Re: Carb issues I think! (1981 CB750K)

Posted by Cleric on
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Carb-issues-I-think-1981-CB750K-tp2921415p3032236.html

I rebuilt my carbs from the bottom up.  New air shut-off valves for all 4, new o-rings for the tubes connecting the carbs, cleaned all the jet that I just replaced for good measure and changed the gaskets and needle valves.  So...it seems to be running much better and I'm not having bogging I was having before, it runs smooth sitting in the garage.  The problems come when I'm riding it.  It seems great until I get to 4th and 5th gear, and it's like I have no power...I can't get over 60 unless I down shift to 3rd and run the RPM's up and then shift, but it still eventually drops down to about 60 mph.  I'm about ready to just buy me some Keihin CR Special carbs, but I"m not entirely sure it's a carb problem anymore.  Any suggestions or ideas?