unstable idle

[landsail]

Using my 2007 KLR650, I added a backrest using a Suzuki Samurai Headrest. From an online salvage source, a low cost Samurai headrest with 8.5 in post spacing is used http://www.samuraisalvage.com/searchresults.asp The posts are threaded to 7/16 x 20 threads on these metric smooth posts, Two 1/2 in or metric nuts are welded on the accessory KLR rack and drilled out to fit the 7/16 threaded rods. Stainless 7/16 x 20 nylocks, fender washers, jam nuts are used on the headrest posts. Easy to remove and comfortable per my passenger. Total cost about $80. See the Backrest photo album. Mark in Nevada.

[hershonm]

Do you mean an air leak at the intake, like between the carburetor and head? Isn't there a way to spray something at that joint while the engine's running to see if the idle speeds up? Thanks! Maynard

--- In DSN_KLR650@yahoogroups.com, "judjonzz" wrote: > > --- In DSN_KLR650@yahoogroups.com, "hershonm" wrote: > > > > I'll be riding my fully warmed-up '08 from stoplight to stoplight, shifting into neutral while waiting for the lights to change. Sometimes the bike will idle at 1100rpm as it should; other times it'll idle at about 1400. Fourteen hundred irritates me. It sounds too fast and IS too fast. > > > > There's slack in the throttle cable. It does it with the steering pointed straight ahead. The bike is dead stock. It feels the way bikes used to feel when the mechanical advance would stick open, advanced, and the bike didn't want to return to its normal idle speed. > > > > Any ideas? Thanks! Maynard > > > > In addition to what's been suggested, you might check for an air leak. >