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Yamaha Grizzly 600 Exhaust | HMF Performance Series

  • Yamaha Grizzly 600 Exhaust | HMF Performance Series
  • Yamaha Grizzly 600 Exhaust | HMF Performance Series
  • Yamaha Grizzly 600 Exhaust | HMF Performance Series

Yamaha® Grizzly 600

The Yamaha Grizzly 600 is available as a Slip-On exhaust in the Performance exhaust.  The slip-on system picks up 10-15% more horse power and torque throughout the power curve, and weighs substantially less that the stock exhaust.  The Performance exhaust will increase sound levels approximately 4-6 decibels above the stock muffler, but the HMF Quiet Core insert can lower that 2-4dB.

Fits: (98-01) Grizzly 600, YFM600FN

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® Grizzly 600 ATV Accessories

Tuning

Recommended Tuning
160 Mikuni (or equivalent) Small 

HMF Basic Jet Kit Includes
155, 160, 165 Mikuni (or equivalent) 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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