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One more time

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cuzzx

Member
"and this is it, I'm tired

"and this is it, I'm tired of this.

Ok, I have a older 20ft pontoon with a older Mariner 75hp running a 13 3/4 x 15 aluminum prop. This is what the toon/motor did today.

Toon weights about 1200lbs, motor is 280lbs. two men at 375lbs. gas 10gals. and gear around 50lbs.

motor at WOT 4200rpm/15mph

3300rpm/11mph

2600rpm/7 mph

2200rpm/4 mph

setting in the water the motor's cavitation plate is about 4inches below the water line, with the motor running at WOT you can see the bolt that holds the trim tab at water level.

What do you think needs to be done to get R's up and speed right?"
 
"If the engine is running all

"If the engine is running all all cylinders, lower pitch prop, maybe you can borrow a few from the local shop."
 
"prop is no problem, here is w

"prop is no problem, here is where the motor runs best, we will talk about the barnicals later.
217956.jpg
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13 3/4 x 13 do you think.

p

13 3/4 x 13 do you think.

pontoon is home to get cleaned and paint.

this is after one month in salt.
 
Id say the a clean bottom from

Id say the a clean bottom from the state it is in now will be good for 1000rpm
 
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