Kohler — 4. Remove the hex. nuts and plain washers using the

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

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Procedure

1. 2. The cylinder barrels are already identified as #1 or
2. #2 by a mark stamped near the valve cover/
3. breather gasket surface.
4. 3. Identify other engine components, such as the
5. valves, pistons, connecting rods and rod caps,
6. and vaive tappets, prior to removal or
7. disassembly.
8. 1. Remove the spark plugs from cylinder heads.
9. 2. Remove the hex. cap screws, plain washers, cyl-
10. inder heads, and gaskets. Refer to Figure 9-22.
11. WB Hex Nuts And
12. Plain Washers (6)
13. Cylinder
14. Barrel
15. Barrel
16. Wrench
17. Figure 9-23. Removing Cylinder Barrel Fasteners.

Source: manual:Magnum_M18_and_M20_Service_Manual.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.