Home › Forum › Ask A Member › 2004 Yamaha 25 gear oil leak › Re: 2004 Yamaha 25 gear oil leak
April 28, 2018 at 9:57 am
#74920
I never have done a 25 but have done some smaller and many bigger ones. They are pretty straight forward. They seem to like to leak out of the drive shaft seals a lot. Best bet is to pressure test before disassembly. Most Yamahas do one odd thing….the seal lips all face OUT. In other words, if you have back to back seals, they both are put in facing the same way. This is different than most other manufacturers and usually holds the pressure test figure down to about 9.9 psi.
Long live American manufacturing!