Troubleshooting - Troy-Bilt 466 Operator's Manual

SECTION 10: TROUBLE-SHOOTING GUIDE
Problem Possible Cause
Engine fails to start 1. Blade control handle disengaged
2. Spark plug wire disconnected
3. Fuel tank empty, or stale fuel
4. Blocked fuel line
5. Faulty spark plug
6. Engine flooded
Engine runs erratic 1. Spark plug wire loose
2. Blocked fuel line or stale fuel
3. Vent in gas cap plugged
4. Water or dirt in fuel system
5. Dirty air cleaner
Engine overheats 1. Engine oil level low
2. Air flow restricted
Occasional skip at 1. Spark plug gap too close
high speed
Idles poorly 1. Spark plug fouled, faulty, or gap too wide
2. Dirty air cleaner
Excessive vibration 1. Cutting blade loose or unbalanced
2. Bent cutting blade
3. Bent engine crankshaft
Mower will not 1. Wet grass
mulch grass 2. Excessively high grass
3. Dull blade
Uneven cut 1. Wheels not in same height position
2. Dull blade
NOTE: For repairs beyond the minor adjustments listed above, contact your nearest authorized service dealer.
Refer to separate engine manual packed with your mower for more engine related information.
Corrective Action
1. Engage blade control handle
2. Connect wire to spark plug
3. Fill up tank with fresh gasoline
4. Clean fuel line
5. Clean, adjust gap, or replace
6. Wait a few minutes and start again
1. Connect and tighten spark plug wire
2. Clean fuel line, fill tank with fresh gas
3. Clear vent
4. Drain fuel tank. Refill with fresh fuel
5. Clean air cleaner. Refer to engine
manual
1. Fill crankcase with proper oil
2. Clean lawn mower engine
1. Adjust gap to.030 inches
1. Reset gap to.030 inches or replace
spark plug
2. Clean air cleaner
1. Tighten blade and adapter, balance
blade
2. Replace blade
3. Contact your nearest service center
1. Wait until grass is dry to cut
2. Mow once at a high cutting height,
then mow again at desired height
3. Sharpen or replace blade
1. Reposition all wheels at same height
2. Sharpen or replace blade
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