Marine: Boating, Sailing, PWC, GPS and Navigation - Spark plugs keep burning out

Doityourself.com community forum was created to provide answers to all questions related to home improvement and home repair. Doityourself community can help you find information about how-to topics on small fixes to large remodeling projects. With comprehensive how-to content and expertly moderated community forums DoItYourself.com makes it easy to tackle even the most complex home improvement projects.



PDA

View Full Version : Spark plugs keep burning out

Zak
05-20-03, 11:26 AM
I have a small 1.2hp outboard. It will run for about 2 hours, then the plug dies. If I put in a new plug the same thing happens. I have tried colder and hotter plugs but the same thing happens. Any suggestions??:confused:

whome
05-24-03, 09:22 AM
What do you mean "dies"? Check with ohmmeter or continuity light, gap, wire lead from electrical power source (magneto), etc. Really needs better diagnosis with some more details. Heat and compression also affect two stroke engines, fuel flow and mixture, carbonized cylinder/head... the list goes on. Pack a can of starting fluid spray and do a tune up.
Zak
05-26-03, 08:41 AM
Thanks for replying.

After running weel for about about 2 hours the motor stops running. The plug looks good but it doesn't work. If I put in a new plug it runs well for about two hours and does the same thing!:confused:

whome
05-26-03, 09:24 AM
Yeah, you said that before.