Paid way too much for a used chinese quad. Was running at the time of purchase. Kids drove it for a few minutes. Noticed smoke and found a gas leak. Bought new tank air filter cleaned carb and changed oil also adjusted the valves. A few problems i am having. It wants to take off at idle. The wheels spin so fast its dangerous the front brake will hold it but not good for the kids. Tried adjusting the carb down but wants to die by the time u get the wheels to slow down enough. The foot brake makes the engine die for some reason. Also once the engine gets nice and warm it seems to be harder to start once it dies. I think the lever on bottom left handle is a choke? It has an S and R on it with an arrow. Pretty sure it does not have reverse which i thought that lever was for. Ready to cut my losses and junk it but figured id give this a try. Any info is helpful thanks. BT152FSH 90601248 on the engine. I dont know anything else about it .

 

Seems like the centrifugal clutch isn't working right. Worth taking a look at it, though some of those Chinese "Honda clone" Automatics have an unusual clutch/gearbox set up and there doesn't seem to be anything on the net about rebuilding them.

 

If it dies when you hit the foot brake someone likely hooked up the wiring wrong. The brake switch wiring connector was probably plugged into the tether kill switch connector. Disconnect the brake wiring and try it.

 

I opened the clutch cover just to inspect and nothing appeared out of place. Oil i changed was pretty dirty tho but no debris under the cover. You think a new clutch might be the answer? Also the foot brake didnt kill it til i took the cover off. Tried reconnecting the brake light with no success ill look into that more.

 

If you don't use the bike on public roads, disconnect the brake light switch.

If it has a centrifugal clutch, take it apart, if it has a one way clutch in the centre, make sure that is fitted the right way round. Check shoe springs are attached properly and are not stretched.

 

Ill update once i have more time to inspect. Thanks for the info