JT!
Petty Officer 1st Class
- Joined
- May 19, 2008
- Messages
- 260
i just replaced my coils with sierra replacement coils for my 1971 evinrude 50
after all sorts of trouble shooting i've found the problem to be an intermittant sparkplug.
the plug is a QL77JC4 both are brandnew, 8 hours use.
obviously i will buy more plugs and keep replacements handy.
what causes new plugs to fail? are there alternatives to the champion plugs or a different series i should be using?
back in the day, if i burned a plug in my dirtbike; i went up or down a number in the same series of NGK plugs. does this hold true for outboards?
are there many alternatives or did i get a bad plug?
after all sorts of trouble shooting i've found the problem to be an intermittant sparkplug.
the plug is a QL77JC4 both are brandnew, 8 hours use.
obviously i will buy more plugs and keep replacements handy.
what causes new plugs to fail? are there alternatives to the champion plugs or a different series i should be using?
back in the day, if i burned a plug in my dirtbike; i went up or down a number in the same series of NGK plugs. does this hold true for outboards?
are there many alternatives or did i get a bad plug?