My son has outgrown his Honda TRX90. It has aggressive new rear tires, a new drive chain, new wheel and axle bearings all around, I added grease fittings, and I replaced the air filter. I also flipped the front tires and added rear wheel spacers to make it wider and super stable for the little guy. The ATV is in great shape aside from a tiny crack in the right front plastic fender. The machine starts on the first pull and runs great, probably the best running ATV I've ever owned. I have added a battery, stator, voltage regulator, headlights, and a tail light so he can safely ride at night. I also added a full-length aluminum skid plate as well as aluminum skid plates to the front a-arms so the frame is protected from any damage. I added an auxiliary oil cooler as well to keep the little beast from ever getting hot. I have always run Shell Rotella T6 synthetic oil and grease it after every wash.
Located in Northern Illinois.
I'm an engineer and really took care of this thing. It's been used by my kids for about a year and has been bulletproof. I'm sure it'll give your little guy years of fun as well.