klr carb- running rich

[dooden]

--- In DSN_KLR650@yahoogroups.com, "Michael Frederick" wrote:

> > do you screw the pilot screw in or out to lean the mixture- any other > way to lean the mixture? > > MFF

In = leaner - Out = Richer on the Pilot Circuit, 2 to 2.5 turns out from a gentle seat is pretty close to start with. (OEM'd with a steel cap/plug on bottom of carb) Finding the sweet spot is a bit tricker, but easy, with a tool, engine warmed and idling, start turning screw in until engine idle changes STOP, now turn out back to good idle and keep going until it gets to another idle change STOP... back in to half way and that is the sweet spot. Dooden A15 Green Ape

[Alexander Hopkins]

All, New 2 stroker here converting to thumper world. I have a 2000 KLR650 with 3500 miles that started running poorly after initial start-up from winter storage. Seems to run really rich and gas pouring out of clear vent pipe on side of carb. Have cleaned carb and tank. Planning to rebuild petcock after receipt of assorted rubber bits. This whole diaphragm thing is new to me. Any ideas. Thanks, Sandy --------------------------------- Sucker-punch spam with award-winning protection. Try the free Yahoo! Mail Beta. [Non-text portions of this message have been removed]

[dooden]

Sounds like a sticky float valve to me.. Try umm... tapping carb bottom/side with end of screwdriver (not the pointly end, but the handle end). Might also drain the float bowl, right side bottom you will see a nipple, connect a small hose to catch fuel, right above that there is a screw you back out to open the drain. Recommend catching in a glass jar or something to see what drains out. Petcock will feed the carb fuel if the floats are holding the needle open. (Providing there is a vacuum supplied to petcock) Myself I like using SeaFoam as a cleaner for fuel systems. If you have the time, might rotate carb to expose the bottom and remove the bowl and make sure the floats are moving and not cracked or something and full of fuel. CAUTION... the choke (ok ok enricher) on the shifter side of carb is easy to break when rotating carb. Myself I removed the choke lever on the handlebar to give it slack and made sure all moved without breaking. Info/Ref: http://www.bigcee.com/klr650faq.html Hope all works out. Dooden A15 Green Ape --- In DSN_KLR650@yahoogroups.com, Alexander Hopkins wrote:

> > All, > > New 2 stroker here converting to thumper world. > I have a 2000 KLR650 with 3500 miles that started running poorly

after initial start-up from winter storage. Seems to run really rich and gas pouring out of clear vent pipe on side of carb. Have cleaned carb and tank. Planning to rebuild petcock after receipt of assorted rubber bits. This whole diaphragm thing is new to me.

> Any ideas. > > Thanks, > > Sandy > > > --------------------------------- > Sucker-punch spam with award-winning protection. > Try the free Yahoo! Mail Beta. > > [Non-text portions of this message have been removed] >

[David Farrell]

You mention diaphram. I do know if the diaphram on the carb needs replaced that the Kawasaki part is very expensive. Past threads on this site have stated that the diaphram out of a Harley carb is an exact fit at a fraction of the cost. If you need more information, I can go through old notes and try to find this info. David Farrell --- Alexander Hopkins wrote:

> All, > > New 2 stroker here converting to thumper world. > I have a 2000 KLR650 with 3500 miles that started > running poorly after initial start-up from winter > storage. Seems to run really rich and gas pouring > out of clear vent pipe on side of carb. Have cleaned > carb and tank. Planning to rebuild petcock after > receipt of assorted rubber bits. This whole > diaphragm thing is new to me. > Any ideas. > > Thanks, > > Sandy > > > --------------------------------- > Sucker-punch spam with award-winning protection. > Try the free Yahoo! Mail Beta. > > [Non-text portions of this message have been > removed] > >

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[C L Cooper]

Sandy, Sounds like you're on the right track. My '01 did the same thing when I got it. The previous owner had paid a shop just before I bought it to clean the carb. They didn't put the o-ring debris and no fuel filter together though. Mine resulted in a bunch of expensive problems. So, here's what I would do... Replace o-rings in the petcock. I put a BigCee diaphragm eliminator in mine. Eliminates the possibility of running the engine too lean because the diaphragm has gone bad. Make sure there's a fuel filter between tank and carb. A small clear one is cheap and easy. Clean carb - You may be able to get away with loosening carb manifold clamps - make sure you unhook the choke cable and throttle cable assy - then rotate the carb while still in the manifolds. Remove the bowl. Remove float and needle. Clean. Reassamble. Change oil and filter, just in case fuel ran down past the rings. Chuck C San Diego, CA

On 3/7/07, Alexander Hopkins wrote: > > All, > > New 2 stroker here converting to thumper world. > I have a 2000 KLR650 with 3500 miles that started running poorly after > initial start-up from winter storage. Seems to run really rich and gas > pouring out of clear vent pipe on side of carb. Have cleaned carb and tank. > Planning to rebuild petcock after receipt of assorted rubber bits. This > whole diaphragm thing is new to me. > Any ideas. > > Thanks, > > Sandy > > --------------------------------- > Sucker-punch spam with award-winning protection. > Try the free Yahoo! Mail Beta. > > [Non-text portions of this message have been removed] > > > [Non-text portions of this message have been removed]

[C L Cooper]

Sandy, Sounds like you're on the right track. My '01 did the same thing when I got it. The previous owner had paid a shop just before I bought it to clean the carb. They didn't put the o-ring debris and no fuel filter together though. Mine resulted in a bunch of expensive problems. So, here's what I would do... Replace o-rings in the petcock. I put a BigCee diaphragm eliminator in mine. Eliminates the possibility of running the engine too lean because the diaphragm has gone bad. Make sure there's a fuel filter between tank and carb. A small clear one is cheap and easy. Clean carb - You may be able to get away with loosening carb manifold clamps - make sure you unhook the choke cable and throttle cable assy - then rotate the carb while still in the manifolds. Remove the bowl. Remove float and needle. Clean. Reassamble. Change oil and filter, just in case fuel ran down past the rings. Chuck C San Diego, CA

On 3/7/07, Alexander Hopkins wrote: > > All, > > New 2 stroker here converting to thumper world. > I have a 2000 KLR650 with 3500 miles that started running poorly after > initial start-up from winter storage. Seems to run really rich and gas > pouring out of clear vent pipe on side of carb. Have cleaned carb and tank. > Planning to rebuild petcock after receipt of assorted rubber bits. This > whole diaphragm thing is new to me. > Any ideas. > > Thanks, > > Sandy > > --------------------------------- > Sucker-punch spam with award-winning protection. > Try the free Yahoo! Mail Beta. > > [Non-text portions of this message have been removed] > > > [Non-text portions of this message have been removed]