KZ650 flywheel puller

Hello. Has anyone had issues with the Motion Pro Flywheel Puller ? 1978 KZ650B2A. It does not fit my flywheel... It’s like it is 1mm too big around.

M18X1.5 R.H. External Thread
Flywheel Puller, M18X1.5 R.H. External Thread
Equivalent to Honda tool 07933-4250000, Kawasaki tool 57001-254
Used for removal of the flywheel or rotor if applicable
Premium quality high carbon steel
Heat treated for strength and durability
Durable hot black oxide finish
Laser etched with Motion Pro logo and part number
Use “Search by Vehicle” to determine the correct flywheel puller for your specific application
Lifetime Limited Warranty
Part No. 08-0116
$10.50
orders of $59.99 or more ship for free

I used my rear axle bolt and a strap wrench and the flywheel came off no problems.

I think I should have posted this in the tools section. Sorry. Anyway, I looked at the flywheel a little closer and it is a M16 diameter. Um, why M16 ? Aren’t the 650’s supposed to take an M18 puller ? Weird

I also used the rear axle.
Threaded it in, and tapped gently on the end.

They use different size threading for different years, so one size does not fit them all. It's been many a year ago since I removed one, but I seem to remember the center bolt below the handlebars that goes down in the triple clamp was the correct size if the motorcycle used the smaller threads, and as mentioned, the rear axle bolt otherwise.