Troubleshooting - Troy-Bilt 466 Operator's Manual

• Inspect and replace/sharpen blade, if required.
Refer to page 12.
Gasoline
• Do not store gasoline from one season to another.
NOTE: Gasoline, stored for more than one month, may
affect engine performance. So use fresh gasoline.
• Replace your gasoline can if it starts to rust. Rust
and/or dirt in the gasoline will cause problems.
Engine
• Clean engine and remove any grass clippings, dirt,
and debris from the cooling fins, air intake screen,
levers, linkage and the exterior of the engine.
• Follow recommendations in engine manual for off-
season storage of the engine.
• Change oil as stated in the engine manual.
Storage
• Store unit in a clean, dry area. Do not store next to
corrosive materials, such as fertilizer or rocksalt.
• If storing the mower in an unventilated or metal
storage shed, make sure to rustproof the
equipment with a light oil or silicone.
SECTION 10: TROUBLE-SHOOTING GUIDE
Problem Possible Cause Corrective Action
Engine fails to start 1. Blade control handle disengaged 1. Engage blade control handle
2. Spark plug wire disconnected 2. Connect wire to spark plug
3. Fuel tank empty, or stale fuel 3. Fill up tank with fresh gasoline
4. Blocked fuel line 4. Clean fuel line
5. Faulty spark plug 5. Clean, adjust gap, or replace
6. Engine flooded 6. Wait a few minutes and start again
Engine runs erratic 1. Spark plug wire loose 1. Connect and tighten spark plug wire
2. Blocked fuel line or stale fuel 2. Clean fuel line, fill tank with fresh gas
3. Vent in gas cap plugged 3. Clear vent
4. Water or dirt in fuel system 4. Drain fuel tank. Refill with fresh fuel
5. Dirty air cleaner 5. Clean air cleaner. Refer to engine
manual
Engine overheats 1. Engine oil level low 1. Fill crankcase with proper oil
2. Air flow restricted 2. Clean lawn mower engine
Occasional skip at 1. Spark plug gap too close 1. Adjust gap to.030 inches
high speed
Idles poorly 1. Spark plug fouled, faulty, or gap too wide 1. Reset gap to.030 inches or replace
spark plug
2. Dirty air cleaner 2. Clean air cleaner
Excessive vibration 1. Cutting blade loose or unbalanced 1. Tighten blade and adapter, balance
blade
2. Bent cutting blade 2. Replace blade
3. Bent engine crankshaft 3. Contact your nearest service center
Mower wilt not 1. Wet grass 1. Wait until grass is dry to cut
mulch grass 2. Excessively high grass 2. Mow once at a high cutting height,
3. Dull blade then mow again at desired height
3. Sharpen or replace blade
Uneven cut 1. Wheels not in same height position 1. Reposition all wheels at same height
2. Dull blade 2. Sharpen or replace 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.
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