Honda sl70 dies when given throttle

J

Jonathan TR

New Member
Hey I have an interesting situation. My 1971 Honda sl70 has been freshly rebuilt on its head piston cdi and carburetor. Everything is oem
Spec except for the cdi. Anyways I can start the bike without choke only. I can’t get the bike to move on it’s own power by rolling it down my drive way and dropping the clutch. And it only moves 3 feet and then when I give it gas it bogs and dies but barely any gas bogs it down. Someone please help I’m running out of theories!!!!
 
J

Jonathan TR

New Member
NWMissouriCT90K1 said:
Sounds like a plugged carburetor? I haven't worked a lot with single barrels that Would be the first thing I would check.
Click to expand...
I’ve cleaned that carburetor with both air and carb cleaner 4 separate times. I don’t believe it’s the carb it might be a vacuum seal problem but I couldn’t find a leak.
 
NWMissouriCT90K1

NWMissouriCT90K1

Member
I remember using lp gas to find vacuum leaks. Not sure if that mite help in this case or not. It would take a small orifice with Simi low pressure I would think.
 
D

data_guy

New Member
I had a similar issue with a CT70, although it was all stock. Turned out even though it had spark, it wasn't enough. New points didn't fix it, but swapping the stator assembly did the trick. Food for thought...I've seen electrical issues act like carb issues.
 
Old Guy Too Many Bikes

Old Guy Too Many Bikes

Well-Known Member
If the carb's getting gas, it's probably not a carb issue. Usually a carb issue will be one problem, won't idle, won't take full throttle, won't take part throttle, bogs, but then picks up, but it should run and go. I'd say it's more likely electrical, possibly your CDI. Do you have the correct coil, and is it wired correctly? If possible, can you put back the magneto?
 
Top