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Author Topic: Leaky bowl  (Read 398 times)

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Offline Ereyer

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Leaky bowl
« on: July 13, 2016, 04:58:49 AM »
Hello all:
Attached carbs after rebuilding them and carb two leaks like a sieve. What are the float level specs on keihin carbs for a cb 550f (1975)?
Eric
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Offline greenjeans

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Re: Leaky bowl
« Reply #1 on: July 13, 2016, 05:20:57 AM »
More likely it's the float needle and seat. 
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Yep, I'm the kid that figured out how to put things back together...eventually.

Offline CBGhia

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Re: Leaky bowl
« Reply #2 on: July 13, 2016, 05:33:32 AM »
Did you try tapping the bowls with a screwdriver handle?

Pretty sure the manual says 22mm for the early 550.
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CB550 Cafe, GL1000, Buell Ulysses
Quote from: dave500 on February 14, 2014, 03:53:33 AM
if you dont trial spin the camshaft in the head and cover you are a novice,with no natural mechanical appitude,destined for destruction.
"The cleaner the dipstick, the closer to God." -Rev. Horton Heat
“Faster, Faster, until the thrill of speed overcomes the fear of death.”  - Hunter S. Thompson

Offline Ereyer

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Re: Leaky bowl
« Reply #3 on: July 13, 2016, 05:49:49 AM »
Meh. I'm mad at myself. I installed new needles and seats. I will try knocking on the float bowl first before tearing it out again.
Thanks!
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Offline flybox1

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Re: Leaky bowl
« Reply #4 on: July 13, 2016, 06:45:35 AM »
Quote from: Ereyer on July 13, 2016, 05:49:49 AM
Meh. I'm mad at myself. I installed new needles and seats. I will try knocking on the float bowl first before tearing it out again.
Thanks!
Please verify your fuel height using the clear tube test.  Aftermarket float valve size often differs from OEM as seen below from the carbs I recently worked on.  Your stock float height is just a starting point.  Adjust to achieve the proper fuel level.



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'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

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1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
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