devildrums
XS650 Enthusiast
Hey guys, could definitely use a little assistance with my 77D. I recently had to change out my carbs and went with VM34s, and as many different people i have seen with similar posts, kind of expected it to come nearly ready to roll when I ordered them for a specific year bike. After finding out how wrong i was, I have gone through all sorts of jet changes and adjustments and am looking for a little fine tuning advice.
Currently running:
22.5 - Pilot
6F9 - Jet needle, is in #4 groove
P-6 - Needle jet
2.0 - Throttle slide
180 - Main.
Had a 185 main and it started out smooth, but it was spitting at 3500" rpms, so i switched out to 180. That seemed to fix that issue, but then developed a backfire out of the right carb. I tried tweaking the air screw a little, since it was the most basic, but had no success. During this transition I have done many different jet changes and can't seem to get everything to run right.
Any advice on what direction to go in would be greatly appreciated, as it seems I keep fixing one problem while creating a new one. Thanks.
Currently running:
22.5 - Pilot
6F9 - Jet needle, is in #4 groove
P-6 - Needle jet
2.0 - Throttle slide
180 - Main.
Had a 185 main and it started out smooth, but it was spitting at 3500" rpms, so i switched out to 180. That seemed to fix that issue, but then developed a backfire out of the right carb. I tried tweaking the air screw a little, since it was the most basic, but had no success. During this transition I have done many different jet changes and can't seem to get everything to run right.
Any advice on what direction to go in would be greatly appreciated, as it seems I keep fixing one problem while creating a new one. Thanks.
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