Flushing Yamaha Motor

dgolden

Recruit
Joined
Apr 22, 2005
Messages
4
I have a 40 hp 2 stroke Yamaha Model # 40TLRD. I was wondering how do I flush out the motor, and how often I should do this? Thanks for any help you can give me.<br />dgolden
 

Solittle

Fleet Admiral
Joined
Apr 28, 2002
Messages
7,518
Re: Flushing Yamaha Motor

First a big WELCOME!!!!!!!! Now - I don't know your motor but most can be flushed with a thing that is called a "muff". It fits over the water pickup grid above your gear case. You attach a hose to it, turn the water on and start the motor. Don't run it over around 1,500 rpm. Run for 5-10 minutes.<br /><br />No need to flush at all if you run in fresh water. If you run in salt flush it at the end of every day. I (run in salt) take the cover off and spray some WD40 or whatever you prefer.
 

dgolden

Recruit
Joined
Apr 22, 2005
Messages
4
Re: Flushing Yamaha Motor

Thanks so much for the welcome!! I guess I can get this "muff" at most boat places??? Thanks for the advice. This is my husband's question, but I'm the typer, if you know what I mean. I do the research for him for his questions; he's not very computer savvy!! He fishes in salt water and fresh water. Thanks again and I'll let you know how it goes. Have a good day.<br />dgolden
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: Flushing Yamaha Motor

Moving to Outboard non-repair
 

pine island fred

Lieutenant Junior Grade
Joined
Dec 20, 2002
Messages
1,144
Re: Flushing Yamaha Motor

Yould like to add one thing. DO NOT walk away from the motor and stow your gear while the motor is being flushed. Stay with the boat and be allert for the overheat warning. Muffs can and do fall off during flushing. Water on-motor on/ motor off-then water off. Happy boating fred.
 

mattttt25

Commander
Joined
Sep 29, 2002
Messages
2,661
Re: Flushing Yamaha Motor

solittle- it surprises me that you stated he didn't need to flush his motor at all if used in freshwater. from everything i've ever read, you should still flush an engine if boating in freshwater. sand and silt can do as much damage to an impeller as salt can, in my opinion (and from what i've read and been told). but maybe i'm wrong.
 
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