Support the site. Your contributions keep this site running.
0 Members and 1 Guest are viewing this topic.
Quote from: paulages on November 08, 2009, 06:21:43 PMQuote from: Terry in Australia on November 08, 2009, 03:57:49 AMG'Day Mate, do a search on "Paulages", Paul used a CB650 engine in his CB500 Cafe bike, and took it out to 718cc, using 61mm CB750 pistons. I don't think you can take them out much further than that without major engineering work. Cheers, Terry. oh yeah, and it's 64mm pistons that make 718cc, just to not confuse the boy.yes, very easy... a couple of set screws and some loctite, and a little re-routing... not a problem. better, in my opinion.True, but 66mm pistons make a 763cc bike.... And cb900 DOHC liners(should) work good, being 64.5mm to begin with.Oil passages become a problem though. But thats easily overcome.l8r
Quote from: Terry in Australia on November 08, 2009, 03:57:49 AMG'Day Mate, do a search on "Paulages", Paul used a CB650 engine in his CB500 Cafe bike, and took it out to 718cc, using 61mm CB750 pistons. I don't think you can take them out much further than that without major engineering work. Cheers, Terry. oh yeah, and it's 64mm pistons that make 718cc, just to not confuse the boy.
G'Day Mate, do a search on "Paulages", Paul used a CB650 engine in his CB500 Cafe bike, and took it out to 718cc, using 61mm CB750 pistons. I don't think you can take them out much further than that without major engineering work. Cheers, Terry.
Author
Topic: How far can you bore a CB650??? (Read 9378 times)
