Originally Posted by
Allumina
Hey Monty what plugs do I want in these motors?
Also...man that Toro sure is sooooo quiet compared to the 21-4, is it just the different exhaust?
Everythings been fantastic so far...4 tanks on each mill so far
more than likely , the 86 series pipes are loud but make awesome power . the torque pipes are usually a bit quieter . it might be a little bit to do with the extra long stroke also .