Trouble Shooting Guide - MTD Yard Machines 450 Series Operator's Manual

3. Refer to the engine manual for correct engine
storage instructions.
4. Wipe tines with oiled rag to prevent rust.
5. Store tiller in a clean, dry area. Do not store next
to corrosive materials, such as fertilizer.
SECTION 11: TROUBLE SHOOTING GUIDE
Trouble Possible Cause(s)
Engine fails to Fuel tank empty, or stale fuel.
start
Throttle control lever not in correct
starting position (if so equipped).
Blocked fuel line.
Dirty aircleaner.
Choke not in ON position.
Spark plug wire disconnected.
Faulty spark plug.
Engine flooded.
Engine runs Unit running on CHOKE.
erratic Spark plug wire loose.
Blocked fuel line or stale fuel.
Vent in gas cap plugged.
Water or dirt in fuel system.
Dirty air cleaner.
Carburetor out of adjustment.
Engine over- Engine oil level low.
heats Dirty air cleaner.
Air flow restricted.
Carburetor not adjusted properly.
Tines do not Foreign object lodged in tines.
engage Tine clevis pin(s) missing.
Pulley and idler not in correct
adjustment.
Not shifting properly.
Control cable not adjusted properly.
Belt worn and/or stretched.
Tines skip over Improper rotation.
ground
Wheels do not Clevis pin missing.
engage Tiller is not being shifted properly.
Control cable not adjusted properly.
Belt worn and/or stretched.
NOTE: For repairs beyond the minor adjustments above, contact your local authorized service dealer.
NOTE: When storing any type of power equipment
in an unventilated or metal storage shed, care
should be taken to rustproof the equipment. Using a
light oil or silicone, coat the equipment, especially
any springs, bearings and cables.
Corrective Action
Fill tank with clean, fresh gasoline. Fuel will not last over
thirty days unless a fuel stabilizer is used.
Move throttle lever to start position.
Clean fuel line.
Refer to the engine manual packed with your unit.
Move switch to ON position.
Connect wire to spark plug.
Clean, adjust gap or replace.
Refer to the engine manual packed with your unit.
Move choke lever to OFF position.
Connect and tighten spark plug wire.
Clean fuel line; fill tank with clean, fresh gasoline. Fuel will
not last over thirty days unless a fuel stabilizer is used.
Clear vent.
Drain fuel tank. Refill with fresh fuel.
Refer to the engine manual packed with your unit.
Refer to the engine manual packed with your unit.
Fill crankcase with proper oil.
Refer to the engine manual packed with your unit.
Refer to the engine manual packed with your unit.
Adjust carburetor as instructed in separate engine manual.
Dislodge foreign object.
Replace tine clevis pin(s).
Take unit to authorized service dealer.
Refer to Controls section of operator's manual for proper
shifting procedures.
Adjust control cable (see assembly instructions).
Replace belt.
Forward rotation should only be used on soil that has
already been tilled, not on virgin soil.
Replace clevis pin.
Refer to Controls section of operator's manual for proper
shifting procedures.
Adjust control cable (see assembly instructions).
Replace belt.
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