KZ1000 B3

woodsy wrote: Having a bit of trouble with the idle, either 2000 revs or will sit at 1000 and gradually die, we have done everything you can think of, its got batter since we checked the timing but not brilliant, finally did a compression test today and all pot are 85 - 90 ish getting to the top reading after a few turns, we put some oil in pot no 1 and it jumped straight to 100 in 2 compresses (turns ) no thje question is, given that i rebuilt the head, lapped valves, had a kwak dealer do the shims so valves should be perfect, the bike was running fine before the head rebuild, i did take off the barrels to have them bead blasted so dekoked the pistons, i just wondering if cleaning out the grooves where the rings sit may have caused rings that were ok before cleaning to be loose and worn now they dont have a bed of carbon to sit on in the grooves of the piston
would people agree it probably need a new set of rings, the bike has done 25,000 miles and the original honing marks are still just about visible in the barrels so i dont think they barrels are worn, any advice please before i spend £160 in 4 sets of rings, thanks

woodsy wrote: ....................... idle is perfect on side stand and dies off when you lift the bike upright, so thinking float heights possible