SOHC.co.uk Forums > CB500/550

Calling carb experts . . .

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StPeter:
I've cured one incontinent carb and am now on to the finer points of getting them to work as a team . . . My initial problem is understanding what all the pipes are for!
Two feed pipes from the tank go to the connection(s) circled on the attached. The bunch of four overflow pipes from the float bowls. I understand these. What are the extra two (overflow?) pipes which attach to the inboard sides of Nos 2&3 (arrowed on the attachment)?
The were routed with the float bowl overflows but I havent found a mention of them in the manuals!

LesterPiglet:
They are just vents. Mine don't have any tubes on them at all.
Missing an attachment btw. :)

Bryanj:
The two vents normaly go upwards and back over the air cleaner box

StPeter:
Thanks, guys. Mine were poked down behind the engine with the float bow overflows. I guess it doesn't make any difference!

StPeter:
Supplementary question . . .
I'm coming to the conclusion that the carbs are going to have to be stripped and given a proper going over. They're a bit "cosmetically challenged" and would benefit from a cleanup but I don't think that I'm going to end up with something like this !

It makes sense to me to replace the jets and needles along with the various O-rings (or am I being a bit precious?) but there seems to be a bit of a spread on the price of the refurb sets.
Are these worth a punt or would I be better sticking to Keyster kits at twice the price.

All advice gratefully received!

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