Cub Cadet MTD 90 Series - Manual (Page 109)

Cylinder head
103
10. Test the valves for leaks by:
10a. Place the cylinder head on a couple of wood blocks with the valves facing up.
10b. Pour a small amount of gasoline or parts cleaning solvent into the combustion chamber (just enough to
cover the valves).
10c. Let the cylinder head sit for ten minutes.
10d. Check for gasoline leaking out of the intake and exhaust ports.
11. Install the cylinder head by following the steps described earlier in this chapter.
12. Set the valve lash by following the steps described in Chapter 1: Introduction.
13. Test run the engine in a safe area before returning it to service. Check all safety features.