Cub Cadet MTD 70 Series - Manual (Page 92)

61/65/70/75 Series Horizontal Shaft Engines
86
Module removal
1. Unplug the spark plug.
2. Remove the Heat box (snow engines) and intake
elbow by following the steps described in Chapter 3:
Air Intake Systems.
3. Unhook the spark plug wire from the clip in the car-
buretor insulator. See Figure 7.11.
4. Remove the recoil assembly by following the steps
described in Chapter 6: Starter.
5. Remove the blower housing.
6. Disconnect the lead that runs from the module to
the stop switch.
7. Remove the module using a 10mm wrench. m is
half-way between 2nd and 3rd reticle (10,000 V.)
Installing the module and setting the air gap
NOTE: If just setting the air gap, loosen the module
mounting screws first then follow the same
steps as described below.
1. Rotate the flywheel so that the magnets are away
from where the module is mounted.
2. Install the module. Do not tighten the module down.
3. Place a non-ferrous feeler gauge between the mod-
ule and the flywheel.
NOTE: The air gap should be 0.008” - 0.016” (0.2 -
0.4 mm).
4. Rotate the flywheel so that the magnets align with
the legs of the module while holding the feeler
gauge in place. See Figure 7.12.
5. Tighten the module mounting screws to a torque of
80 - 106 in-lbs (9 - 12 Nm).
6. Rotate the flywheel to remove the feeler gauge.
7. Install the blower housing and starter.
8. Hook the spark plug wire from the clip in the carburetor insulator.
9. Install the Heat box (snow engines) and intake elbow by following the steps described in Chapter 3: Air Intake
Systems.
10. Connect the spark plug wire to the spark plug.
11. Test run the engine before returning to service.
Figure 7.11
Unhook spark
plug wire
Figure 7.12
Magnet
0.010” feeler gauge