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Author Topic: Carb slides  (Read 1371 times)

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Offline Charlie

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Carb slides
« on: July 28, 2009, 09:26:12 AM »
Just a quick noobie question.
I have the carbs removed from my 75 CB550. I noticed that the slides do not close all the way.
In other words, if I use the flashlight bench sync method, light always comes thru on all 4 carbs.
The gap is around 3/16".
Shouldn't the slides close all the way (no light coming thru)?
If so, how do I fix this and what affect would the slides not closing all the way have on performance.
thanks
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'75 CB550
'76 CB750

Offline TwoTired

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Re: Carb slides
« Reply #1 on: July 28, 2009, 09:59:52 AM »
1- you have to back out the idle knob
2- the individual slide adjusters must be positioned to allow closure.
3 - the slide cutaway must face the inlet side of the carb throat.  Only the lowest part of the slide (facing the engine) should touch bottom.

If the slides truly stay open 3/16" the engine will race to rather high RPM.
 
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Lloyd... (SOHC4 #11 Original Mail List)
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Offline Charlie

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Re: Carb slides
« Reply #2 on: July 28, 2009, 01:03:29 PM »
Two Tired,
That would certainly explain some of my recent issues.
Thanks for the reply.
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'75 CB550
'76 CB750
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