Tag: 400

Ask The Editors: What Is a Motor Control Unit?

Ask The Editors: What Is a Motor Control Unit?

Yes it’s real. No it isn’t the same as the CDI. Dear ATVC: I have a 2002 Yamaha Big Bear 400 with electrical problems. I am trying to find out the purpose of the Motor Control Unit. It is different from the CDI box and I am trying to determine whether or not it’s functioning […] More »

By: | June 19, 2022


Ask The Editors: When Your Hubs Won’t Engage

Ask The Editors: When Your Hubs Won’t Engage

Where to begin when your hubs aren’t playing nice. Dear ATVC: I am new at this, bear with me. I have a 2001 Polaris Sportsman 400 and the front hubs wont engage. The switch (all wheel drive) light will not work, either. I am thinking electrical problems? The fact that neither hub is engaging and […] More »

By: | January 30, 2022


Ask The Editors: Getting More Power From a Foreman

Ask The Editors:  Getting More Power From a Foreman

Pumping up the compression. Dear ATVC: I have a 1996 Honda Foreman 400 TRX400FW. It’s runs great. But I’m wondering what I can do for more power? I was thinking of shaving the cylinder head to increase the compression ratio. As of now it’s 8.2:1. Using 93 octane wouldn’t be a big deal to me. […] More »

By: | December 19, 2021



Ask The Editors: 400EX Turns Over But Won’t Start

Ask The Editors: 400EX Turns Over But Won’t Start

Refusing to fire up. Dear ATVC: I have a Honda 400EX that turns over but won’t start. I already cleaned the carb. Some of the jets were clogged and I thought that would be it but no difference. Fuel is flowing but not sure why it still won’t start. Please help. It sounds like you […] More »

By: | October 10, 2021


Ask The Editors: Identify My Machine From a Terrible Photo

Ask The Editors: Identify My Machine From a Terrible Photo

Is it really a Bear? Dear ATVC: I was told this was possibly a 2000-2012 Yamaha Big Bear 400; although the headlights seem too wide-set. Can anyone confirm or provide the correct year range, make, and model? Thank you. Based on the quality of this photo alone, that’s like asking a marine biologist to identify […] More »

By: | July 25, 2021


Suzuki Reveals the Remainder of its 2022s

Suzuki Reveals the Remainder of its 2022s

Meet the rest of the 22 ‘Zooks. Suzuki Motor USA, LLC (Suzuki) is thrilled to announce an additional group of dynamic and stylish 2022 Suzuki models. These returning 2022 Suzuki products add to an exciting range of premium Suzuki ATVs including proven and rugged Suzuki KingQuad ATVs, the fun and easy to ride QuadSport Z50 […] More »

By: | June 22, 2021


Ask the Editors: Is It Bad Stator?

Ask the Editors:  Is It  Bad Stator?

The only thing he didn’t replace yet. Dear ATVC: I installed a new battery, solenoid and starter on my 1996 Kawasaki Bayou 400. It will crank only when I jump it and purrs like a kitten until I disconnect the cables. Then it cuts off and just clicks when I try to crank again. Here’s […] More »

By: | May 24, 2021



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