[Reel_Karma]

Went to change the plugs on my F20 Yamaha and none of my spark plug sockets fit(or any in the set). Any recommendations?

Thanks

 

[Brett]

5/8", 13/16" or 15/16" are the only size plug sockets I've ever needed.
That goes for vehicles, outboards, and lawn equipment.

 

[DuckNut]

Deep well of whatever size fits.

 

[Tommysmicroskiff]

Tow the boat to a NAPA store and pick out the right one

I have an odd ball plug size on a Yamaha also 18 mm I think ?

 

[Reel_Karma]

Tow the boat to a NAPA store and pick out the right one

I have an odd ball plug size on a Yamaha also 18 mm I think ?

18mm it was.  Thanks for all the help.