no take off power

[gijeremy99]

recently bought a 1978 18' ski boat with an OMC 185<br />new points, and plugs and wires,fuel filter and cleaned in-line fuel screen<br /> Takes a while to plane out on take offs feels as if its loosing power or just lagging until it planes...once planned though it runs prettly good WOT 3100? or so at 35 MPH or little more<br /><br />my WOT is only reaching 3100 rpm or so?<br />My current prop is 14.5x19 is this correct for an 18' ski boat.<br /><br />any suggestions would be helpful

 

[Don S]

Re: no take off power

I know you just ordered your manual about an hour ago, so can I assume you haven't checked to see if the dwell or timing or advance timing is correct. Did you do a compression check yet? That would be a good place to start.<br />Here is a Merc service bulletin on how to do a proper compression check.<br /> http://www.boatfix.com/merc/Bullet/97/97_25.pdf <br />Also check the fuel pickup in the tank to make sure the screen is clean, and check the antisiphon valve for debris.<br />Don't start changing props till you are sure the ignition, fuel, and mechanical parts of the engine are in good working order.

 

[gijeremy99]

Re: no take off power

thanks,<br /><br />but all that seems a little out of my leage.<br />I will check the tank, no sure what antisiphon valve looks like, Engine seems to me runs good. in neutral it revs fine and sounds fine, no misses or anything.<br /><br />thanks for all your advice, I just wish someone like you was around here so i could take my boat to LOL...thanks again<br /><br />jeremy