Kmd 250cc atv electrical help needed badly
 

Ok what's up guys I've just bought 3 Chinese four wheelers on a good deal. My problem right now is on akmd 250cc sport quad. It won't start without being jumped. I just put a new battery in this morning and now it's slowly turning over but not enough to crank. When I jump it the headlights are dim almost non visible. I have no electrical background so any help is greatly greatly appreciated and desperately needed