4 Stroke Engine Replacement Part # 35 -- Ignition Stator
The Capacitor Discharge Ignition or CDI unit helps deliver optimal spark to the spark plug in order to increase burn rate and allow for the proper combustion within the cylinder.
The CDI on a 4-stroke engine is slightly different than the 2-stroke mainly because the magneto/stator is contained within the CDI unit. The 4-stroke CDI must have the air gap checked between the Flywheel Magneto (item# 4S-EP-MRC#46) and the CDI unit to make sure that there is a .017 in clearance between the two. Be sure to follow replacement tips and procedures to get the proper gap.