In case you ever need to buy a Flywheel puller for an GSX250F Across (all years) , the correct puller is a 30mm x 1.5mm-RH- Female The manual states the puller PN is 09930-30180 I bought mine on eBay for $40 delivered. Suzuki branded ones were not available from my dealer unless I wanted to wait a few weeks as they had to come from Japan
Been meaning to grab one of these. Trolling for the cheapest one as I usually do this looks like it would work ? https://www.ebay.com.au/itm/14mm-30...514?_trksid=p2349526.m4383.l4275.c10#viTabs_0
this is where I got mine from - https://www.ebay.com.au/itm/FLYWHEE...547978&hash=item1ea8f7e7ad:g:tB4AAOSw~7ZbMtG2
I just did a lookup on the part no's for the GJ72A flywheel and centre bolt vs. that of the GJ75A Across GSX250F... Both the flywheels and centre bolts are the same part no's between the two bikes (31402-05C00 & 09103-12028 respectively), so on that basis I'd imagine the same removal tool would work.