Hi Guys
I recently bought a 05 CRF450R with an Athena 490 kit.
First ride out the bike was fine but after a two hour ride noticed no oil in the window, the level was just under half(in between the high and low mark) before the ride.
Now there is a knocking (also not sure if the sound was there before) sound in the engine at idle but you cant hear it when u rev the engine. Its more of a pinging sound.
Can't see any visible oil leaks and no smoke out the exhaust.
We checked the cam chain was ok and no metal shavings in the oil/filter although the oil does seem to have a slight metallic tint to it when held up to the light? Is this normal?
I want to strip the bike down this weekend but my guess its most likely the main bearings? But the fact that there a no metal shavings has me confused?
And where could the oil have gone?
Any ideas or suggestions would be highly appreciated!