Morning and Merry Christmas! Just gave our son his first quad (Boreem 110cc w/Loncin motor). Bought it used. It ran great at first but now we're having throttle issues.

It's super erratic. Sometimes when you give it full throttle is seems to be getting choked, but then when you let go it's like it's getting full throttle. Or you give it full throttle it barely keeps it from stalling, and when you let off it stalls. OR if you're not touching the throttle at ALL, it suddenly gets full throttle and you have to throw it in neutral or hit the kill switch to stop it. Is this a throttle cable problem? Or could it just be the carb needing a good cleaning? Seems weird that it get's little to no gas sometimes, then suddenly at random times gets what seems to be full gas. Sorry if this is a stupid question, I'm new here!

Any help would be greatly appreciated!

 

Sounds like there is an air leak but DO NOT LET THE KID RIDE IT until you straighten it out, new carbs are like $30 just replace it