I went to change my plugs yesterday afternoon and found that my dealer had put the Iridium's in it last October. They didn't looked burned up or anything to me, but what is a good indicator that it's time for them to be changed? Motor probably has about 30 - 40 hours on it since they were changed.
'05 Stratos 200 ProXL, '05 Evinrude 225HO
here's something i learned last year on my 225 HO 2003. Go to this website and purchase your spark plugs online. they are at least 7.00 a piece cheaper than the marinas. Then, make sure you index your plugs. I change mine 2 times a year depending on how much idling i do.
http://www.championsparkplugs.com/Default.asp
just put in the champion number from old plug in the part number on the page.
Modified by bhinkle at 2:42 PM 5/8/2008
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