is there a special chemical i use or can i use just plain old wd-40, thanks please reply

 

A product called dry slide or equivelent, available at TSC. Don't use a gummy chain lube like pro honda'S(but some dry chain lubes should be superb)... WD-40 is batch dependent, but they have a better formula anymore, less 'tar'[to get things jammed and sticky in storage] in it after the lighter petroleums sublimate.