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How old is my mariner 40

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wil200

New member
"Hi all,
I have a Mariner 40h

"Hi all,
I have a Mariner 40hp model no 6E9 L 354256, and was wandering if anybody knew what year it is, also is 50:1 the right mix and every when should you change the impellor on it?}"
 
"Dilwyn, that is a 1990 Yamaha

"Dilwyn, that is a 1990 Yamaha built Mariner.

50:1 with regular unleaded (91 or 92 RON since I see you are on the other side of the big pond) and TCW3 rated Marine 2 stroke oil.

Normally, the impellor should be replaced every 2 years.

Personally, I will put in a whole kit (impellor/gaskets/seals) every 2nd service interval.

So every 4 years a whole kit and in between, just the impellor....

Some guys will leave the impellor for 5, 6 or even 10 years, but I figure, for the minimal cost it isn't worth frying the motor to save a few bucks on an impellor.."
 
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