gixermike Posted April 22 Share Posted April 22 i have been offered an rf900 motor with a knackered top end not sure how knackered yet though just wondering what is available in regards to big bore or any other ideas to make it quicker thank you Quote Link to comment
Upshotknothole Posted May 13 Share Posted May 13 I know 750W heads fit, and I think 1100W heads fit, since the down draft head on an RF900 won't fit a W frame. Not much out there for 900s, but you can still get big bore 750W and 1100W pistons. I can't remember if the 900 was a big bore 750 or a sleeved down 1100, so no idea on rod length or stroke. 1 Quote Link to comment
johnr Posted May 14 Share Posted May 14 ie an 1100w motor in the shed somewhere. Quote Link to comment
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