YARDMAX YB4628 User Manual

TROUBLESHOOTING
Problem Cause Remedy
Engine fails to start
1. Choke not in CHOKE position
2. Engine not primed
3. Engine is ooded
4. Spark plug wire loose or
disconnected
5. Fuel tank empty or stale fuel.
6. Faulty spark plug
7. Safety ignition key is not inserted
8. The engine oil level in the engine
crankcase is too low or too high
1. Move choke to CHOKE position
2. Prime engine as instructed in this manual
3. Wait a few minutes before restarting,
do not prime
4. Connect or tighten spark plug wire
5. Fill tank with clean, fresh gasoline
6. Clean, adjust gap, or replace
7. Insert safety ignition key
8. Add or drain oil to adjust the oil level in
the engine crankcase
Engine idles or runs
roughly
1. Engine running on CHOKE
2. Fuel tank is nearly empty or stale fuel
3. Contaminated fuel supply
4. Carburetor out of adjustment
5. Engine over-governed
6. Spark plug wire loose
7. Faulty spark plug
8. The engine oil level in the engine
crankcase is too low or too high
1. Move choke lever to RUN position
2. Fill tank with clean, fresh gasoline
3. Replace with clean fuel
4. Contact a qualied repair personnel
5. Contact a qualied repair personnel
6. Tighten spark plug wire
7. Clean, adjust gap, or replace
8. Add or drain oil to adjust the oil level in
the engine crankcase
Loss of power
1. Spark plug wire loose
2. Gas gap vent hole plugged
3. Dirty or clogged mufer
1. Tighten spark plug wire
2. Clean or replace fuel cap
3. Clean or replace mufer
The engine overheats Carburetor not adjusted properly Contact a qualied repair personnel
Excessive vibration Loose parts or damaged parts Tighten all fasteners or replace damaged parts.
Snow thrower fails to
self-propel
1. Auger clutch cable out of adjustment
2. Auger belt loose or damaged
1. Adjust auger clutch cable
2. Replace auger belt
18
Single-Stage Snow Blower
»
Operator’s Manual
Troubleshooting
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30230US25M100.indd 18 2016/9/3 11:04:18

YARDMAX YB4628 Specifications

General

Brand	YARDMAX
Model	YB4628
Category	Snow Blower
Language	English