Wilsons Sandbox

--- In DSN_klr650@egroups.com, Adam Stahnke wrote:

> Drained the float bowl and performed Redondo Ron's "float bowl

drain tube test." The best I can tell, the floats are prorperly adjusted. There was some gas leakage from the drain/hose connection during the test though. I can get it to idle with the choke on and off, without black exhaust. Taking the choke off and applying 1/8 throttle brings back the black exhaust and rough running. I am suspecting the floats or the choke/enricher. Any other thoughts? I didn't remove the needle jet, pilot jet, or main jet when cleaning.

>

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Adam, It sounds like the carb slide is sticking and won't move freely. If this is the case, you're not allowing enough air flow thru the carb when you open the throttle, giving an overly rich fuel/air mixture and the reulting rough running & black exhaust. With the carb removed, the slide should easily move up & down, by manually lifting the slide. Several questions (& don't be insulted, it's easy to overlook the obvious, I know from personal experience). 1) Is the circular butterfly valve opening & closing properly? 2) What exactly did you do when you "cleaned" your carb? a) external clean only? b) clean float boal only & leave the carb top intact? c) remove carb slide? if yes: a) did you clean and/or lube the slide? if yes, did any dirt/grease get on the slide when you reinstalled the slide? b) is the slide properly installed? With some some older CV carbs (Honda twin cylinder) you could do this, with results similar to yours. I don't think that the KLR carb will allow this. c) is the rubber carb slide diaphram properly seated in the carb body/top groves? d) is the jet-needle interfering with the needle jet in the carb body? 3) Did you service the air filter? Is there any blockage to the air intake on the air filter box? 4) Did you use the CV Carb Guide at: http://www.dualsport.org/cvcarb/index.html Words of wisdon: We get too soon old and too late smart. A fool is one who does NOT learn from his mistakes. Professor '95 KLR650 A9 Federal Way, WA [USA]

Signing off for a few days. Traveling-for-work calls. Ralph Ralph E. Hanson 99 KRL 650 http://www.wvu.edu/~journal2