Hi evryone Iam having a problem with Honda 550 Kei Hin carbs Ive rebuilt the carbs but Iam stuck. This relates to choke lever on left side oh #1 that interconnects through all carbs via linkage from throttle plate to throttle plate. It seems that Ive put things together correct but each carb has a spring on this connecting linkage and the tension on that coil spring closes the throttle valve leaving the carbs in choke position. I had this 75 Honda and sold it in 86 I remember having to lift the choke lever on left side to start now it does it by itself .Throttle plates are closed without me applying choke. When I look in the manual the pictures show a guy handling the carb but the choke lever is pointing straight up and the valve plate is horizontal or level with the carb body. Ive talked to a lot of mechanics including the dealer where it was originally bought and even they were not sure they said the dont see many old bikes....Big help that was I guess well just give up hand writing because its 35 years old to....Somebody please help Iam at the end of my rope...Thanks very much sinc. RobertRanderson
For a 550/4 right? Have you adjusted the synching linkage for your butterflys? Screwdriver width at closed throttle so it doesn't actuate choke? I think that's how they operate, I worked on 750 ones and that spring between 2/3 for throttle is a pita imo.
Pictures would of course be beneficial.
Did you separate the banks on your rebuild?
I may not have a lot to say but it doesn't mean I don't listen.
I know it's been a while since your original post,but if you get stuck with something on that 550 , join sohc4.net, it's for honda 4's , download a manual, there is tons of information on the site. Not that you couldn't get the right information here, but those members eat drink and crap 550's, I think you'll find what you need there.