8
Troubleshooting
Problem
Cause
Remedy
Engine fails to start
1. PTO/Blade Engage knob engaged.
1. Place knob in disengaged (OFF) position.
2
3
. Parking brake not engaged.
2. Engage parking brake.
. Drive control levers not fully outward in
neutral position.
3. Move drive control levers fully outward in
neutral position.
4
5
. Spark plug wire(s) disconnected.
4. Connect wire(s) to spark plug(s).
. Throttle control lever not in correct starting
position.
5. Place throttle lever to FAST position.
6
7
. Choke not activated
6. Pull the CHOKE control outward.
. Fuel tank empty, or stale fuel.
7. Fill tank with clean, fresh (less than 30 days
old) gas.
8
9
. Blocked fuel line.
8. Clean fuel line and replace fuel filter.
9. Clean, adjust gap or replace plug(s).
. Faulty spark plug(s).
1
0.Engine flooded.
10.Crank engine with throttle in FAST position.
1. Push CHOKE control in.
Engine runs erratic
1. Unit running with CHOKE activated.
2
3
. Spark plug wire(s) loose.
2. Connect spark plug wire(s).
. Blocked fuel line or stale fuel.
3. Clean fuel line; fill tank with clean, fresh
gasoline and replace fuel filter.
4
5
. Vent in gas cap plugged.
4. Clear vent or replace cap if damaged.
. Water or dirt in fuel system.
5. Drain fuel tank. Refill with clean, fresh
gasoline.
6
. Dirty air cleaner.
6. Replace air cleaner paper element or clean
foam precleaner.
Engine overheats
1. Engine oil level low.
1. Fill crankcase with proper amount and
weight of oil.
2
. Air flow restricted.
2. Clean grass clippings and debris from around
the engine’s cooling fins and blower housing.
Engine hesitates at high
RPM
1. Spark plug(s) gap too close.
1. Remove spark plug(s) and reset the gap.
Engine Idles rough
1. Spark plug(s) fouled, faulty or gap too wide.
. Dirty air cleaner.
1. Replace spark plug(s). Set plug gap.
2
2. Replace air cleaner element and/or clean
pre-cleaner.
Excessive vibration
1. Cutting blade loose or unbalanced.
1. Tighten blade and spindle.
2
. Damaged or bent cutting blade.
2. Replace blade.
Uneven cut
1. Deck not leveled properly.
1. Perform side-to-side deck adjustment.
2
. Dull blade.
2. Sharpen or replace blade.
3
. Uneven tire pressure.
3. Check tire pressure in all four tires.
Mower will not mulch grass
1. Engine speed too low.
1. Place throttle in FAST (rabbit) position.
(If Equipped w/Mulching
Kit)
2
. Wet grass.
2. Do not mulch when grass is wet.
3
. Excessively high grass.
3. Mow once at a high cutting height, then
mow again at desired height or make a
narrower cutting swath.
4
. Dull blade.
4. Sharpen or replace blade.
31
| Categories | Lawn Mower Manual, MTD Lawn Mower Manuals, Troy-Bilt Lawn Mower Manuals |
|---|---|
| Tags | MTD RZT, Troy-Bilt RZT |
| Download File |
|
| Document Type | Owner's Manual |
| Language | English |
| Product Brand | MTD, Lawn Mower |
| Product Type | Walk Behind Mower |
| Document File Type | |
| Publisher | mtdproducts.com |
| Wikipedia's Page | MTD Products |
| Copyright | Attribution Non-commercial |
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