Buckshot4161
Recruit
- Joined
- Aug 9, 2003
- Messages
- 1
I Have A 1987 Mariner 40 HP (Jap Model) 2 Cyl<br />After 20 To 30 Minutes Of WOT It Starts To Foul Plugs One At A Time. I Have Tried Different Brands And Different Heat Ranges I Am Currently Using Champion Plugs.<br />I Have Checked Compression And Spark And They Check Ok. I Changed Fuel Tank And Line (Old Age) And Have Cut Back On Oil Slightly.<br />I Am Running 50:1 Reccomended Mix.<br />The Plugs Do Not Have Electrodes They Are Flat.<br />Is This A Plug Problem Or Am I Stuck With 4 Or 5 Plug Changes Every Time We Go Out?<br />There Is No Smoke At Idle Or WOT And Seems To Run Fine Until The Plugs Start Fouling.<br />Thanks Any Help Is Appreciated. 