Dane and danjray
At 42,000 miles I was chasing a engine noise and suppected piston raddle. So I bought a 95mm piston and went into the motor to do a bore job. Welll the piston skirt was wore out but the cylinder didn't even have a ring-grove. (as in piston raddle in the hole). I should have put a fresh factory(94mm) piston in and run it another 42,000 , But there I was with a 95mm piston in hand ; so I bored it out , "BIG MISTAKE".... MORAL of the story ,
Keep the oil fresh
do the Versey cam-tentioner at about 14-15 k miles
keep the valve-clearence close
leave well enough alone and keep riding !
Oh yea ; when that little tapping noise does come-in about 50,000 or so .... look for a ring grove befor you buy the larger piston.