"89" Force 50 acting strange

JMavro

Recruit
Joined
Jun 24, 2005
Messages
1
Hello i am pretty new to the world of outboards, i Just got an "89" force 50 on a 15' bayliner. I had it out today and found a few things to be off on it. The first was that it could not get up on a plane without someone moving their weight to get the bow down (only had myself and 1 other person)...and then it would stay on a plane at WOT. Is it trimed improperly? It seemed that my prop was small i believe a 10 12, I read another post where changing to an 11 pitch would help that out..<br /><br />Also the throttle seemed way off..if i would back it off of WOT by just a hair i would lose almost all speed..<br /><br />While running it in the 5mph areas i would feel/hear the engine hit and miss, I heard that it could be the gap on my spark plugs.. Does anyone know what the proper gap should be?<br /><br />I was also useing high octane gas 93 i believe with quicksilver oil mix. Could it be that the engine doesnt respond well to high octane? Overall i found the engine to be very sluggish an "getting out of the hole" to be extreamly difficult. Would any of these factors contribute to that? Any advice is greatly appreaciated. Thanks<br />-Jay
 

rayiow

Seaman
Joined
Jul 4, 2004
Messages
71
Re: "89" Force 50 acting strange

hi,i have the same motor on a 15ft crysler striper and i have hydro-fins attached to my outboard and they make it easier for the boat to get onto the plane,sounds like you need to adjust your trim by going in abit,as for the plugs the gap is pre-set and are non-adjustable(which i think is a good idea and cannot see why it has not caught on over here in the uk).
 

raveng60

Cadet
Joined
Mar 23, 2005
Messages
23
Re: "89" Force 50 acting strange

yhea use ngk 2422 plugs which are non-gapable. also dont waste your money in expensive fuel...87 its just fine. let us know how it goes.
 
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