Spark Plug Ratchet Size?

Question

Anyone know the ratchet size for a '97 ninja 500? Ive tried everything i have and nothing seems to fit the plug! I dont understand. 5/8 seems to small for it, 11/16 seems to big, what gives?

Answer 1

18mm or 5/8 (same thing)

You need a thin wall socket to fit in the recessed spark plug hole.

http://www.motionpro.com/motorcycle/tool...

Use the spark plug socket that's in the bike's tool kit.

Answer 2

There Are 4 different SOCKET Sizes. 9/16, 5/8, 3/4, 13/16.  They all use the SAME RATCHET SIZE (3/8 ")

It needs to be a deep socket to fit the spark plug and preferably padded a bit to keep the plug ceramic from chipping.

Answer 3

Try 18 mm

Answer 4

i say go metric as well... i used all my spark plug sockets on my spark plug, and none of them fit it either... i took it out (there's no room for a wrench to fit, only a socket wrench, so i had to take it out to find out it's size) and put it through the box ends of my metric wrenchs... if i'm not mistaken it was 14mm... (granted i don't own ninja... but a foreign bike none the less... and if i'm not mistaken kawasaki are japanese?)

Answer 5

try metric.