I have owned this boat for about 5 years & never added fluid to the system. It began to be sluggish while raising it. So I added fluid & that was what she needed. However, must have left out an o-ring or washer & can not seem to find where one goes. It is leaking where the screw on cap is where the fluid is added. The engine is a 130 HP Honda, but the trim mechanism looks identical to the ones found on Yamahas.
Shoot Low, Boys, They're Ridin' Shetland Ponies!: Lewis Grizzard