Originally Posted by chuck713
I am having difficulty getting my 10' Avon to plane with 2 adults and 12 year old child on board. I am using a 15 hp Yamaha 2 stroke for power. I have already installed the dolphin on the engine and it works great at keeping the bow down with one person on board but does not seem to do much with 2 or more people.
I am thinking that perhaps I need to change out the prop and am looking for some advice. I am not sure what is on the engine now but believe it has the standard prop shipped from the factory as I bought the set up second hand.
Any advice or guidance would be appreciated.
Something definitely doesn't sound right here. With the load you describe it should plane with an 8hp let alone a 15hp!
Unless you have a 'massive' prop on there it should fly up on to the plane - You sure it's firing on both cylinders?
Is it an airdeck of wooden floor? - if airdeck, is it(and the keel) correctly inflated?
Have you ever managed to get it to plane with the decribed load in the past or is this the first attempt?
How old is the engine? - has it seen better days?
I have a 10' Avon with a '88 Johnson 15hp that will get up on the plane with 4 large chaps on board!!