400ex spark plug

[forum]

What size is the spark plug wrench. I can't for the life of me find one that works.

[out4sand]

The only one that I have found that works worth a darn is the cheep-o wrench that came in the tool kit.

http://www.out4sand.com (www.out4sand.com)

[Mity Mo]

For about 20 bucks Motion Pro makes a socket for it that is the greatest. I tried every socket I have in my arsenal and the Motion Pro is the best. Mo:p

[forum]

thanks. but All im looking for is the socket size

[Lynch01ex]

18mm

[forum]

thanks.