1987 50hp spark plugs

farkeldc

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Apr 29, 2008
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I have a 1987 50hp Force--507x7c--and I'm trying to make sure that I have the correct spark plugs. The current plugs in the motor are Champion L82C.
I've found this to be the correct # on at least one listing. Champion's website shows UL81C for this motor. Any input on this subject would be welcome. Thank you.
 

sweezy722

Petty Officer 3rd Class
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Feb 5, 2007
Messages
78
Re: 1987 50hp spark plugs

My manual states

1984-1987B Champion UL81C
1987C-1989A Champion UL18V

Both gaped at .30 in.
 
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