Piston's hairline cracks

I'm sure the lightweight Guru's will help but for my money any cracks in any piston isn't good news, if they are available easily then I'd change them.

Of course most of theNOC tech wizards have the opposite problem, cracks in the hairline!!

Cracks in pistons!!! Put them back in and on your head be it!! In fact you will probably be on the other end when the engine blows and you fall off! The Navi and the Electra for that matter seem to do this as a matter of course.

By the way what's rondelli doing on here? When did he have a 'little bike' Mind we don't pull some of your hair out the next time we get hold of you. Lov Al

Old thread I know, but was just doing some research, I still have my jubilee piston from my first 250, back in the 70's, it too has a crack from the pin to the rings and used to sieze when it got hot. A lack of Pistons meant I had one at 40 thou over and one at 60! Never noticed any difference in vibration.

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