My dad bought 2 Hijets from a local VA medical center auction 12 years ago before these things got really popular. Paid $500 for 2: one running and one for parts. We have used it on our 300 acre ranch ever since. The Hijet is a white 1990 S80LP left hand drive 2 wheel drive. We replaced the stock tires with Dirt Devil ATV tires. I have been having some problems with keeping the truck idling without dying lately. I have ordered new: NGK plugs, air filter, fuel filter, distributor rotor all from G & R. I'm also installing a 2.5 - 4 PSI electric fuel pump. All the vaccum hoses are hooked up and good. I have replaced the mechanical pump trwice since we bought the trucks. Hopefully all this maintenance will fix my problem. I'll also be removing the speed limiter once thr truck is running well and installing a custom trailer hitch in the rear bolted to the frame.