Kohler COMMAND CH18-745 Service Manual page 26

Air escaping from crankcase breather ................................................... Defective rings or worn cylinder.
Air escaping from exhaust system ......................................................... Defective exhaust valve.
Air escaping from carburetor ................................................................. Defective intake valve.
Gauge reading in "low" (green) zone ..................................................... Piston rings and cylinder in good condition.
Gauge reading in "moderate" (yellow) zone ........................................... Engine is still usable, but there is some
Gauge reading in "high" (red) zone ........................................................ Rings and/or cylinder have considerable
Leakdown Test Results
Troubleshooting
wear present. Customer should start
planning for overhaul or replacement.
wear. Engine should be reconditioned or
replaced.
Section 3
3
3.5