Posted by Jim on May 03, 2000 at 05:13:49:
In Reply to: Carb. Ajustmet Help! posted by D.C. on May 03, 2000 at 02:33:37:
DC,
Have you removed the white spacer and adjusted the mixture screw? If not, see a post by "Garret Barnwell" about 15 or so down from yours on the main board. These two mods seem to cut out most of the lean problems that most of us run into (hot engine, rapidly yellowing/bluing pipes, backfire, etc...), and they also seem to add throttle response and help top end performance. I say "most" because some folks have opined that these are bad things, but it seems to me that the vast majority of folks on this site agree that they are good things. FYI, I have a HD pipe with the baffle punched (so I'm almost running a "straight" pipe), and these mods have cut out almost all backfire and I'm very pleased with performance (I did a 120 mile ride the other day at a comfortable- power to spare- 80 mph and got about 41 miles per gallon).
If you start doing things that really increase airflow (decrease backpressure with the a less restrictive pipe, and then add a less restrictive air filter arrangement to get more air into the engine) you'll probably have to re-jet (which is a fancy term for "screw a larger diameter fuel jet into you carb"). If you aren't very comfortable doing the space and screw adjustments, I'd get some help before you start messing with the jet size.
Either way, go at it easy, a size at a time. Remember, the fun part is the road test after each tweak!
Hope this helped...
-KTRSD
-Jim