[What size scoket is a 400 ex Spark plug] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

Pages:1

What size scoket is a 400 ex Spark plug
(Click here to view the original thread with full colors/images)

Posted by: ride_red_5400ex

What size scoket is a 400 ex Spark plug and how do i take it out

Posted by: BIGRED400

Up front in the middle of the head............LEFTY LOOSEY, RIGHTY TIGHTY

Posted by: lil400exman

quote:
Originally posted by ride_red_5400ex
What size scoket is a 400 ex Spark plug and how do i take it out

if you dont know that you shouldnt own anything with an engine

Posted by: 250EXstud

most of my sockets don't fit down into that hole so the 400 spark plug wrench is really helpful.

Posted by: 400EXrider77

you have to get the honda one

Posted by: BSTURDIVANT

It's 18mm -we cut the outside down on a craftsman deep socket for ones that are really tight!

Posted by: dasheek

i lost my wrench so i took an old 18mm deep weel and took it to the bench grinder untill i got her down enough to fit. Kind of a sketchy idea but hey who cares it works.

Posted by: 02Yellow400

you can buy an 18mm thinwall deep socket

Posted by: brandonpeake

the old 300 fourtrax sparkplug wrenchs will work on the 400ex also and are alot better than the 400ex sockets from honda