Cub Cadet MTD P71 Series - Manual (Page 79)

Ignition System
73
Troubleshooting the flywheel
To Troubleshoot the flywheel:
1. Remove the engine shroud.
NOTE: Failure of the magnets in the flywheel is exceed-
ingly rare.
2. Test the magnets by holding an item made of ferrous
metal roughly 1/4” (.635cm) away from the magnets
in the flywheel. See Figure 7.4.
NOTE: It should be drawn to the flywheel. A wrench or
screwdriver is suitable for this test.
3. Check the polarity of the magnets using a magnetic
compass or bar magnet.
NOTE: The magnets must be installed opposite magnetic
poles facing out. See Figure 7.5.
4. Remove the recoil assembly by following the steps
describe in Chapter 6: Starter.
5. Remove the flywheel by following the steps
described in the flywheel section of this chapter.
6. Inspect the flywheel key and the keyway on the crank
shaft.
NOTE: A sheared flywheel key will throw off the ignition
timing.
NOTE: If the flywheel key is damaged, replace it. If the
keyway on the crankshaft is damaged, the engine
must be short blocked.
Figure 7.4
Magnets
Figure 7.5
Figure 7.6
Flywheel key