Subject: RE: Hot misfire
Author: Kevin Graf
Date: Aug 9, 2002, 7:41 AM
Post ID: 1710770180
If your timing checks out, check your header pipe connection. We just had a
thread about this not too long ago. You could be sucking air back into the
cyl. through the ex. Can cause a backfire. I know mine does.
Might want to look at pilot jet, valve adjustments and advance springs.
Process of elimination.
Kev
-----Original Message-----
From: Richard Arimoto [mailto:arim-@cemrc.org]
Sent: Friday, August 09, 2002 9:58 AM
To: Loopfram-@topica.com
Subject: Hot misfire
Loopsters: My Eldo periodically has a hot misfire problem on the left
cylinder only. The bike starts immediately after turning the key. Runs
fine during warm up. The problem arises after 15 or so minutes of
running on the highway, then getting into stop/go traffic. This does
not happen all the time. The problem is most likely to occur if I stop
the bike for a few minutes then restart it. There's a miss, the tach
swings kind of wildly and I get an occasional backfire. It seems to get
better if I get back on the highway and run it a bit.
I checked the plugs--they are nice and coffee colored, no heavy soot or
oil fouling. The plug wires look pretty new (I just got the bike this
spring) and seem to have a reasonable resistance (about 5K ohms). I'll
check the points gap and timing this weekend, but I set them not long
ago (the idle mixtures were set and the carbs balanced then, too).
Any suggestions for other things to check? I'm thinking a new coil
might be in order, but I don't see why that would only affect one
cylinder.
Rich A