How do you replace a friction wheel on an MTD snowblower?

To replace a friction wheel on an MTD snowblower, first, disconnect the spark plug wire for safety. Remove the cover that houses the friction wheel by unscrewing the bolts or screws. Take out the old friction wheel and install the new one, ensuring it aligns properly with the drive mechanism. Finally, reassemble the cover and reconnect the spark plug wire before testing the snowblower.