Question about 1983 Honda CBX 550 F-F2

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CBX550 carburettor vacuum system

I have chopped my CBX550 and subsequently cant fit the original air box/filter on so have a reasonably good but bodged air filter system with 2 cone filters. Theres fuel spewing out of the 2 left carbs and overflow pipe and dont really know how to set up the vacuum system which i think might have something to do with it. Its running without the vacuum fuel tap too but ive been told that shouldnt make any difference.
This has been way to long off the road please help!! Simon

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Hi Simon,
Fuel over flowing from the carburators/over flow pipe means the float pins are not sealing off.
You will have to remove the carbs and the float bowls to check the pins and will have to adjust the floats too .
The vaccum fuel tap runs or rather allows fuel to pass by once the engine is running (thus creating vaccum) if you check around the inlate or the carburator mountings, in one of it you will find where to plug in tht pipe.
Hope this helps!

Posted on Jul 22, 2009

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Posted on Jan 02, 2017

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