[dsn_klr650] high speed miss

[Fred Hink]

[b]Mark,[/b]   [b]I have them in stock and it happens more than you imagine.[/b]   [b]A couple of big honkin washers will work.[/b]   [b]Fred[/b]

----- Original Message ----- [b]From:[/b] markw@... [b]To:[/b] DSN_klr650@egroups.com [b]Sent:[/b] Tuesday, June 27, 2000 1:48 PM [b]Subject:[/b] [DSN_klr650] chain adjuster plate? do other models fit klr? after changing tires the other night, the chain adjuster plate (on the back of the swingarm) ran away on my first commute to work, along with the two nuts and 1 washer that hold it on. anyone else lose one of these and discover that some other model also fit? i'm heading up to cyclesalvage this afternoon to see if i can rig something up without ordering the part new. mw Visit the KLR650 archives at http://www.listquest.com/lq/search.html?ln=klr650 Support Dual Sport News... dsneditor@... Let's keep this list SPAM free! Visit our site at http://www.egroups.com/group/DSN_klr650 To unsubscribe from this group, send an email to: DSN_klr650-unsubscribe@egroups.com

[Dennis Steinert]

I did the same thing a month ago. The part is $10 at the dealer. --------------- Dennis Steinert 1999 KLR650A dennis@... -----Original Message----- From: Weaver, Mark [mailto:markw@...] Sent: Tuesday, June 27, 2000 13:48 To: Klrlist (E-mail) Subject: [DSN_klr650] chain adjuster plate? do other models fit klr? after changing tires the other night, the chain adjuster plate (on the back of the swingarm) ran away on my first commute to work, along with the two nuts and 1 washer that hold it on. anyone else lose one of these and discover that some other model also fit? i'm heading up to cyclesalvage this afternoon to see if i can rig something up without ordering the part new. mw ------------------------------------------------------------------------ Whassuuup?! http://click.egroups.com/1/5996/6/_/911801/_/962140152/ ------------------------------------------------------------------------ Visit the KLR650 archives at http://www.listquest.com/lq/search.html?ln=klr650 Support Dual Sport News... dsneditor@... Let's keep this list SPAM free! Visit our site at http://www.egroups.com/group/DSN_klr650 To unsubscribe from this group, send an email to: DSN_klr650-unsubscribe@egroups.com

[Ted Palmer]

Mike Reaves wrote:

> > I read a few years ago about this miss on thumpers and now it's come > up here as well.

This topic never goes away, just rests for a while.

> As I remember there is a point (rpm) when the intake > valves close and the reflected pressure wave in the intake tract > will 'push' the charge back toward the carb. On the next intake cycle > the valves won't be open long enough to re-accelerate the intake > charge before the valves close again in effect starving the engine > for that cycle (causing the miss).

This would not be unique to thumpers. Any motor can have a flat spot under the right conditions. The longer the duration of the cam timing the more likely it is to find a flat spot, although an exhaust system designed for peak power is a common bolt-on flatspot generator.

> As I remember it's a function of > tract lenght, carb size, rpm and tract diameter.

Also affected by the exhaust system dimensions.

> I think mine happens > around 4500-4700 rpm (70mph). Anything faster or slower the machine > runs great, but right there on level ground and steady throttle I can > feel this miss.

A small change to a carby setting might eliminate this, like float level, main jet or needle, or maybe a change in the exhaust system. Symptoms of overlean running are not unknown on more recent bikes. Most recent vehicles are set up for mixtures a bit on the lean side when on cruise. A small variation in the carby could send the mix a bit too lean. Mister_T