hard starting, enrichener (choke) adjustment question

[Spot ON]

What would cause a bike to surge? __________________________________ Do you Yahoo!? Yahoo! Mail - Easier than ever with enhanced search. Learn more. http://info.mail.yahoo.com/mail_250

[Fred Hink]

A lean air/fuel mixture caused by lean jetting, partially blocked jets, or a plugged gas cap vent. Also you could feel surging if your chain is worn out. Worn chains will have tight and loose spots that will cause your bike to not run even. Fred http://www.arrowheadmotorsports.com http://www.angelfire.com/ut/moab/cmc.html

----- Original Message ----- From: "Spot ON" To: DSN_klr650@yahoogroups.com> Sent: Wednesday, December 22, 2004 10:37 AM Subject: [DSN_klr650] Surging? > > What would cause a bike to surge? >

[Pat (M)]

--- In DSN_klr650@yahoogroups.com, Spot ON wrote:

> What would cause a bike to surge? >

= = = = = = reply = = = = It could be fuel related, but you might want to check your chain adjustment first and look closely for wear. I began to experience a surge @ 3,000 rpm under no or low-load. My favorite local mech had me check the chain before messing with the carb. That was the problem, it was beginning to show tight spots. I replaced chain & sprockets - SMOOTH! Good luck! Pat M

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[JRC]

--- In DSN_klr650@yahoogroups.com, Spot ON wrote:

> What would cause a bike to surge?

A lean pilot circuit will cause surging, especially when rolling back on the throttle. Turning out the pilot mix screw will help (assuming that the pilot jet isn't plugged).

[rsanders30117]

Your surge description is a bit lacking. At what point are you surging? Typically KLR's are set too lean. Backing out on the idle mixture screw helps. I had to install a Dyno jet stage 1 to cure my A14 surge when cruising around 60 m/h. I recently developed another "surge" at 50 m/h. After tweaking everything around the carburetor, I seem to have corrected the problem by tightening the chain a bit. I'm having trouble connecting the chain looseness to the surge problem but this seems to have worked.

--- In DSN_klr650@yahoogroups.com, Spot ON wrote: > What would cause a bike to surge? > > > > __________________________________ > Do you Yahoo!? > Yahoo! Mail - Easier than ever with enhanced search. Learn more. > http://info.mail.yahoo.com/mail_250

[dooden]

Simple.. chain gets tight/loose spots, as it rotates around it gets tight (motor has to work a bit more) then loose (motor gets loose again) now this happens pretty rapid so what its really doing is breaking the harmony and giving a surge feeling. Try adjusting and cleaning your chain. Hint.. WD-40 or Walmart equal, side stand down, hammer holding up the right tip of the swingarm enough to hold the wheel off the ground, start spinning the wheel and squirting the chain, I aim the stream down at the chain on the rear sprocket and keep the wheel turning to help sling/drip the ickys off the chain. *Do not do this*, but I found bike when stable, in first or second gear, clutch in will make the wheel spin pretty good, also really helps clean the chain, cheapy aero spray really gets the ickys dripping, then I basically wash the front sprocket down at the same time. Let all the excess drip on carbboard under the chain circuit. Allow it some time to dry before riding or dust/ickys will stick. Dooden A15 Green Ape

--- In DSN_klr650@yahoogroups.com, "rsanders30117" wrote: > > Your surge description is a bit lacking. At what point are you > surging? Typically KLR's are set too lean. Backing out on the idle > mixture screw helps. I had to install a Dyno jet stage 1 to cure my > A14 surge when cruising around 60 m/h. I recently developed another > "surge" at 50 m/h. After tweaking everything around the carburetor, I > seem to have corrected the problem by tightening the chain a bit. I'm > having trouble connecting the chain looseness to the surge problem but > this seems to have worked. > > > --- In DSN_klr650@yahoogroups.com, Spot ON wrote: > > What would cause a bike to surge? > > > > > > > > __________________________________ > > Do you Yahoo!? > > Yahoo! Mail - Easier than ever with enhanced search. Learn more. > > http://info.mail.yahoo.com/mail_250

[Spot ON]

Dooden / Rsanders - Thanks for your replies. I don't clean my chain. Therefore it is pretty dirty and I've noticed making lots of noises, and a couple small surges in traffic the other day. I have wd40 and this other PJ something chain lube stuff that I use every once in awhile, but now I'm going to actually clean it. What's, cheapy aero spray ? Erik in San Diego --- Dooden wrote:

> > > Simple.. chain gets tight/loose spots, as it rotates > around it gets > tight (motor has to work a bit more) then loose > (motor gets loose > again) now this happens pretty rapid so what its > really doing is > breaking the harmony and giving a surge feeling. > > Try adjusting and cleaning your chain. Hint.. WD-40 > or Walmart equal, > side stand down, hammer holding up the right tip of > the swingarm > enough to hold the wheel off the ground, start > spinning the wheel and > squirting the chain, I aim the stream down at the > chain on the rear > sprocket and keep the wheel turning to help > sling/drip the ickys off > the chain. > > *Do not do this*, but I found bike when stable, in > first or second > gear, clutch in will make the wheel spin pretty > good, also really > helps clean the chain, cheapy aero spray really gets > the ickys > dripping, then I basically wash the front sprocket > down at the same > time. Let all the excess drip on carbboard under > the chain circuit. > > Allow it some time to dry before riding or > dust/ickys will stick. > > Dooden > A15 Green Ape > > > > --- In DSN_klr650@yahoogroups.com, "rsanders30117" > wrote: > > > > Your surge description is a bit lacking. At what > point are you > > surging? Typically KLR's are set too lean. > Backing out on the idle > > mixture screw helps. I had to install a Dyno jet > stage 1 to cure my > > A14 surge when cruising around 60 m/h. I recently > developed another > > "surge" at 50 m/h. After tweaking everything > around the carburetor, I > > seem to have corrected the problem by tightening > the chain a bit. I'm > > having trouble connecting the chain looseness to > the surge problem but > > this seems to have worked. > > > > > > --- In DSN_klr650@yahoogroups.com, Spot ON > wrote: > > > What would cause a bike to surge? > > > > > > > > > > > > __________________________________ > > > Do you Yahoo!? > > > Yahoo! Mail - Easier than ever with enhanced > search. Learn more. > > > http://info.mail.yahoo.com/mail_250 > > > > > > List sponsored by Dual Sport News at > www.dualsportnews.com > List FAQ courtesy of Chris Krok at: > www.bigcee.com/klr650faq.html > > > Yahoo! Groups Links > > > DSN_klr650-unsubscribe@yahoogroups.com > > > > > >

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[Eddie]

The MP cable is suspect. But, if the bike sat 5 years, just cleaning the two jets likely didn't clear up the carb issues. As my mechanic friend is fond of saying, "Think about it: What do the jets screw into?" Clogged pilot passages would make things very difficult in starting.The emulsification tube has some very small holes in it. Resist shooting aerosol carb cleaner in there as not all chemicals are kind to rubber parts like tiny o-rings, float needles, etc... It's worth the $$. But, stop by a Yamaha shop and get a bottle of their brand carb cleaner. Remove the carb, take off the diaphragm cover, diaphragm, float bowl, main and pilot jets, e-tube, slow mixture screw (count the turns to run it in lightly snug and then take it out) before soaking the main carb body in the cleaner. Rinse it thoroughly with water and blow dry with compressed air. Reassemble. Set your slow mix. screw out the # of turns you counted earlier. If the bike's stock, consider going out another 1/4 turn or so. For > [Original Message] > From: David Nichols > To: KLR Group DSN_KLR650@yahoogroups.com> > Date: 3/22/2012 8:44:09 AM > Subject: [DSN_KLR650] Hard starting, enrichener (choke) adjustment

[mark ward]

A tought on "surging", if the gascap vent is not fully open, could it be drawing a slight vacuum, enought to cause the RRRRrrrrrrrRRRRRrrrrrr "surging". OLD TREAD: whistling at vent cap. If it is totaly clear, on a hot day, would it still whistle? one symtom of partialy blocked vent? [Non-text portions of this message have been removed]

[Seekyrr]

I was good today for the longest time and then it came back bad , so that I was stalling out. I changed the petcock over to reserve and it fixed it so far. Crash