nklr: carb and air box mods

[traderpro2003]

From a cold start, I used to set the choke on full and it would start right up and run at high idle. Now, with full choke it won't even start unless I give it a little throttle and hold it. Once it's started if I release that little bit of throttle it sounds like it hasn't run in awhile (thud thud thud) and doesn't idle higher. But if I hold a bit of throttle it runs fine. Then maybe 20 seconds it runs like normal and once I get out on the road it runs normal and idles normal. Before I go too deep, any thoughts what to do/check? It has fuel in the line (see through filter and used an allen wrench to drip some from the bowl), no holes in the fuel petcock vacuum line, I cleaned the air filter, did a general 'nothing wierd' visual inspection...even splashed some Fat Tire Ale on it...nothing helped.

[E.L. Green]

--- In DSN_KLR650@yahoogroups.com, "traderpro2003" wrote:

> > From a cold start, I used to set the choke on full and it would start > right up and run at high idle. Now, with full choke it won't even > start unless I give it a little throttle and hold it. Once it's > started if I release that little bit of throttle it sounds like it > hasn't run in awhile (thud thud thud) and doesn't idle higher.

Sounds like something's clogged up, or like your idle enricher isn't activating. Maybe the cable's stretched or something. Try running some seafoam through the carb and see if that helps, and check the cable to make sure it's pulling the enricher knob down at the carb.

[Jeff Saline]

On Thu, 14 Aug 2008 02:57:41 -0000 "traderpro2003" writes:

> From a cold start, I used to set the choke on full and it would start > > right up and run at high idle. Now, with full choke it won't even > start unless I give it a little throttle and hold it. Once it's > started if I release that little bit of throttle it sounds like it > hasn't run in awhile (thud thud thud) and doesn't idle higher. But > if > I hold a bit of throttle it runs fine. Then maybe 20 seconds it > runs > like normal and once I get out on the road it runs normal and idles > > normal. > > Before I go too deep, any thoughts what to do/check? It has fuel in > > the line (see through filter and used an allen wrench to drip some > from > the bowl), no holes in the fuel petcock vacuum line, I cleaned the > air > filter, did a general 'nothing weird' visual inspection...even > splashed > some Fat Tire Ale on it...nothing helped.

<><><><><><><><><> <><><><><><><><><> traderpro2003, Your comment that with full choke you must hold the throttle open for about 20 seconds suggests it's running rich. Have you tried not using the choke or using less choke when starting? Holding the throttle part way open allows more air into the mixture leaning it out. A cold engine needs a little bit richer mixture to start but once running with the combustion chamber warming it can quickly be leaned out. i.e. reduce the amount of choke used. When was the last time you checked valve clearances and what did you set them at? Some folks report that when the clearances close up the choke starts acting like an on/off switch with no middle ground. I'm surprised splashing Fat Tire Ale on it didn't help. Best, Jeff Saline ABC # 4412 South Dakota Airmarshal Airheads Beemer Club www.airheads.org The Beautiful Black Hills of South Dakota 75 R90/6, 03 KLR650, 79 R100RT ____________________________________________________________ Click here to find the perfect picture with our powerful photo search features. http://thirdpartyoffers.juno.com/TGL2141/fc/Ioyw6i3mDcGogbCCXmVVWkWFHKHZdd0RvwTTSZT2BBQftMhP2EjGio/

[Chris Norloff]

Flyyyyying into Los Angeleeez .... -----Original Message----- From: DSN_KLR650@yahoogroups.com [mailto:DSN_KLR650@yahoogroups.com] On Behalf Of albatrossklr Sent: Thursday, August 14, 2008 8:48 AM To: DSN_KLR650@yahoogroups.com Subject: [DSN_KLR650] Re: carb and air box mods Hello Rev.... You been listening to too many Arlo Guthrie songs.... albatross walking on a moving floor, trippin on the escalator

--- In DSN_KLR650@yahoogroups.com, "revmaaatin" wrote: > > --- In DSN_KLR650@yahoogroups.com, Paul Statham > wrote: > > > > Guys > > We have just returned from across Canada trip 12785 Kilos in total > > > > Paul, > If you carried 12784 Kilos in Canada, and got away with it, I suggest > you retire...and I am NOT going to ask what was in those kilos. I > don't chase those that dealt in Kilos, no more. > > However, if your RIDE was 12785 KM, welcome home. I am sure you had > fun! > > revmaaatin. who can tell the difference from an apple from an orange, > and a Kilo from a kilometer.

[traderpro2003]

It all started after a hard-n-fast ride over say 5 hours--higher end of the tach (partially due to 14T front sprocket). Not until I went to start it after being parked for 5-days at a trail head (to hike and fish) did I notice the problem starting. I couldn't get it to start until I tried adding some throttle. I'm hoping something is clogged. Unfortunately, I no longer live by the ocean; otherwise, I'd try the seafoam. Not sure my auto shops carry this. But thanks for the rec. Probably, I'll remove the carb clean it, check the enricher and cable.

> Sounds like something's clogged up, or like your idle enricher isn't > activating. Maybe the cable's stretched or something. Try running some > seafoam through the carb and see if that helps, and check the cable to > make sure it's pulling the enricher knob down at the carb. >