Re: Calling all Merc Mechanics
 

I have a 94 Yamaha sitting in the yard doing the same thing? I have no idea why?? But I said to hell with it and hung a 175 Evinrude on the boat and will be parting out the Yamaha soon.

Re: Calling all Merc Mechanics
 

I have a 94 Yamaha sitting in the yard doing the same thing? I have no idea why?? But I said to hell with it and hung a 175 Evinrude on the boat and will be parting out the Yamaha soon.

Re: Calling all Merc Mechanics
 

Thanks Hammer, the two girls and the boy in orange are mine, other kid is a neighbor.

It is a 1999. Havent set a price yet.....

Re: Calling all Merc Mechanics
 

Thanks Hammer, the two girls and the boy in orange are mine, other kid is a neighbor.

It is a 1999. Havent set a price yet.....

Re: Calling all Merc Mechanics
 

I appreciate all the ideas guys.....we will solve this thing.


Skook's, I havent seen any dirt dobber signs, but that is something I will look for.

Ferm and Air, I am not sure that it is actually overheating, I will try the bad sensor theory too.

Re: Calling all Merc Mechanics
 

I appreciate all the ideas guys.....we will solve this thing.


Skook's, I havent seen any dirt dobber signs, but that is something I will look for.

Ferm and Air, I am not sure that it is actually overheating, I will try the bad sensor theory too.

Re: Calling all Merc Mechanics
 

the barb fitting is part of the idle air system, as the engine warms up, it allows more air into the intake trac to lean out the mixture, it should have one of the barbs connected to a hose taht runs to the front half of the engine, the other barb is left open.

Checking the sensors is a good starting point, its the ones with the tan/blue wire.
Go ahead and put a water pump in it, its regular mantance on a Merc, its the best starting point for figuring out whats wrong.

Re: Calling all Merc Mechanics
 

the barb fitting is part of the idle air system, as the engine warms up, it allows more air into the intake trac to lean out the mixture, it should have one of the barbs connected to a hose taht runs to the front half of the engine, the other barb is left open.

Checking the sensors is a good starting point, its the ones with the tan/blue wire.
Go ahead and put a water pump in it, its regular mantance on a Merc, its the best starting point for figuring out whats wrong.

Re: Calling all Merc Mechanics
 

This might be a dumb thought, but you said its an auto oiler that has been disconnected - I wonder if they disconnected everything including the low oil alarm? *

Usually there are different beeping patterns for overheat and low oil. *Find out which is which and go from there. *

Can you put you hand on the block without burning it after a few minutes?

I had a friend that burned up a 150 force. It had a good stream of water, but alarm started going off and he didn't know any better. The water coming from the pisser was hooooot and he kept gettin it till she died.

Good luck! *Nice pics - is that your service weapon *8) ;D

P.S. I know nothing about Mercs - never owned one so this is all hearsay, your honor.

Re: Calling all Merc Mechanics
 

This might be a dumb thought, but you said its an auto oiler that has been disconnected - I wonder if they disconnected everything including the low oil alarm? *

Usually there are different beeping patterns for overheat and low oil. *Find out which is which and go from there. *

Can you put you hand on the block without burning it after a few minutes?

I had a friend that burned up a 150 force. It had a good stream of water, but alarm started going off and he didn't know any better. The water coming from the pisser was hooooot and he kept gettin it till she died.

Good luck! *Nice pics - is that your service weapon *8) ;D

P.S. I know nothing about Mercs - never owned one so this is all hearsay, your honor.