Problems

[RiverRunner38]

I have a sixteen ft' boat by 48'' wide with 25 yamaha,CMC trim unit. My problems are slow planning, Extremely slow planning with more people than me. My steering is in the back and i am a heavy guy. I understand this is most of my problem! But any help with my situation besides moving steering would be appreciated very much! Hurry!

 

[yamatech43]

Re: Problems

What is the boat made of? Dimensions of boat less important than weight.....sounds like you have wrong motor on boat...had a 15.5 with 50 and a 16 with 90....16 with 25 sounds waaayyyy off....if fiberglass there is no help for it...if aluminum then what is the rpm at w.o.t.? should be 5500-6000.

 

[robert graham]

Re: Problems

Assuming you have an aluminum jon boat with a tiller, it's possible to make a tiller handle extension out of about a 2 or 3 foot long, 2"diameter piece of PVC pipe, slit one end with a saw and slide it on tiller handle, clamp it on with an aeroclamp, then you can slide your seat forward by about 2 feet, more or less, would help you a lot with weight distribution. You need to rig it up so you can reach back to your motor controls/shifter fairly easily. I've used this on my 17' aluminum canoe with 3HP motor and it helps a lot with balance. I've also run with 50LB. sandbags in front and it helps some too. Good Luck!

 

[RiverRunner38]

Re: Problems

It is aluminum and has stick steering, I don't have a tach but i assume the rpm's are not as recommended when motor is trimmed out to run smooth. The fishing deck consumes most of the boat all except about two feet where my feet are when running the boat. I am considering 10 pitch, factory prop is 11 1/4. Boat is fairly heavy with all the deck (Deck is made of aluminum so not heavy like ply wood or fiberglass) Is prop pitch the way to go? All help is kindly appreciated!

 

[99yam40]

Re: Problems

You have a narrow boat, and the wider ones come up on plane a lot easier.
But my thoughts are you have a motor problem or a set up problem.
without the RPM info there is no way of telling what is happening.
Look at the info given on this site to see what the 25hp motors did on some of these boats
http://www.yamaha-motor.com/outboard/products/perfbull.aspx?ls=outboard