float level
- lgj069
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float level
15 Jun 2010 07:51
Good Day Folks, How does one set the float level for 28mm smooth bore mikuni carbs? Any help will be appreciated ... Thanx for your time and efforts. PEACE Larry
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- loudhvx
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Re: float level
15 Jun 2010 09:33
Not sure how to do that, but you do know this is the electrical forum? The mods will probably move your topics to the carburettor forum.

1981 KZ550 D1 gpz.
Kz550 valve train warning.
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Kz550 valve train warning.
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- lgj069
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- dshelly
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Re: float level
15 Jun 2010 15:24
Hi there , send me a PM I might be able to help you out.
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- Patton
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Re: float level
15 Jun 2010 16:00
lgj069 wrote:
By bending the tang on the float.
Good Fortune!
Good Day Folks, How does one set the float level for 28mm smooth bore mikuni carbs?....
By bending the tang on the float.
Good Fortune!

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- JMKZHI
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Re: float level
15 Jun 2010 18:01 - 15 Jun 2010 18:03
I'd check the fuel level in each carb first, then proceed w the float adjustment if necessary. I don't know the particulars of your 28s, but I'd guess that all Mikuni slide carbs are pretty much the same. Measure the fuel level by attaching clear tubing or a fuel level gauge to the carb bowl, then allow fuel to flow into the measuring device & check. Usually, the fuel level should be a certain number of mms
below the carb body: something like 3mm +/- 1mm.
If you have to adjust the floats (i.e., bend the tang), be careful about not mangling the bracket & tang. I set up a simple support for the float bracket & flexed the tang a certain number of times instead of actually bending it - visions of bending it too much one way then too much the other back n forth kinda popped into mind. Mine were only a mm or so off, though. You may have to do each float a number of times before getting it right; if so, it speeds things up to use only 1 or 2 bowl screws. I made a stand to hold the carbs; others use a bench vise.
If you have to adjust the floats (i.e., bend the tang), be careful about not mangling the bracket & tang. I set up a simple support for the float bracket & flexed the tang a certain number of times instead of actually bending it - visions of bending it too much one way then too much the other back n forth kinda popped into mind. Mine were only a mm or so off, though. You may have to do each float a number of times before getting it right; if so, it speeds things up to use only 1 or 2 bowl screws. I made a stand to hold the carbs; others use a bench vise.
Last edit: 15 Jun 2010 18:03 by JMKZHI.
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- lgj069
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