No idea what the thread is but if you need to pull a Pilot flywheel I have the Honda puller can send when I get back from Florida.
$29.95 is a steal think mine cost 45.00 from Honda
http://www.repairmanual.com/online/flyw ... 0false%3b/If this info is correct you might try to find one at a local stealer.
Flywheel puller for Suzuki TM/MX Series 125/250/400 all years, TS250 Enduros. Also know to fit LT-F160N Quadrunner models. EARLY DR 4 STROKE MODELS.
FL400 Pilot flywheel puller cross reference
Honda part number is
07KMC-HE00100 ROTOR PULLERhttp://www.partzilla.com/parts/detail/h ... MgodiV0AKgBelow are pictures I found on those links just for future reference.