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Old October 6th, 2019, 10:00 PM   #22
DannoXYZ
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Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011

Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
Quote:
Originally Posted by dodgerdad View Post
I began to strip off a few things off to access the valves in the morning and noticed the left airbox boot was not fully seated at the bottom. Coincidentally this is the same cylinder that appeared to be a bit lean when inspecting the plug. I moved the aibox as far forward as I could (not enough for my satisfaction) and re-seated both airbox boots to the carbs. By then my battery was dead.
Good job on fixing it!!!

But that doesn't really make any sense. Any pre-carb leaks will not affect fuel-metering or AFR. You can start and run the bike with no air-box even. Sure, it may have some mid-range stumbling issues, but it'll still start.

Could there have been leak at rubber manifold in between carb and head? And in process of shoving air-box back on carb, you closed up that other leak as well?
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