F2 runs out of fuel at full throttle

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Jun 22, 2007 | 03:09 AM

#11

stampederunner

Joined: Jun 2007

Posts: 24

Likes: 0

RE: F2 runs out of fuel at full throttle

Quote:

ORIGINAL: labattlite

i just bought a 94 F2 with a similar, self-induced problem. Long story short, the vacuum tube going to the fuel petcock was cracked and sucking in air...lots of it. replaced the tube and bike has been running smoothly ever since.

before you go ripping the carbs apart i'd check that as well as the fuel lines.

Hmmm..... that has wondering about something. I just got my bike recently and took the tank off to change the filter. When I removed the tank the only line going to the petcock was the fuel hose. I didn't really look at the petcock that close, but where does the vacuum line go? And where does it get vacuum from?

Jun 22, 2007 | 12:38 PM

#12

woo545

Senior Member

Joined: Jun 2007

Posts: 2,680

Likes: 1

From: PA

RE: F2 runs out of fuel at full throttle

The vacuum hose comes from the left side of the carbs and leads to a locations slightly to the left of where the fuel line goes on the tank. The bike will not run with out this. (also a neat way of draining your gas if you hook up a vacuum too this). I proved a link on this forum to a location that will let you download the service manual. It illustrates it nicely.