Ja-Moo wrote:
Why in the world would you go to 1.5 on the slides?
If memory serves I was trying to get to 2. Probably got a little happy with the grinder. Any thoughts on how to fix it other than adjusting the cutaway bevel with a grinder?
Jim wrote:
Idle speed not coming down is most likely do to lean running and/or an air leak. Since it's a closed throttle problem, the needle position is not related. Air leaks can be in quite a few places, like carb boots, cylinder bases, and crank seals. Was the crankshaft rebuilt recently? If not, have you done a pressure/vacuum test to find out the condition of the seals?
I haven't done a vacuum test. I checked all of the other usual air leak points and didn't find anything. I'm not inclined to believe it is a crank seal since I can get it to idle well and the crank has less than 500 miles on a rebuild.
The only other thing that I can think of that could be contributing is my float heights. I know my KZ is very touchy when it comes to float heights, are H2's?
With all of that said:
raising the needles 1 groove has taken care of the problem. It doesn't make any sense to me but the bike runs well and pulls well in the mid range. So, I'm guessing I had a 'perfect storm' of symptoms:
My twist grip was sticking to the right handle bar, causing the slides to hang. Cleaning and lubing took care of that problem, allowing the slides to snap closed (they were not before the cleaning).
My needles were too lean (lowered too much). Normally not a reason that would cause this but....
My slides have too little cutaway, causing an overly rich condition down low. Not sure how that in combination with the needles causes the issue but ok.
None of that seems like it makes a lot of sense and I hope I am not just covering up a problem with the needle adjustment.