Spark plug question

[answered prayer]

I have a 87 125 hp force on a 19'bayliner. I do a lot of slow speed crusing, which fouls the plugs pretty regularly. I thought I saw somewhere that you could use a regular type plug instead of the surface gap ones, to help with fouling. Would this work??? Does any one have any idea what the plug number would be for my application???<br /> Thanks

 

[12Footer]

Re: Spark plug question

No. There is no plug to change to,without altering the heat range of the plug (potential death to the motor). But the gapless plugs hold up better against fouling anyway.<br />If you are running properly, you will still need to change out plugs every 80 hours of operation.<br />Your carb settings mat be too rich, but leave it there,as it's best to run too rich, than too run too lean (no gas, no lubrication, in 2 cycle engines).<br />It's best just to keep a s/p wrench and a spare set of plugs with you.<br /><br />Also, I would be concerned of carbon buildup. The Forece line of engines are notoriously dirty-runners, which is why Merc axed the entire line instead of redisgn/retooling to meet strickter emission standards in 2000.<br />I run my Force 50HP predominently in manatee idle zones meself, so I have to decarbon after 8-10hours of such operation.

 

[Mufasa]

Re: Spark plug question

I am surprised the motor still idles at all. I have had good luck with the Champion L77JC4 in your application. They are dirty motors and leave a lot of unburned fuel behind.