Won't go

[punch2]

Hi I have a 1987 spree, had been sitting up for quite a while. I cleaned the gas tank,and all filters. Engine starts and runs fine, but when I throtle up to ride the engine kills., it starts right up and runs fine every time but it just won't go. Any sugestions

[ferchja]

Sounds like carb cleaning, main jet is clogged.

[vette76]

if u dont have an air filter/air box installed, that is your problem.