Yamaha Outboard Parts
Yamaha   Yamaha Outboard Parts
Yamaha Outboard Forum Yamaha Outboard Parts Discussion Forum Yamaha Outboard Parts Boat Parts Yamaha Outboard Forum Outboard Motor Parts Contact Us
Yamaha Parts
  #1 (permalink)  
Old 07-14-2009
Posts: n/a
Default Fresh Water Hook Up?

There's a water hose type fitting on my motor, I've heard it called a fresh water hook up, there's a male fitting coming out of the motor and a female fitting with a hose on it that looks like it might run into the lower unit. I hooked water up to the female side and water came out of all the holes in the lower unit and the pee hole. My question is if the termostats were OUT would it circulate through ALL the cooling passages?
Thanks in advance, I'm trying to understand how the cooling system works.
Reply With Quote
  #2 (permalink)  
Old 07-15-2009
Senior Member
Join Date: Dec 1969
Location: Greenville,S.C.
Posts: 2,101

the fresh water hook up is a very nice feature that allows you to flush salt, dirt, mud, etc. out of your motor. my motor is a 1999 model and doesn't have this feature, so I have to flush the motor on the garden hose with the rubber cup flush unit.
Reply With Quote
  #3 (permalink)  
Old 07-15-2009
Posts: n/a

Thanks for the reply, lots of different theories out there. I keep getting different answers
Reply With Quote
  #4 (permalink)  
Old 07-17-2009
Senior Member
Join Date: Dec 1969
Posts: 626

I have the same engine. Yes, it flushes entire cooling circuit that's what it's for. You can even run the engine on this without messing with the cups. However, you can't test the water pump with this way.
Reply With Quote
  #5 (permalink)  
Old 07-24-2009
Junior Member
Join Date: Dec 1969
Posts: 10

According to the manual you should NEVER run the engine when using the fresh water hook up.
That system flushes the engine (excellent feature) but does not supply water via the pump. If you run the engine the pump will run dry and risk buggering the impeller
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 10:44 AM.

Outboard Parts

Other Forums
Mercury Parts
Suzuki Parts
Evinrude Parts
Johnson Parts
Honda Parts

Copyright 2000 - 2017, Outdoor Network LLC