begginer boater needs speed advice

[ognivoj]

I just purchased a 1969 16' SEAKING (tri-hull) It has a 1975 25hp johnson (sea horse) <br /><br />The lake i go to has a 25hp max limit so i can't get a bigger motor. i was reading other posted questions and read about plaining. the front of my boat lifts about 12" or more off the waterat full speed.<br /><br />my 1st question is about a pin that adjusts the angle of the motor.it is all the way out (away from the boat) and there are three holes. if i move it all the way in (against the boat)it will bring my prop in. will this bring the nose of the boat down and is this what i want? <br /><br />2nd question:is there anthing else i can do to my engine to get more speed or power? other people on the lake with 25hp motors & slightly bigger boats are pulling skiers with no problem. my boat seems to be sluggish<br />when my wife tries to pull me.

 

[kevlar3000]

Re: begginer boater needs speed advice

Thats not a lot of motor for skiing. Just pushing a 16ft boat is a good days work for that one. The best bet to try skiing would to sit on the dock with the skis in the water, and go that way. Once your down in the water you may as well climb back in, go back to the dock and do it again. It's still fun tho, isn't it?

 

[Yepblaze]

Re: begginer boater needs speed advice

If your boat is yoo heavy you will never plane out with the 25.<br /><br />Kicking in the lower unit might bring the front down but......<br /><br />Possably your best effort might be by finding a larger (HP wise) motor and setting it up with 25hp decals. Or maybe a lighter boat.

 

[NotoriusPIG]

Re: begginer boater needs speed advice

Moving the pin in should bring the bow of your boat down. Getting your boat to plane out properly will help your speed. However, Tri-hulls were not built for speed, a speed boat with a nice v hull will have a smaller foot print in the water and require less hp to get the same speed. How strictly is the 25mph speed limit enforced the seems slow for skiing?

 

[ognivoj]

Re: begginer boater needs speed advice

i've been out twice on the boat and i can get up on the skies but the second time out i took an extra 70lb kid and it seemed much slower.<br /><br />can i do anything to this motor(chage prop, carb, etc)

 

[Bob_VT]

Re: begginer boater needs speed advice

Hmmm I bet this comment will open a can of worms. Your message states there is a 25 HP limit on the lake? Well in 1975 a 25 hp motor was not measured at the prop for horsepower. Your alternatives are ... go for a new 25 hp motor (or a good rebuilt one) or check around and see if people are running higher horsepower motors "re-marked" or un-marked. When I fished the BASS circuit there was a 150 hp limit with many people running higher hp motors "re-marked" to say they were 150. Good luck.

 

[ognivoj]

Re: begginer boater needs speed advice

Bob_VT thanks for the info. does that mean that my 1975 johnson has less horse power than a newer motor.<br /><br />any other advice would be appreciated

 

[enn]

Re: begginer boater needs speed advice

BOB is right,<br /><br />In app 1982 thay changed from crankshaft HP to Propeller shaft hp.<br /><br />I had a Johnson 25 hp from 1975 on my trihull it could do app 19 knots with 2 persons onboard - changed to a 30 hp 4 stroke Suzuki it now runs 26 knots with 2 persons - and will pull waterski.

 

[sony2001]

Re: begginer boater needs speed advice

Yes bring the pin closer to the transom to lower the bow at speed.<br />Find another prop that has a 1" less pitch. The boat may go 2 mph slower but is much better to ski with. Check out miwheel.com.