30years Posted November 25, 2011 Report Share Posted November 25, 2011 So i have everything that u could possibly bolt on for performance on my shee. It's a 66mm bore, pro d cool head, 34mm carbs, v3 reeds, k&n, moose racing clutch plates and springs, clutch lock up, + 4 timing, and cpi inframes. The cylinders i just put on are full drag port by RDZ. I got it broke in, took it out for a few passes, and after the fourth pass it was making all kinds of racket. Shut it down. Kicked it over by hand, and it sounds to be a main crank bearing or connecting rod bearing. I haven't torn it down yet. I would really like to know if i should just repair the damage if possible and put it back together, or go for a 4 or 7 mill. I don't know what is involved in stroking the motor. Can i just use everything i've got with a spacer plate and a new crank, or what? Thanks Quote Link to comment Share on other sites More sharing options...
dirtydownunder Posted November 25, 2011 Report Share Posted November 25, 2011 the port is prolly to drastic to turn into a 4/7mm. id pull yours down, see whats up and go from there. if you wanted to stroke it, youd need cylinders, crank, pistons , domes and gaskets (and a port job) (and with a 7mm crank, you need to trench the cases) seems a bit too much, if alll you need is a crank and bearings... hopefully. strip it down, see where ya at. Quote Link to comment Share on other sites More sharing options...
johndeere10 Posted November 25, 2011 Report Share Posted November 25, 2011 i would go with 4 mill and ask rob if he can save your cylinders and set the port timing for a 4 mill ...4 mill crank is cheap no trenching to the case .. Quote Link to comment Share on other sites More sharing options...
Coupelx Posted November 25, 2011 Report Share Posted November 25, 2011 there a pretty good chance that being a drag port, they could not be ported for a bigger crank. 7mil stock cylinder bike would be fun. i was originally going to build one. Quote Link to comment Share on other sites More sharing options...
30years Posted November 27, 2011 Author Report Share Posted November 27, 2011 What are the best shops in michigan other than rdz that i can talk to about my options. Where is the best place to buy parts? I see rdz offers a couple of motor kits, and override trans. I'm thinking about going all out, but i really don't wanna just scrap everything i've got and start over from scratch. Quote Link to comment Share on other sites More sharing options...
SLOPOKE21 Posted November 28, 2011 Report Share Posted November 28, 2011 Either you want to go FULL drag now or you want to keep a "duner". I had that problem before, and my bike is a handful to handle on anything but a track. Oh, and its only a 7mil. Quote Link to comment Share on other sites More sharing options...
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