2007-2009 Yamaha F15/F20 Outboard Service Manual, Page 290Get this manual

2007-2009 Yamaha F15/F20 Outboard Service Manual, Page 290

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4) SHIFT LIMITER Shifting to Forward or Reverse from Neutral is only allowed when the throttle is in the idle positionThis is safety device to protect sharper startingWhen the throttle is opened, the