The Prairie 300 is a dependable belt-drive workhorse, but owners run into carb, clutch, overheating, and seal leaks. Here is what to watch and how to fix them.

The Suzuki KingQuad 400 is reliable, but the rear drum brake, CVT shift, stalling and starter cause most owner complaints. Here’s what to expect and fix.

The Grizzly 660 is a legend, but the engine, carb, starter one-way clutch and diff lock all fail with age. Here’s what owners report and how to fix it.

The Polaris Sportsman 500 is tough, but the carb, PVT belt, charging system and starter fail on old units. Here’s what owners report and how to fix it.

Honda Rancher owners most often fight electric-shift (ES) failures, then charging and drivetrain issues. Here’s what goes wrong and how to fix it.

Honda Rubicon owners mostly fight DCT and electric-shift transmission failures, especially on the 2020 and 2021 520s. Here’s what goes wrong and how to fix it.

The Yamaha Kodiak 450 is a dependable utility ATV, but owners report charging issues, hard starts, and CVT wear. Here are the real problems and fixes.