Wilsons Sandbox

On Tue, 17 May 2011 09:24:01 -0500 Kevin Powers writes:

> I recently developed a problem with the bike stumbling at large > throttle > settings or sustained highway speed. The bike starts readily and > runs fine > at low speeds, but behaves as if it were running out of gas on > acceleration.

SNIP

> Kevin Powers > White Bear Lake, MN

<><><><><><><> <><><><><><><> Kevin, That kind of sounds like a torn carb diaphragm. Might be worth investigating when you are replacing the broken choke part. If you do find the diaphragm torn a less expensive replacement is available through your local Harley dealer. You can ask for a slide/diaphragm for a 2000 883 Sportster and get the part you need. Taking the old part with you will allow you to compare just to make sure it's the same. Cost for a Kawasaki part is about $140 or so and the Harley part is about $50. Oh, if you put a few paper towels under the carb when you do that kind of work falling parts can get caught in the towels instead of hiding from you. : ) Light colored rags work well too. 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 . . ____________________________________________________________ Penny Stock Jumping 3000% Sign up to the #1 voted penny stock newsletter for free today! http://thirdpartyoffers.juno.com/TGL3141/4dd28a3774f7f4857bfst06vuc

The Harley carb diaphragm is a perfect fit since the Harley carb is a Keihin CV40. I skip the parts counter and head out to the shop area to see if there are any "take off" CV40 carbs available. The mechanics told me that they had "shoeboxes full" of these with zero miles use since they were replaced before the bike left the shop. I paid $50 for such a carb and suspect that it could have been mine for a six pack or two. BTW I had the same symptoms and found that I had an electrical rather than a carb issue. There is a little white plug that plugs into a circular black connector. If this plug is loose or dirty it produces the same symptoms. I used contact cleaner then added a bit of dielectric grease to preclude arcing. From: DSN_KLR650@yahoogroups.com [mailto:DSN_KLR650@yahoogroups.com] On Behalf Of Jeff Saline Sent: Tuesday, May 17, 2011 7:44 AM To: PowersHouse@... Cc: DSN_KLR650@yahoogroups.com Subject: Re: [DSN_KLR650] Stumbling along On Tue, 17 May 2011 09:24:01 -0500 Kevin Powers > writes:

> I recently developed a problem with the bike stumbling at large > throttle > settings or sustained highway speed. The bike starts readily and > runs fine > at low speeds, but behaves as if it were running out of gas on > acceleration.

SNIP

> Kevin Powers > White Bear Lake, MN

<><><><><><><> <><><><><><><> Kevin, That kind of sounds like a torn carb diaphragm. Might be worth investigating when you are replacing the broken choke part. If you do find the diaphragm torn a less expensive replacement is available through your local Harley dealer. You can ask for a slide/diaphragm for a 2000 883 Sportster and get the part you need. Taking the old part with you will allow you to compare just to make sure it's the same. Cost for a Kawasaki part is about $140 or so and the Harley part is about $50. Oh, if you put a few paper towels under the carb when you do that kind of work falling parts can get caught in the towels instead of hiding from you. : ) Light colored rags work well too. 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 . . __________________________________________________________ Penny Stock Jumping 3000% Sign up to the #1 voted penny stock newsletter for free today! http://thirdpartyoffers.juno.com/TGL3141/4dd28a3774f7f4857bfst06vuc [Non-text portions of this message have been removed]

I agree with the probable cause / solution. Take the diaphragm / slide out and "really" look at it and you'll probably see a small tear - doesn't need much to cause a problem. As the tear in the diaphragm grew, my max rpm level continued to drop over a two week period. The H-D part is 33% the cost of that from Kawi. I've run my bike for several years on the H-D diaphragm / slide without an issue. Don R100, A6F

--- In DSN_KLR650@yahoogroups.com, Kevin Powers wrote: > > I recently developed a problem with the bike stumbling at large throttle > settings or sustained highway speed. The bike starts readily and runs fine > at low speeds, but behaves as if it were running out of gas on > acceleration. I was thinking that something may be obstructing the main jet > so I set about investigating. I drained the float bowl and had some > particles of grit in the drained gasoline. So then I disconnected the > control cables and rotated the carb so that I could drop the float bowl for > inspection. The bowl was clean and the jets were clear and unobstructed. > Then, gravity reared it's evil head. The pin holding the floats fell out > and down into the nether regions of the moto. Dang. So I went exploring. > No luck finding the pin. I did manage to find a nickel-size pebble that had > lodged in the space below the starter motor and from the shine on the pebble > and engine case had been spinning around polishing things as I went down the > road. Still no pin. A KLR is a bit much to turn upside down and shake > until the loose parts fall out. Removed the sprocket cover - not in there. > Dropped the bash plate - nut in there either. Was getting ready to remove > the KLR from the lift when - Eureka! - I found the pin, it had passed all > the way through and rolled to the edge of the lift. With the pin found I > was able to button everything up. > > Long story short, the "shortcut" of rotating the carb rather than removing > it turned this project into a major time suck. Oh, and did I mention that I > cracked the plastic where the choke cable enters the carb. Not a good night > in KP's Garage. I still need to test drive the beast to find out if I > solved the problem or just created more problems. Sigh. > > -- > Kevin Powers > White Bear Lake, MN > > > [Non-text portions of this message have been removed] >

Maybe down in the flatlands...........it's been 0-0 up here since Sunday afternoon. There was a 3,000 ceiling in Palm Springs, but the mountains to the west are 3,500'+. I don't believe I'll fly by Braille..............The bumps are too scary. Buddy

On May 13, 2011, at 9:22 PM, revmaaatin wrote: > > > --- In DSN_KLR650@yahoogroups.com, "roncriswell@..." wrote: > The rubber cushion on that gear was starting to tear up. Sobering news for all us high mileage KLR's. >> >> Criswell >> > Ron- > An interesting premise: I'm not sure that it is anything to worry about. > Statistically, (IMO) each bike is an independent event. > However, there are certain items that have known replacement intervals. > What I do know (the known, known) > Many aviation components have a known hour or cycle interval for replacement. > Historically, many/most aircraft piston engines 'fail' within 10% of their TBO =time between overhauls. > Jet engines fail in the hot section, not after hours, but intervals or start cycles. (think cold to hot expansions) =ambient to +500C in 60 secs. > Thou shall not exceed the manufactures hour limits on a rotor blade lest thou dash thy foot/face/body into the earth unexpectedly; etc. > > That said, is there a 'known' replacement interval for the internal chains? I think it would be 'stretch' (no manual handy to confirm) that limits chain life. > or perhaps, you might think there should be a mileage based replacement limit based on your present observation. > > Others here have reported exceeding 60, 70, 80K miles without replacing the internal chains....shrug. > > Class--what say you? > > revmaaatin. who would like to know, what happened to the sun. I prep the bikes and it is STILL sub 40F, even as I speak. > I thinkk the Leftt Coastt guys mustt be hording the sunshine.... > > > > ------------------------------------ > > List Sponsors - Dual Sport News: http://www.dualsportnews.com > Arrowhead Motorsports: http://www.arrowheadmotorsports.com > List FAQ courtesy of Chris Krok: http://www.bigcee.com/klr650faq.html > Member Map: http://groups.yahoo.com/group/DSN_KLR650/app/peoplemap/view/map > Group Apps: http://groups.yahoo.com/group/DSN_KLR650/grouplets/subscriptionsYahoo! Groups Links > > >