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Yamaha Warrior Exhaust | HMF Performance Series

  • Yamaha Warrior Exhaust | HMF Performance Series
  • Yamaha Warrior Exhaust | HMF Performance Series
  • Yamaha Warrior Exhaust | Blackout
  • Yamaha Warrior Exhaust | HMF Performance Series
  • Yamaha Warrior Exhaust | Blackout
  • Yamaha Warrior Exhaust | Blackout

Yamaha® Warrior

The Yamaha Warrior features proven four-stroke technology with a mighty 348cc single-cylinder engine. For even more optimal engine performance, the Warrior is equipped with a large 36mm Mikuni carburetor, which features both slide and butterfly valves to increase air flow and fuel delivery. We were able to take real advantage of this unique design by picking up 8% horse power with our Sport Series Slip-On exhaust. The sound increased 4-6 dB, however, if you need to run quiet from time to time, install the HMF Quiet Core for a 2-4 dB cut.

Fuel tuning is required learn more

Fuel Tuning is absolutely required when installing an HMF Exhaust on this machine. Failure to tune the engine can cause excessive damage to the exhaust system and engine, while voiding the warranty on your exhaust and possibly on your machine. (check with local dealer). See the tuning settings below for the proper fuel tuning solution on your machine.

Exhaust Systems

Yamaha® Warrior ATV Accessories

Tuning

Recommended Tuning
152 Mikuni Small

HMF Basic Jet Kit Includes
148, 152, 155 Mikuni Small

Low Speed Fuel

Going down on the number scale will reduce low speed fuel. Going up on the number scale will increase low speed fuel.

Mid Range Fuel

Going down on the number scale will reduce mid range fuel. Going up on the number scale will increase mid range fuel.

High End Fuel

Going down on the number scale will reduce high end fuel. Going up on the number scale will increase high end fuel.

Green Lower Switch Point

Going down on the number scale will turn green mode on earlier. Going up on the number scale will turn green mode on later. These modes typically will not need adjusted from their base setting.

Yellow Lower Switch Point

Going down on the number scale will turn yellow mode on earlier. Going up on the number scale will turn yellow mode on later. These modes typically will not need adjusted from their base setting.

Red Lower Switch Point

Going down on the number scale will turn red mode on earlier. Going up on the number scale will turn red mode on later. These modes typically will not need adjusted from their base setting.

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