Jim Crenca
LIFETIME SPONSOR
- Mar 18, 2001
- 509
- 0
The shop manual for my 1994 KDX calls for a B9ES spark plug yet most of the posts refer to B8ES. Do the newer bikes use a different plug? Also, is there ever a need to change heat ranges due to engine mods (like pipe, silencer, airbox, or RB Designs carb mods)?