1990 , 90 horse force still no power

[puzzled]

put in new spark plugs were fouled, but still goes only 10mph just no power misses some too any other suggestions??And what can cause the plus to foul? help please asap,only had this thing 2wks.

 

[JB]

Re: 1990 , 90 horse force still no power

We need more info, Puzzled. Are all cylinders firing? What happens if you pump the primer bulb? Are the chokes stuck closed?<br /><br />Fouled plugs could be several things, most of them bad. Running too rich is the most likely and easiest to fix. Stuck chokes or floats can cause it.<br /><br />Give us some history. Did you ever see this thing run right? What did the previous owner say about performance?<br /><br />Standing by.<br /><br />JB

 

[JB]

Re: 1990 , 90 horse force still no power

Hmmm. I found your other post. Very confusing when you drop what has been covered and start fresh. Makes someone trying to help look dumb.<br /><br />Look for sticking chokes or floats, pull plug wires one at a time to see if all cylinders are really firing.<br /><br />Good Luck.<br /><br />Red sky at night.<br />JB

 

[kev_79]

Re: 1990 , 90 horse force still no power

I replied to the other on. You are "puzzling" me

 

[puzzled]

Re: 1990 , 90 horse force still no power

sorry bout that. didnt mean to make you or anyone look dumb,wasnt sure if i was to hit the reply or start fresh. We had it out for past two weeks and has run great, friday nite it ran great, then this past saturday, we started with the problems like overnight.<br />the primer bulb, at first, we would have to use it , but a of saturday, we never had to squeeze it before starting it up. the chokes are all open. when we shut it off and looked at the motor, there was gas laying in the carburator, and there was gas (film) laying ontop of the water around the back part of the boat.Plugs were black, put new in, but it still at full throttle, went only 10mph and still dies at full throttle too.thought it was odd we didnt have to prime it before starting it, that only begune on sat. also. when the motor is running, it sounds like it is reving up and going full throttle except its not only 5-10mph.

 

[puzzled]

Re: 1990 , 90 horse force still no power

only 2 cylinders are firing.

 

[JB]

Re: 1990 , 90 horse force still no power

You might have 2 problems, Puzzled. I don't have much experience with FORCE engines, but if the engine is really revving up without moving the boat you may have a "spun" prop hub. <br /><br />The dead cylinder could be missing spark, starving for fuel or flooded. Sounds like flooded is most likely.<br /><br />Take that carb apart. Look for anything preventing the float from cutting off gas when the bowl is full, or anything restricting the flow of air to the reeds.<br /><br />Good luck and let us know what you find.<br /><br />Red sky at night. . . <br />JB

 

[clanton]

Re: 1990 , 90 horse force still no power

Check the compression and spark. Spark should jump 3/8 gap at cranking rpms.

 

[clanton]

Re: 1990 , 90 horse force still no power

Check the compression and spark. Spark should jump 3/8 gap at cranking rpms.

 

[clanton]

Re: 1990 , 90 horse force still no power

Check the compression and spark. Spark should jump 3/8 gap at cranking rpms.

 

[lonewolf5347]

Re: 1990 , 90 horse force still no power

90HP, 3 CYLINDER ENGINE ; ONLY 2 CYLINDERS ARE FIREING ONE DEAD. WELL COULD BE ONLY THREE THINGS STATOR TRIGGERS OR SWITCHBOX EMAIL ME I WILL SEND YOU A TROUBLE SHOOTING GUIDE THAT MIGHT SOLVE YOUR PROBLEM www.lonewolf5347@cs.com

 

[puzzled]

Re: 1990 , 90 horse force still no power

Thank you will try all of these and let you know what we find, trying our luck again tomorrow, might know this would happen when we have 105 degree heat indexs!

 

[JB]

Re: 1990 , 90 horse force still no power

Say, Lonewolf. What would happen if the "dead" cylinder had spark but no fuel?? Maybe there are more than three things that could be wrong??

 

[puzzled]

Re: 1990 , 90 horse force still no power

thanks. Found our prop is bent, and the powerhead,or powerpack is bad, what would cause that?

 

[puzzled]

Re: 1990 , 90 horse force still no power

we seemto be hearing alot of things in this message board about the Force motors, similar problems too, does anyone know if maybe these arent good motors to have? With the similar problems and all, makes one wonder if the Force isnt living up to its name??