i have one oft these chinese 4wheelers i have put to much money in trying to get it running right we found a plug for it and put a new cdi on it and bought a new 5lbs battery for it the darn thing still wont start does anyone have a suggestion?

 

Have you checked your ignition coil? I just went through this with one of my quads.
Mine ended up being the cdi.

 

What is the history of this quad? Was it running fine and suddenly quit? Or did it sit for 2 years and now won't start?

What is the brand? Engine size? Year?

Have you cleaned the carb?

Do you have spark? Do you know how to check for spark?

 

sounds like a coil issue try it next!

 

Too much money?? (battery 35, plug 2.50, cdi 12)Lucky it isn't a honda, yamaha, suzuki etc. We need more specifics to help you. Let us know...