if in any type of water(puddle splashing) they really need a inline fuel filter. we had alot of problems with ours until we put on a inline fuel filter, and wammo these 80's rip.

 

hey its minikaleb and the kfx will really rip if you get a fmf powercore II silencer and really try to modify your airbox just cut the hole bigger and it will really go.and put spacers on it to make it wider so you can do donuts and stuff im only 14 and i love it with all the stuff ive done to it you could also bore out the carb its kinda hard its delta shaped so you have to do it by hand with a dremal or a die grinder then it will go but if it is sputtering on roads or big strait aways just put a fmf on it,it will stop and somtimes if it is sounding bad there is a plug on the muffaler that you can see if its pluged up...try it all!!!!!!!!!