The advantage of the short stroke is control, the cutting is less aggressive so ... control.
The procedure is in the manual, but here you go
Gather the tools, my new saw came with them all. 9 mm wrench, 4 mm Allen wrench, short steel rod ( I couldn't find the original so I used a cheap metal tent peg ).
Remove the access panel on the left side of the saw ( 4 mm Allen wrench )
Locate the hole in the larger section of the flywheel ( front of saw ). Insert the metal rod into the hole. This prevents the flywheel from moving. The original rod is just long enough to brace itself against the stand, but if you have to use a longer rod, you may need to hold it.
At the left side of the saw, using the 9 mm wrench, unscrew the bolt on the flywheel. Move the bolt to the alternate hole and tighten.
Remove rod from flywheel. Replace side panel.
Done.