2009-2011 Yamaha Grizzly 550 Firmware / Maps

Firmware and Maps

Below is the latest firmware and maps for the ECU.  The map title indicates the machine, limiters, octane for each switch position, additional fuel (if applicable), M109R injector, and revision. The machine and revision MUST match that of the firmware for proper operation.

MAP/FIRMWARE UPDATE DIRECTIONS

Below is the breakdown on how the map naming convention works:
Map Octane
  1) safety-87 octane. This map is what was loaded when your ECU left our facility if no changes were requested.

      Map #1 is loaded with 87 octane, and factory style safety limiters.
      Map #2 is optimized for 87 octane, with all limiters disabled.

  2) safety-91 octane.

      Map #1 is loaded with 87 octane, and factory style safety limiters.
      Map #2 is optimized for 91 octane, with all limiters disabled.

  3) 87-91 octane.

      Map #1 is optimized for 87 octane, with all limiters disabled.
      Map #2 is optimized for 91 octane, with all limiters disabled.


Additional Fuel on Both Maps

  1) 5-percent:  Used for aftermarket pipe tips.

  2) 10-percent:  Pipes with flows such as the HMF Swap series, Yosimura, etc.

  3) 15-percent:  Pipes with flows such as the HMF Utility series, FMF, Big Bub, etc. (straight pipes with baffles) 

Maps for Stock Fuel Injector

Stock Pipe:     

GR550 SAFETY_87 v3.3     

GR550 SAFETY_91 V3.3     

GR550 87_91 V3.3

Aftermarket Pipe:     

GR550 87_91-5_percent V3.3     

GR550 87_97-10_percent V3.3     

GR550 87_91-15_percent V3.3

Firmware

2009-2011 YAMAHA GRIZZLY 550 V3.3A     

Links to Old Firmware and Maps

LINK TO OLD FIRMWARE     

LINK TO OLD MAPS