« previous next »
Pages: [1]   Go Down

Author Topic: Float level too high - symptoms?  (Read 7469 times)

0 Members and 1 Guest are viewing this topic.

Offline Tugboat

  • Puppet
  • Master
  • *****
  • Posts: 1,682
  • '76 CB750F/'76 KZ400/'74 TL125/'81 C70
    • PseudoMoto
Float level too high - symptoms?
« on: September 26, 2012, 08:46:20 PM »
Like the title says - what are the symptoms of float levels being set too high?
Logged
If it's worth doing, it's worth doing twice.

Offline 70cbk0

  • Hot Shot
  • ***
  • Posts: 281
Re: Float level too high - symptoms?
« Reply #1 on: September 26, 2012, 10:36:42 PM »
Judging by what I went through......running too rich at idle, fouling plugs when running around town. The bike ran pretty good at higher revs, but sputtered a bit off of idle.
Logged
1970 CB 750K0
1969 CB 750K0
1966 CB77 Superhawk
1982 Honda XR200R

Offline Xnavylfr

  • Expert
  • ****
  • Posts: 1,102
  • Beers, Babes and bikes since 1965
Re: Float level too high - symptoms?
« Reply #2 on: September 27, 2012, 06:36:57 AM »
=1 on what cbk said ,,also you will have gas running out of the overflows tubes hooked to the bottom of each carb.


Xnavylfr(CHUCK)
Logged

Offline tlbranth

  • Expert
  • ****
  • Posts: 1,339
Re: Float level too high - symptoms?
« Reply #3 on: September 27, 2012, 11:53:15 AM »
Burbling when cruising, flat spot when opening throttle, black plugs, poor mileage.
Logged
1970 CB750 K0
1975 GL1000
1999 GL1500
2002 VT750-CDA ACE - Momma's bike
Terry

Offline bjatwood

  • I never claimed to be an
  • Expert
  • ****
  • Posts: 976
  • 1973 CB750-K3
    • Minbikers Proboards
Re: Float level too high - symptoms?
« Reply #4 on: September 27, 2012, 12:27:09 PM »
+3 on the above comments except that gas doesn't always come out the overflow. I knew my bike's floats were "off" when I would be riding it and turn off the petcock and the bike would immediately smooth out and run like a much different beast.
Logged
Brian
#24193

I believe that the Finest things are the most thoughtfully made, not the most expensive!
http://minibikers.proboards.com/

Offline flybox1

  • My wife thinks I'm a
  • Really Old Timer ...
  • *******
  • Posts: 13,519
Re: Float level too high - symptoms?
« Reply #5 on: September 27, 2012, 01:19:13 PM »
Quote from: bjatwood on September 27, 2012, 12:27:09 PM
+3 on the above comments except that gas doesn't always come out the overflow. I knew my bike's floats were "off" when I would be riding it and turn off the petcock and the bike would immediately smooth out and run like a much different beast.
+1 
1mm in float height can make a big difference inside the bowl. 

your original question was about float levels being to high. 
floats set too high, or set so that fuel levels are too high?
please clarify as they are opposites. 
we've all assumed you meant the fuel level was too high based on our answers ::)

Logged
'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

DH

  • Guest
Re: Float level too high - symptoms?
« Reply #6 on: September 27, 2012, 08:37:53 PM »
Sometimes if the levels are too high, gas can go in the intakes
and airbox. It can occur very slowly and cause a no start condition.
Sometimes it can be bad enough to the point that the execess
fuel dilutes the engine oil, which obviously aint good either.
Best to use the clear tube method when checking actual fuel
height in the bowls....and +1 on whats already been mentioned.
Logged
Pages: [1]   Go Up
« previous next »
 

;