jtrout7
1973 CB350F
I bought a '73 cb350F with 7500 original miles on it / engine serial #1004889. The bike won't go above 70 mph. On a similar note after running at 60 mph, for less than two minutes, it begins to pop (fire coming out of the pipe) and it loses power. I have to drop to about 50 mph for it to run normal. Can anyone suggest what size jets and air/fuel mixture setting to use for straight pipes or if I'm even headed down the right path? The bike is pictured below to give you an idea about the pipes. I have #75 jets in it now and the mixture screw at 1 ½ turns out. Also, the throttle lags bad going back to idle when I let go of it. I bought it about 2 months and everything has run fine until I tried to take it above 50 mph.
Thanks in advance for the help.
Thanks in advance for the help.