2007 Yamaha 2 cyl 2 stroke improvements

[crappiefshr20]

I just recently upgraded my 1442 lowe semi v duck hunting boat with a 25 hp 1 owner Yamaha 25hp. The motor is quiet, starts first touch of buton, etc. I love it as far as reliability. However I am curious to as if any of you guys out here have done anything to improve the performance of the motor. I have not mounted it w/ the bolt hole brackets built to the motor yet just have I tightened up normally, im currently getting right at 29/30mph w/ 2 people, 2 batteries, a gun box and 5 gal gas tank and that's running a SS 13p prop. I have yet to tach it, I know, but are any of yall in my situation too? or have been? just looking for guidance on this motor, I know its not a 3cyl and a speed DEMON but im sure that theres something to do to get a lil extra, or I may be doin all shes got. any info is appreciated guys. Thanks!

 

[robert graham]

25HP and 30MPH sounds pretty darn good to me....you might adjust the height of motor, trim, weight distribution in the boat and pick up 1 or 2 MPH, if it's what you want and need...

 

[99yam40]

need to find out that RPM it is turning at WOT

 

[crappiefshr20]

I've come to realize that raising the height of the motor could help a lot for top end speed, I just haven't had the time to go ahead and do it yet. I know id like to have power Tilt and trim but I don't lol. I need a tach too. Any of yall ran one like mine and done anything to them??

 

[crappiefshr20]

99yam40 Ive heard it should be somewhere b/w 5-6k rpm at WOT is this true? Whats the most reliable tach to purchase to get a good judgment on the RPM at WOT?

 

[99yam40]

might check with a local Yamaha shop to see it they will run it up with a shop tach to see what it does if you do not feel like buying a tach

Have heard of tiny tach before but never tried one myself.
any good tach for an outboard motor should work.
I have one I use from a evenrude Johnson