Flooding on angles (1 Viewer)

Joined
Jun 11, 2004
Messages
1,042
Location
high desert, ca
The post about the flying needle valve got me thinking about a recent problem.

My cruiser will sometimes flood when it gets at very extreme vertical angles. Not average driving, just on that occasional super steep obstacle. Is this strictly a float issue? The carb is an old small window, single barrell D40 aisin without any solenoids. Using FSM specs for the float, fuel maybe goes 1/4 of the way up the sight glass. I was told to instead adjust it to where the fuel will go 1/2 way up the sight glass, so this is the way it is currently setup. Quite a bit out of specs. Is this my problemo, or is near vertical an inherent problem for this model carb?
 

spotcruiser

Geezer
SILVER Star
Joined
Jan 30, 2003
Messages
3,815
Location
Western WA
 
 
 
Send a pm to fj40jim. He can answer your question, if anybody can. Usually, aisin carbs are pretty good at angles. I'm not too sure about the old single-barrel carbs, though. But any carb has trouble with extreme angles. At some point, you need fuel injection to run well at extreme angles.
 
Joined
Jul 26, 2003
Messages
685
Location
North Jersey
I was able to replace my needle and seat with one that has a heavy spring.That solved my problem.However this is on a Holley carb.Jim C. should certainly be able to help.
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Similar threads

Top Bottom