Re: Oil Coated Plugs?
You are running rich,is my best guess.<br />With a warm engine, clean plugs, fast idle...<br />Turn the mxture screw in 1/8 turn.Wait 10 seconds. Repeat 1/8 turn at a time until engine runs rough. Make a mental note of ths setting(this will be the lean point).<br /> Now,turn back out 1/8 turn at a time (waiting the 10 second interval),until it again runs rough. (This will be the rich point). <br />Turn it back in to the point halfway between rough idle lean and rough idle rich. It should burn cleaner. But also note this engine will run dirty anyway by design.It helps to use a high grade of oil too. WalMart's Supertech or Quicksilver premium are two good oils. Only use 87Octane. 93octane will burn slower,and foul earlier.<br />Ask someone with a book for the recommended plug.Stick with that recommendation,as changing to a hotter plug can damage the pistons.<br />The Chrysler and Force motors require frequent decarbing also.Plugs should last 60-80hours, depending on throttle habits (60 or less for mainly idling,80 or so for mainly cruising throttle).<br />One other thing to check is the recirculation hose for blockages or holes. It runs from the reed box,behind the carb, to a fitting on the starboard side of the block,behind or near the fuel pump.<br />Make sure yur engine has good compression too.<br />Hope this helps.