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07 Mariner 15 std

M

mark_j

New member
"I just bought a "New"

"I just bought a "New" 07 Mariner 15hp 2str standard model. I was wondering where the motor draws its air from? The housing is well sealed, the only hole I can see is a small drain hole. My Tohatsu has an air vent in the upper rear of the cover."
 
Is there anything to gain from

Is there anything to gain from modifying the cover? Has anyone tried fitting a trumpet or bell mouth to carb??
 
"Mark I have been working on s

"Mark I have been working on small Mercs for years and own a 15 horse and a pair of 9.9's.

They are great little motors but you should put aside any ideas about getting more performance with them.

Yes, definately keep it tuned and even run a high flow prop (such as Solas etc with a replacable hub), but aside from that (which only serves to allow the motor to run at it's potential and burn gas a little better) there is NOTHING you can do to these motors that produce any "noticable" performance improvement.

And yes, I have tried just about everything on the market for different guys over the years. The one noticable difference has been the removal of money from their wallet
"
 
"Hi Graham
I'm not really

"Hi Graham
I'm not really looking for more power, I'm using this to replace a 8hp which I did tune for more power, because it was too small for the job.
My main question was the 1st one, I was trying to figure out where the air entered, the cover is a tight fit."
 
"I have a 1991 15 horse, and i

"I have a 1991 15 horse, and it's the same way. I never really thought about it, as to where the air is getting it, but have never had an issue and the motor is approaching 2000 hours of use - never even rebuilt the carb - just normal seasonal maint..."
 
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