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onlyme
11-21-2003, 01:44 PM
Help Quick! I need to know how big to go on the gap for my spark plug. It is a stock 400 ex with a k/n filter. :huh
YLW400
11-21-2003, 02:06 PM
If it is a DPR9Z or DPR8Z, it should be on...I never have to gap mine....
JOEX
11-21-2003, 08:17 PM
Spark plug gap is .6-.7mm
Woodsrider
11-22-2003, 07:28 AM
If it is a DPR9Z or DPR8Z, it should be on...I never have to gap mine....

this is true for the most part, but in the event you need to regap it, the gap requirement is on the lable on the front of the frame.