Compression for kohler magnum
I need the allowable for a kohler magnum modles m18 and m20 Thanks Joe
Forum Discussion
On page 31 of the service manual:
To test compression:
1. Remove the spark plugs. Install compression tester In each spark plug hole.
2. Set the throttle and choke controls to the wide open position. Make sure air cleaner and exhaust system are not restricted.
3. Crank the engine using the starter motor. Take several readings for both cylinders.
If the difference in pressure between cylinders is 15 percent or greater, or pressure is less than 90 psi, check for the conditions below:
To test compression:
1. Remove the spark plugs. Install compression tester In each spark plug hole.
2. Set the throttle and choke controls to the wide open position. Make sure air cleaner and exhaust system are not restricted.
3. Crank the engine using the starter motor. Take several readings for both cylinders.
If the difference in pressure between cylinders is 15 percent or greater, or pressure is less than 90 psi, check for the conditions below:
