Author Topic: 1978 cb550k uni pods and 4to1 mac exaust carb tuning ....help!!!  (Read 487 times)

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Offline screemn2

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im just about ready to light fire to the bike that i have many hours in restoring ....the bike is all stock except for the uni pods and 4 in 1 mac exhaust system...ive rebuilt the carbs putting a 105 main jet in the carbs needle in stock position and have tried nearly all different air idle screw settings....timing is to spec and valve lash is to spec ...the bike will start first kick as long as you are holding the choke closed or nearly closed ...and will only stay running  while fluttering the choke a little...i have all the floats set at 13mm measured from the bottom of the float without the spring compressing ...im just about ready to give up i dont know what else to do as this bike is not even close to being drivable and i truly believe it should be...the carbs are the pd46c...please anyone with any info on what i can do to at least get it running to be able to fine tune it would be greatly appreciated ......help please!!!! :'(