blkrdrcr wrote:
Have to correct you on getting the 750 cyl and bore out. I did the following mods back in 81 to my 79 650.
MTC 831 KIT (top case bored/o-ringed and resleeved)13:5:1 pistons (gas ported), Kenny Harmon 410 lift cams(heads cut to accept cam profile), stock rods (shot peened hardened by falicon),manley 1 piece s.s. valves 31mm exhaust, stage III port/polished head(could get a golf ball in dem ports)APE case studs,hvy duty valve springs(V&H)stock retainers as they can handle 2x's stock power, crank lightened(falicon),1st gear undercut, barnett race clutch/hvy duty springs, Mikuni 29mm smoothbores, Dyna Ign & Blue Coils,andrews ign wire.
Hmm, I don't see a correction, just another way of doing it.
kxhonda, I haven't tried it yet (just haven't got around to it) but I think you can use the six speed gears on the 650 output shaft and avoid doing all that work on the countershaft sprocket end. I have done some research (comparing part numbers, etc.) on swapping the gears onto a 750 output shaft, and it appears likely to work. I picked up a shaft drive 550 six speed trans (because the shaft drive transmissions are really cheap) to try it.
And your motor build is pretty much the same as I'm building, just haven't got the bucks for the cams yet so I'm using GPz750 cams.
And GPz750 Turbo throttle bodies with 1100 injectors and a MegaSquirt