1987 Force 125HP

lushka16

Seaman Apprentice
Joined
Jan 21, 2004
Messages
34
My motor has been problematic from the start, and it seems to have basically the same problems as everyone else. <br /><br />I can pull a tube, but it takes a while to get up to speed. <br /><br />Skiers are touch and go, up on 2 skiis is fine just takes a while to get to speed, one ski forget about it if the skiier is over 130 pounds. <br /><br />It seems that my top speed is about 30 MPH @ 4000 RPMS, I can coax 4500 with the trim. <br /><br />I have replaced the spark plugs, played with the mixture, cleaned the carb.. I did other things, but I can't really remember what. <br /><br />Here's the wierd thing though - I can "trick" the motor into gaining speed by turning right really sharply. Does this have any significance? <br /><br />I've been getting really random performance from different props. 15 17 and 13.. they seem to work better at random.<br />Thanks a lot<br />Elia
 

WillyBWright

Fleet Admiral
Joined
Dec 29, 2003
Messages
8,200
Re: 1987 Force 125HP

Me thinks you have a problem that needs repair. Could be just about anything. I'm thinking you're not getting full horsepower out of one or more cylinders.
 

roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,755
Re: 1987 Force 125HP

Yes, its time for a compression check. Then check for spark to each cylinder. If you have spark, then decarb the engine. Then check compression again.
 

lushka16

Seaman Apprentice
Joined
Jan 21, 2004
Messages
34
Re: 1987 Force 125HP

Great, I'm just trying to get a list together of things I want to do once it gets a little warmer. <br />So right now it's spark and compression. Anything else?
 

OBJ

Supreme Mariner
Joined
Dec 27, 2002
Messages
10,161
Re: 1987 Force 125HP

Well...let me throw this out. Lushka, tell us about how the rig is set up. Where is the anti-cavitation plate in regards to the keel? If you have Trim N' Tilt, do you use it? I mean is the engine trimmed all the way in coming out of the hole and then trimmed with the rig coming up.<br /><br />Just taking a shot in the dark here. :)
 
Top