Join Date: Jul 2009
Location: Spartanburg, SC
The JB weld seems to have worked....at least for now.
I pulled the carbs completely apart and checked over everything.... gaskets, o-rings, make sure nothing is missing. I installed the missing flat washer under the fuel mixture needle.
The carb is no longer leaking fuel out the bores. Unfortunately, I don't know what changed.... so I hung the carbs last night and filled them with fuel. If the fuel is still there tonight I'll call it good..... If not, I dunno what I'm going to do.
After JM2001 mentioned those things, I studied the carb to see HOW fuel flows:
It sits in the bowl, level regulated by the float. That seems to work, illustrated by the glass bowl picture above.
It leaves the bowl into the bottom chamber with the jets through three holes in the side of the bowl: Two low and one high hole in the center.
From there, the fuel looks like it sits in the jet's chamber until engine vacuum draws it out through the three possible passages... and idle post, mid-range jet, and high speed jet (my terminology may not be right).
Anyways, the point is: I can't figure out how the heck fuel is leaving the bowl/jet chamber and dripping down the bore of the carb and into the engine!
If it's holding fuel tonight, I'll install the carbs again. If not, who knows?
1992 VN750 dark blue / black - stock
Oversized front tire to correct speedo & improve handling
New stator and Vreg 4/11