I'm looking for a big bore kit. I called my local dealer (Bill's Husqvarna) and I was told there's a 2mm kit out there to punch it out to 600cc. Does anyone know of anything bigger out there? Any experiences in the past with the 610 kits?
I know that Uptite used to make a "big Bore" kit for the 610 as well as a good cam grind and the last I heard was that he wanted to have some more cams ground but I think there needs to enough interest to justify the investment.
WiseCo made a piston for it, but last I checked, they were out of stock. You can also check with GP Cycles in San Diego, they used to race the 610 and have experience with BB kits.
I read somewhere that the big bore kits for the SM610 wouldn't work with the electric start 610's - does anybody know if that is really accurate? I'd like a few more ponies out of my '08 SM610 if possible.
New out of the crate. Ported head, FBF cam and FBF 98mm piston 12.5:1. I was told by the dealer it was a 650 kit. I got the Dyno and reciepts from the original owner. It came in at 56.20 hp. I bought it with 225K
