The tilt / trim unit on the Yamaha 90, is a self contained, sealed unit. It is designed to be self bleeding, by running the unit to full up, from full down position, through several cycles. Make sure that the unit is full of fluid before, and during, the bleeding process. Also, give the trim motor a rest after each couple of cycles, this time given the motor to cool down, will also give time for the air bubbles to settle out of the trim fluid. The unit will usually self bleed during normal usage while you operate your boat.
1997
553kg
The 1997 model, 6 hp Yamaha outboard, requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
The 1997 model, 40 hp Yamaha, requires a 50:1 ratio. This is roughly one pint of 2 cycle oil to six gallons of fuel.
fill to mark with fluid.start engine and cycle the sterring wheel left to right until it feels light that it bleed job done
yes
The dry weight for a 1997 Yamaha 25 hp is listed at 108 lbs.
1997
475 pounds
no
1997-2001
400 cc Yamaha engine