optimax sparkplugs
weasel
Posted 7/3/2010 4:52 PM (#92570)
Subject: optimax sparkplugs


Member

Posts: 91

Location: West Bend, WI
A few years ago I bought a used boat and motor. The previous owner said he had just replaced the sparkplugs and the motor ran great. When I went to change the plugs, "just because"........I notice they were AUTOLITE spark plugs. I ultimately spent the money on NGK plugs, but I am asking if anyone knows, should you run the expensive plugs or are autolite OK?
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Pal
Posted 7/4/2010 12:19 PM (#92585 - in reply to #92570)
Subject: RE: optimax sparkplugs


Member

Posts: 18

Location: Twin Cities, MN
I have only used NGK's

I believe the below is the Mercury recommendation.

IZFR5G@ .032-.033" for Standard Opti's 135-225HP

Pal
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