Good news folks ive saved my r80rt engine no oil leaks on the top cylinder stud top left where the oil flows to the rockers ,was actually on the block where it was damaged by some muppett with a centre punch grrrr I used j b weld dry as a bone now. NOW just to sort the other jobs out. got a question whats the best way to bleed the brakes on these bikes front brakes bloody terrible to bleed ! time for a pint