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Diagnose & Troubleshoot Wood Chippers, Shredders & Vacuums
Select one of the symptoms below to find possible causes and common solutions for your MTD wood chipper, shredder or vacuum.
Engine fails to start
|Possible Causes||Corrective Actions|
1Throttle lever not in correct starting position
Move throttle lever to FAST or START position
Spark plug wire disconnected
Connect wire to spark plug
Choke not in CHOKE position (if equipped)
Move choke lever to CHOKE position (if equipped)
Fuel tank empty or stale fuel
Fill tank with clean, fresh gasoline
Engine not primed (if equipped)
Prime engine as instructed in your Engine Manual
Faulty spark plug
Clean, adjust gap, or replace spark plug
Safety switch must be depressed by the front tab on the bag handle when securing the bag
Safety switch not depressed
Connect safety switch wire to engine connector and ground to mounting bracket
Safety switch wire is not connected to engine or not properly grounded
Wait a few minutes to restart, but do not prime