hi all im trying to get to the bottom of my leak ive changed all seals on the clutch side because the clutch oil has been geting throw some how. this i dont no all the seals lookt ok apart from the o ring behind clutch basket so ive put new seals in all round the clutch side the leak i had was on the front sprocket end drive it only came to light when i draind the gear box oil. and noticed it was red. can anybody help? cheers chris

I once had a Pursang that did the same thing when new. It was leaking around the primary side crank seal, through porous flaws in the seal holder.

It was a small leak and I raced the bike for half a season before I figured it out.