Re: Finally, a 2 stroke with problems!!!
hey ed,things arent so bad.i had a 2000 cr and loved it,fork was a bit stiff though.if it were 10 years ago you would probably toss the cylinder and start from scratch,but nowdays we got options.1,buy new cylinder,pros-just swap powervalves and go,cons-big $$$$(maybe not for you in the states but for us downunder $500 plus).option 2,resleeve old cylinder,pros-wont cost as much as a new cylinder plus you should get a piston supplied and you can rebore the cylinder at a later date if need be,cons-loss of performance thruogh friction,cylinder wears quicker because of no plating,may need to modify powervalves when rebored(major pain in ass).or 3,send the cylinder to be repaired and replated.pros-can plate to suit piston supplied which will save you money in the long run(if you get it plated to suit the smaller honda piston,B i think,you can fit the A size piston as cyl wears),cons -none to think of apart from downtime,may take a couple of weeks to get done.
your cylinder ports are grossly mismatched(from the cases to the cyl)sit your base gasket on the cases with dowel pins in and it matches pretty good but put it on the cylinder and youll see how much the cylinder hangs over the port.if you are gonna replate the cyl,clean the ports up first.i was a bit disappointed with my cr until i did this work to it(and fitted fmf shorty,53 t rear and adjusted jetting to suit),but after the work it was like a different bike.
hope i havent bored you too much.
p.s.put a rod kit in or buy a new crank cause all the top end work will be worth squat when the big end lets go.
p.s.s.have heard of eric gorr,do yourself a favour,check out his website,buy his books,they have a permanent place in my crapper.