I have a 2002 400ex and I cant get the 18mm socket to fit in the tight space. Do I need a special socket or tool? Thanks for your help!!

 

I suggest using the one Honda gave you. It is conveniently located in the tool kit on the back of your bike.

 

KILLER250R,
You get the award for most helpful info of the day.
Chet

 

The only thing i've been able to get down there is the included honda plug wrench, and this one plug wrench out of dennis kirk.

 

i use a deep well socket (not 18mm its some a standard size) and an extention. its a tight fit but its possible.

 

every time i change my plug i use a snap on 18 mm thinwall socket and a 3 inch extension and it works perfect

 

Forgot all about the tool kit! Thanks for your help

 

you can use the tool that comes in your tool kit but if the spark plug its too tight the socket will expand and it wont come off. just go to any motorcycle dealer and you can buy or order the socket from MOTION PRO they are the only co. that makes the right socket for your 400 ex