H2 Rotor Puller
Hermosa Beach, CA
Tech tip: Since H2 magneto rotor
pullers are not available, and I could not find a 10 x 1.25 x 110mm screw to
fashion into a puller, I made one 1.25 x 35mm screw and a piece of 1/4" rod as
Drill 1/4" hole approximately 3/16" into end of machine screw (salvaged from
triple tree clamp or ?). Cut approximately 1-1/2" of 1/4" rod (or shank from
1/4" hardened bolt) and insert in tip of 10 x 1.215 machine screw. Now grease
the threads and remove the rotor! Be
sure to reinstall with anti-seize compound.
A shock bolt or fork clamp bolt may work...
The trick is to shock it off. A recipe for success usually
Make sure threads in rotor are clean
Tighten it until you think it's about to strip
Hit the bolt (never the rotor)
with a 2 pound hammer. Don't wail into it and don't pretend. It needs a smart
Repeat as necessary - it will come off between hit 1 and hit 4, 99 times out of
the '73 S2A you can use the swingarm bolt - it is beefy and full bore - with a
smear of grease on the end and a light touch of the air wrench, it pulls the
rotor right off.