Z1OwnersClub GB

Posted: **Mon Nov 28, 2011 7:05 pm**

Sorry for asking a stupid question.
One has had both valves stamped through the piston and into the seats. But the others are fine. Already at +.50.

thanks for your help.

Posted: **Mon Nov 28, 2011 7:30 pm**

No - you can have just 1, 2, 3 or 4 done :wink:

Posted: **Mon Nov 28, 2011 7:45 pm**

excellent, thanks Mark.

Z1OwnersClub GB

do all cylinders have to be rebored?

do all cylinders have to be rebored?