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rpm too low?

Posted: Sun Dec 05, 2004 7:11 am
by mksilverstein
I just bought a 2004 KLR650 with 1200 miles on it and went straight down to some tight singletrack trails that I usually ride my mountain bike on. I found that the gearing was a bit high for that sort of activity, fun though it was, and was wondering whether I was lugging it at too low an RPM, especially on the climbs (especially with my wife on back). Am I damaging the engine by nailing the gas at 1.5-2.5K RPM? It sounded like it was straining but it accelerated out of it anyway. Thanks, Mike

rpm too low?

Posted: Sun Dec 05, 2004 9:21 am
by Rodney Copeland
Mine makes a hellova racket if I nail it under 2K. It doesn't sound like it's very good to me. If you like the slow stuff, get a 14 toother for the front. I think the auto compression relief actuates and opens exhaust valve not far below 1K. Rod,,,hearin the CRACK,CRACK of your lugging now and gives him chills! --- In DSN_klr650@yahoogroups.com, "mksilverstein" wrote:
> > I just bought a 2004 KLR650 with 1200 miles on it and went straight > down to some tight singletrack trails that I usually ride my > mountain bike on. I found that the gearing was a bit high for that > sort of activity, fun though it was, and was wondering whether I
was
> lugging it at too low an RPM, especially on the climbs (especially > with my wife on back). Am I damaging the engine by nailing the gas > at 1.5-2.5K RPM? It sounded like it was straining but it
accelerated
> out of it anyway. > > Thanks, Mike

rpm too low?

Posted: Sun Dec 05, 2004 10:45 am
by Stanford Johnsey
I don't know about damage but the KLR motor doesn't like to run below 2,500 and slamming open the throttle just agrivates the problem. Many folks who spend a lot of time in the dirt swap the 15T front sprocket for a 14T for about $20. You musta been goin' awful slow because with the granny first on the KLR 3,000 rpm only gets about 10 mph. mksilverstein wrote: I just bought a 2004 KLR650 with 1200 miles on it and went straight down to some tight singletrack trails that I usually ride my mountain bike on. I found that the gearing was a bit high for that sort of activity, fun though it was, and was wondering whether I was lugging it at too low an RPM, especially on the climbs (especially with my wife on back). Am I damaging the engine by nailing the gas at 1.5-2.5K RPM? It sounded like it was straining but it accelerated out of it anyway. Thanks, Mike 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 __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com [Non-text portions of this message have been removed]

rpm too low?

Posted: Sun Dec 05, 2004 3:00 pm
by GMcKinney
Stanford, Yes, some of us are going real slow. Extreme woods riding where you're dodging trees and going lock to lock to get around them. I swapped the front for a 14t sprocket and found myself having to slip the clutch to keep the rpms around 3000 in the woods riding I do. Other than fire roads to get from one area to another, I never get out of second gear. I just bought a 47T rear sprocket from throttlehead.com to replace the stock 43t. I haven't got it installed yet, so I don't know how that will affect the rpm's vs. speed. Greg '95 A9 -----Original Message----- From: Stanford Johnsey [mailto:swjohnsey666@...] Sent: Sunday, December 05, 2004 7:56 AM To: mksilverstein; DSN_klr650@yahoogroups.com Subject: Re: [DSN_klr650] RPM too low? I don't know about damage but the KLR motor doesn't like to run below 2,500 and slamming open the throttle just agrivates the problem. Many folks who spend a lot of time in the dirt swap the 15T front sprocket for a 14T for about $20. You musta been goin' awful slow because with the granny first on the KLR 3,000 rpm only gets about 10 mph. mksilverstein wrote: I just bought a 2004 KLR650 with 1200 miles on it and went straight down to some tight singletrack trails that I usually ride my mountain bike on. I found that the gearing was a bit high for that sort of activity, fun though it was, and was wondering whether I was lugging it at too low an RPM, especially on the climbs (especially with my wife on back). Am I damaging the engine by nailing the gas at 1.5-2.5K RPM? It sounded like it was straining but it accelerated out of it anyway. Thanks, Mike 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 __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com [Non-text portions of this message have been removed] 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

rpm too low?

Posted: Sun Dec 05, 2004 4:56 pm
by Guest
Thanks: What I understand now from this group's feedback is that while I may have observed that the bike seems perfectly willing to rev down low and come back swinging I should really keep revs over 2500 RPM, feel free to slip the clutch if necessary and swap out the sprocket if this becomes a habit. Yes I was going very slow, as I was picking my way through some roots and rocks and mud in a gulley. I can clear that section of the trail much faster on my mountain bike (28 lb vehicle beats 350 lb vehicle in the tight stuff regardless of the power source, at least until I get tired). Anyway the speedometer on my nearly new, stock A18 KLR reads in the neighborhood of 1800 RPM @ 10 MPH, not 3200. Perhaps you have different gearing? Mike
> -----Original Message----- > From: Stanford Johnsey [mailto:swjohnsey666@...] > Sent: Sunday, December 05, 2004 8:56 AM > To: mksilverstein; DSN_klr650@yahoogroups.com > Subject: Re: [DSN_klr650] RPM too low? > > > > > I don't know about damage but the KLR motor doesn't like to > run below 2,500 and slamming open the throttle just agrivates > the problem. Many folks who spend a lot of time in the dirt > swap the 15T front sprocket for a 14T for about $20. You > musta been goin' awful slow because with the granny first on > the KLR 3,000 rpm only gets about 10 mph. > > mksilverstein wrote: > > I just bought a 2004 KLR650 with 1200 miles on it and went straight > down to some tight singletrack trails that I usually ride my > mountain bike on. I found that the gearing was a bit high for that > sort of activity, fun though it was, and was wondering whether I was > lugging it at too low an RPM, especially on the climbs (especially > with my wife on back). Am I damaging the engine by nailing the gas > at 1.5-2.5K RPM? It sounded like it was straining but it accelerated > out of it anyway. > > Thanks, Mike > >
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shim needle stock klr650

Posted: Sun Dec 05, 2004 11:43 pm
by celticnomads
is it worth it to shim needle,say .020" or will it just suck more gas and be too rich?