1988 Force slows down

[tvalaint]

Hey guys thanks for all your help!!<br />Here's the problem- I have a 1988 force 125 and when I first take it out and run fullout it slows from 37 mph to 27 with in 10-15 minutes. I recently had my local marine shop tune it up. In addition I have had the shop adjust my fuel mix. at full throttle. <br />Thanks again, Tom

 

[roscoe]

Re: 1988 Force slows down

I would think you have an ignition problem. One of your cylinders is not getting spark. As the engine and coils get hotter, the coil fails to provide spark.<br /><br />When egine is hot and you are experiencing the trouble, check for spark at the spark plugs. One will not be sparking.

 

[tvalaint]

Re: 1988 Force slows down

Roscoe, <br />Thanks for your input. Should I be looking at my stater coil?<br />Thanks, Tom

 

[The Marine Doctor]

Re: 1988 Force slows down

Check the output at the IGN coils...or look for a wet sparkplug. The stator will knock out more than 1 plug if its the problem.<br /><br />TMD