Yard Machines 559 Lawn Mower User Manual


 
15
Change oil if it has not been changed in the last
three months. For instructions on how to change oil,
refer to the engine manual.
Clean engine and remove any grass clippings.
Other
Do not store gasoline from one season to another.
Replace your gasoline can if it starts to rust. Rust
and/or dirt in the gasoline will cause problems.
Store unit in a clean, dry area. Do not store next to
corrosive materials, such as fertilizer.
NOTE: If storing in an unventilated or metal storage
shed, be certain to rustproof the equipment by coating
with a light oil or silicone.
SECTION 9: TROUBLE-SHOOTING
NOTE: For repairs beyond the minor adjustments listed above, contact your local authorized service dealer.
Problem Possible Cause Corrective Action
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
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 to restart, Do not prime.
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
1. Connect and tighten spark plug wire.
2. Clean fuel line, fill tank with fresh gasoline.
3. Clear vent.
4. Drain fuel tank. Refill with fresh fuel.
5. Clean air cleaner. Refer to engine manual.
Engine overheats 1. Engine oil level low
2. Air flow restricted
1. Fill crankcase with proper oil.
2. Clean lawn mower engine.
Occasional skip
(hesitates) at high
speed
1. Spark plug gap too close 1. Adjust gap to.030 inches.
Idles poorly 1. Spark plug faulty, or gap too wide
2. Dirty air cleaner
1. Reset gap to.030 inches or replace spark plug.
2. Clean air cleaner.
Excessive vibration 1. Blade loose or unbalanced
2. Bent cutting blade
3. Bent engine crankshaft
1. Tighten blade and adapter, balance blade.
2. Replace blade.
3. Contact the nearest service center
Mower will not
mulch grass
1. Wet grass
2. Excessively high grass
3.
4. Dull blade
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.
Uneven cut 1. Wheels not at same height
2. Dull blade
1. Reposition all wheels at same height.
2. Sharpen or replace blade.