Join Date: Sep 2013
Location: Laguna Beach, CA
Needle Shims not laying flat causing problem
I have a Vstar 1100 Classic with Hard Krome pipes and Kurykyan Hyper charger.
I decided to re-jet the carb due to popping, backfiring. I replaced the main jets to 125 front, 122.5 back, replaced pilot air bleeds to 1.2 as per instructions.
Assembled the carb and I still get the same symptoms.
The instructions also called for an extra .020 shim to raise the needle.
Now here's my problem. As I look into the throttle valve assembly I notice a small protruding notch at the very bottom of the valve assembly where the shims sit. One shim can actually bypass that notch because it's small in diameter, however the second shim is a little bigger in diameter so the notch does not allow the shim to sit flat on top of the other shim.
I'm sure the shim sitting unevenly has to be a problem...
Has anybody else noticed this? Is my second shim too big, do I need to get another shim or are both shims supposed to sit above the notch?