Post by quawk on Oct 30, 2021 10:43:54 GMT -5
In an earlier post about not being able to get my bike to start, I mentioned that one of the problems I was having was fuel dripping from the carb when fuel was allowed to flow from a temporary tank. Upon closer inspection I noticed the fuel was dripping out of the accelerator pump fuel nozzle that protrudes into the secondary throat. Removed the carb again and had it on the bench to try to find why it was leaking. I removed the float bowl cover for re-inspection. After reading the post titled Carburetor, photographic carby strip down, I saw the the photos and mention of the float bowl overflow hoes in the cover. After looking more closely at my cover I discovered that the overflow side exit holes on the exterior of the cover were both plugged with what seemed like a hard packed dirt/mud. When I had it apart initially, this packed in material was so hard I thought they were factory plugs and wasn't until seeing the post about the little known overflow holes that I realized they should be open. After clearing these passages, reassembling the carb, and piping fuel to the carb on the bench, surprisingly it no longer leaked out the fuel nozzle. I realize that with these holes being plugged there was no vent to the fuel bowl, but still can't understand why this stopped the leak. Anyway, reinstalled on the bike with hopes that it might now start, but no such luck. At least that's one more problem eliminated. Just posted this so others who may be chasing a similar leak problem don't overlook this little item.
