going downhill.

 

[shadetree]

agreed ^^^^ one-way bearing is bad.