marco

ok, thanks, Ill try and source one from somewhere else

Does anyone know what the consequences are of using 29mm shims instead of the proper 29.4mm ones. is the shim likely to jump out of the bucket or will it make a tapping sound if it moves about in the bucket. reason is the proper shims are on back order here and only available in about a month, they have to come from Japan. Suzuki SA has no stock

Thanks for the replies, I'm going to try to find another set of barrels, unfortunately I'm in South Africa so no auction sites here and the shipping would be probably more than the cost of the parts. The groove in the barrel is at least 1mm deep so only about 0.4mm left at that point on the liner. at least there's a half decent engineering place near to do a rebore

the pistons are fine, can't see a makers mark on them. it's barrels that are my problem

I just measured the liner thickness and Its 1.4mm thick. definitely toast. it is a standard 997cc barrel that has been bored to its max then

Hi I need help, I've just started a top end rebuild on my GS as it was running a bit rough and had a couple of minor oil leaks. What I found was a horror story, number 3 barrel has two massive grooves in it, the piston was missing one circlip and the other circlip was 2mm diameter too small and ready to fall out. the gudgeon pin/ wrist pin was scraping against the side of the barrel. I've measured my barrels and they are 73mm inside diameter, the pistons are marked with the numbers 350. am I right in thinking that this has been over bored a lot in the past. Am I going to have to get new barrels, pistons and rings? Or can a standard barrel be bored out by 3mm