Yamaha 115hp Water Discharge Question

Rooster368

Cadet
Joined
Jul 6, 2010
Messages
7
I apologize for what sounds like a silly question, but I wanted to get verification of this question before I go any further on this outboard.

I have a 1988 Yamaha 115hp (115ETLG) that does not have a lower unit. I have never run this unit myself, so I wanted to perform a bench test to check the power head. I hooked a garden hose directly to the water inlet pipe extending down into the mid-section, however once I turned the water on I saw a consirable amount of water exiting out the the bottom of the mid-section (around the exhaust manifold), in addition to the discharge hole on the lower cowling.

Is this normal, or does it indicate a bad seal somewhere? The engine did start and did not seem to have an issue running before I promptly shut it down.

Lastly (and a bit off topic), is there a way to check the condition of the socket where the drive shaft connects to the power head without having the drive shaft (i.e. can this be verified without removing the power head)?

Thanks,
Rich
 

rodbolt

Supreme Mariner
Joined
Sep 1, 2003
Messages
20,066
Re: Yamaha 115hp Water Discharge Question

its normal,how else can you cool the ex and prop hub?
not a good way to inspect the splines wthout removing the powerhead.
I have a 970 dollar snap-on bore scope that I use but most folks dont.
 
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