slow out of the hole

[dig]

Ihave a DT65 horse suzuki and it is under powered when you go to take of i thought it was the prop so i changed it.it did'nt work. It seems that the rpm's are'nt high enough. But when you are going for alittle bit it will get up and go.could i still have the wrong prop. It is a 15 pitch 11" diameter.the boat is a 1978 lund 16'. Motor is a 79 . cleaned the carbs set the air screws so it runs clean but no hole.

 

[JB]

Re: slow out of the hole

Got what rpm at WOT, Dig??<br /><br />Changed prop from what to what? Now getting what rpm at WOT??<br /><br />Is the 15" prop what you started with or what you now have on her?<br /><br />Diagnosing performance problems like yours, if it really is a problem and not just impressions, requires readings on what the engine is doing.<br /><br />Get a tach on her and let us know. Good luck.

 

[bossee]

Re: slow out of the hole

Hi,<br />I had a Suzuki DT65 (1991) before.<br />I used a "S1500" propeller and max RPM was 5500<br />and speed then with 2 persons was 30 knots with my boat (5.4 x 2.1 meter, Hard Top).<br /><br />My DT65 had electrical Trim & Tilt. Do You have that? To trim down the outboard before accelerate to plane really helps, and at cruise to full speed trim out gradually to get optimal performance.<br /><br />Do You have tachometer? What is Your RPM at full throttle?<br /><br />Diffrent Suzuki propellers You could try, depending what You have tried already:<br /><br />