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Old 08-30-2012, 08:33 AM   #3768
XDragRacer
Beastly Adventurer
 
Joined: Mar 2009
Oddometer: 2,834
Quote:
is there anything i need to look for, or do, that will help it idle more smoothly?
Long-distance diagnosis, but . . . assuming the prep included carburetor cleaning, you can perhaps improve idle stability by adjusting the FUEL SCREW.

To adjust, remove tamper-resistant plug (underside of carb, engine side) by drilling hole and "picking" out the plug; bottom fuel screw LIGHTLY (with small flat-blade screwdriver), then back fuel screw out about 1.75 or so turns, good starting point for a stock engine.

This adjustment should fuel-enrich your idle mixture; conventional wisdom has KLR650's factory-set fuel-lean initially, in fear of emissions violations.

Otherwise, with clean pilot circuit, clean air filter, at about 1200 rpm, should idle reasonalbly smoothly.

For a good primer on your carburetor, click here:

http://www.gadgetjq.com/keihin_carb.htm

P.S. FORGET ABOUT your fuel mileage! You're doing fine!
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