Kohler — Fabricating a Flywheel Holding Tool from Salvaged Ring Gear

A Kohler service procedure — check it applies to your exact model before use.

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Procedure

1. Using an abrasive cut-off wheel, cut out a six tooth segment of ring gear as shown.
2. Grind off any burrs or sharp edges.
3. Invert segment and place it between ignition bosses on crankcase so tool teeth engage flywheel ring gear teeth. Bosses will lock tool and flywheel in position for loosening, tightening, or removing with a puller.

Source: manual:Kohler Engine SM_1669001_ZT710_ZT720_ZT730_ZT740.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.