Dave,
It sounds like you there is a problem with the enricher cable &
possibly the mounting of the enricher (choke). I disconnected
the cable at the handlebar end of my A9 & measured how much the
inner cable extended beyond the outer cable housing, about 1".
When properly adjusted (at the handlebar end), the outer cable
should have 1/8" play (with a light pull). My cable adjuster is
near the minimal setting to get the proper free-play. The
maximum free-play adjustment range is about 1/2". I mention
this because if your's is not inline with these figures, this
could be part of the problem.
You appear to have a minor 'lean' condition, which could cause
the rough idle & backfire. If the enricher was not properly
installed, there may be a minor air leak causing these problems.
Remove & re-install the enricher & see if this clears up the
problem. The low-speed pilot air screw should be about 2 turns
out from the fully seated position. If the factory plug is
covering the air screw, it probably has not been changed. The
air screw is on the bottom of the carb, behind the float bowl,
on the carb's underside, directly above the starter motor.
If the air screw is accessible (ie, the plug is removed),
lightly turn the screw (clockwise, as viewed from below) until
the screw is seated lightly & then back it out 2 full turns.
(NOTE: be sure to count how many turns it takes to seat the
screw.) This should put you in the ballbark for the idle
mixture setting. If you're not familiar with your carb, go to:
http://www.dualsport.org/
click on the KLR650 logo, go to the bottom of the page & click
on the
'Keihin CVK40 - A complete and comprehensive Carburetor Primer'
link.
Good luck, let us know how you make out.
Professor '95 KLR650 A9 Federal Way, Wa. [USA]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> "Lou B. DeSimone" wrote:
> >
> > If you are replacing the cable, make sure you put the rubbed
nipple back on
> > before you attach the enricher to the cable. It is not included
on
the new
> > cable.
> >
> > Lou '97
--- David Kleber wrote:
> Well, I just did the change out, and what a good tip you
provided. Too bad I forgot to do it, though (doughhhh!).
Anyway, that minor detail aside, I got everything back
together and the choke (enricher) cable is working fine.
The only problem is, I think the carb was tuned with the
cable frozen and the enricher slightly engaged. Now that
I have a working cable, the bike's not idling as well.
To keep it from stalling, I had to set up the idle a bit.
I also noticed some minor backfiring which seems to subside
if I run with the choke slightly on. The cable adjustement
at the lever is almost all the way out, so I have nowhere
to go there.
> Any suggestions?
>
> -Dave
> KLR 650 A7