Yamaha 300 HP not full going down

[seasick]

Problem resolved. There are two bolts that the lower piston/rams comes in contact with as the motor is being lowered. There should be a bevel on the contact head of these bolts that allows the rams to retract. The original bolts on this year motor had flat heads and the piston/ram would occasionally get caught and not allow the rams to retract causing the motor not to go down. Two new bolts and problem seems to be resolved.

Interesting. Can you post a picture of those bolts?

 

[HalcyonDays]

The bolt I am speaking of is in the center of this photo.

 

[seasick]

Is it the top of the trim ram rod that you were referring to??? Yikes, yours looks like the tip corroded away. I don't think the tops on mine are bolts but rather part of the rod.

Routine maintenance for the rods is to put a small schmear of grease on the tip. ( which should be rounded)

 

[HalcyonDays]

It is not the top trim ram rod, and there is no corrosion, you are seeing algae growth from a month in the brackish river.

 

[seasick]

I looked up the parts diagram and it looks like that bolt is a $52 part !!! Can that be??

 

[Legend]

Problem resolved. There are two bolts that the lower piston/rams comes in contact with as the motor is being lowered. There should be a bevel on the contact head of these bolts that allows the rams to retract. The original bolts on this year motor had flat heads and the piston/ram would occasionally get caught and not allow the rams to retract causing the motor not to go down. Two new bolts and problem seems to be resolved.

Sounds like the same issue i was having - glad they resolved it.