smalley250 Posted August 5, 2007 Report Share Posted August 5, 2007 When cold my pro has some piston slap but is fine when running warm, if i were to replace the piston would the bore be ok and how much is the gas gas 280 pistons. Quote Link to comment Share on other sites More sharing options...
greg Posted August 6, 2007 Report Share Posted August 6, 2007 handbag slap,thats all you need to worry about! Quote Link to comment Share on other sites More sharing options...
peterb Posted August 8, 2007 Report Share Posted August 8, 2007 Hi there, I'm guessing you're in the UK, try one of the local GG dealers for a price for a piston kit. Usually, the PRO motors are really quiet in the piston area, maybe the bike was drowned and that can distort the piston causing it to rattle. In this case a new piston would cure it. If there is wear in the bore, you can get pistons in slight oversizes A, B, C, D which may offer a low cost alternative to getting a replated cylinder. In the past, I have fitted a D piston into a worn A bore and achieved a good outcome. Best to renew the head O rings at the same time. Bye, PeterB. Quote Link to comment Share on other sites More sharing options...
ritcrider Posted August 14, 2007 Report Share Posted August 14, 2007 My 02 was getting really noisy.........replaced piston and barrel. Runs nice and quiet now. Quote Link to comment Share on other sites More sharing options...
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