Re: 2004 Yamaha 25 gear oil leak

[David Stanton]

Yeah – I’ve already had to buy the *#/&%* metric tools to keep my vehicles running, so I’m good there. Have deep 1/4 drive metric sockets too and they have come in handy many times.

It’s probably the driveshaft seal. Thx for the heads up on the seal lip. I don’t have the right fittings to pressure test it, but I can put some pressure on it with my gear oil filler pump – that may tell me what I need to know.

I was just thinking I should check first to be sure it isn’t the crankcase oil drain bolt leaking and dripping off the skeg – It uses a ringed flat aluminum washer as a gasket that is supposed to be replaced with each oil change – and I have never put a new washer on it. I’ll know more when I can get it out into good light.

Changing spark plugs a few years ago was frustrating – no clearance around them for the thickness of the spark plug wrench. After going to several auto parts and tool stores, I finally found a deep socket that had thin enough walls to get the plugs out. The socket was made by AC-Delco/GM.
Dave