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Discussion Starter · #1 ·
on my 60hp 2 stroke yammi, I noticed fluid leaking out of one of the pistons. Actually created a nice little puddle, I'm assuming an o-ring is leaking. Is this an easy fix or more to it?
 

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It's a hydraulic piston. As seals wear they leak.
The factory shop manual shows how to do the rebuild.
Includes pictures and tools needed to complete job correctly.
 

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Cert. Yamaha technician
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You will need the right size spanner wrench. One seal and one wiper.
Also inspect piston for pitting or scratches, as those are what hurt the seal 90% of the time, and will destroy new seals as well. Also a decent understanding of the trim system is needed when filling it back up, or you can burn it up.
 

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Discussion Starter · #4 ·
Thanks guys, what size spanner wrench and is that something I can get at an auto parts store
 

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Honestly i dont know what size spanner wrench it needs cuz i have the yamaha tool..
And ive never seen a spanner wrench at any auto parts store. I think you might have to get it off of a snap on truck.
 

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I'm going to say take it to a shop, Trim and Tilt systems can be very difficult to work on. I am a factory trained marine technician and I probably hate trim systems the most.
 

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Discussion Starter · #8 ·
decided to drop it off, the spanner wrench was going to run me $70 - 80 (for the 4 prong), ended up costing me $123 to get both pistons serviced with new seals/o rings, thx for the advice
 
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