Johnson seahorse spark plug

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Charlie_merrifi

Member
Joined
Apr 2, 2010
Messages
221
Location
Salem
I have a 15 hp seahorse that I want to change the plug in. Does it take special plugs or. Will automotive ones work
 
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Combat Chuck

Active member
Joined
Feb 1, 2008
Messages
586
Location
Lebanon, Oregon
I think they usually recommend a small engine plug but I just pulled auto ones out of my 6hp kicker... So they must work. Im actually changing mine tonight and getting my plugs from shucks. Search online the the year and brand of the Johnson and you should find all the info.
 
Chromatose

Chromatose

Active member
Joined
May 27, 2009
Messages
545
Champion UL81C plugs
 
C

Combat Chuck

Active member
Joined
Feb 1, 2008
Messages
586
Location
Lebanon, Oregon
Put in the new champions last night. My 76' Evinrude now starts on the second pull:dance:
 
T

Thuggin4Life

Well-known member
Joined
Apr 10, 2009
Messages
3,778
Location
Springfield, Oregon
Different motors take different plugs. look online and you can find the right ones or go to a boat shop and buy them. I had the wrong ones in my evinrude and it wasn't running right so i took it to the shop and they pulled a plug and said whoops we put the wrong ones in and switched them out and it ran fine afterwards.
 

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