Troy-Bilt Storm 2620 Operation Manual - Page 24

Troubleshooting - carburetor

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Troubleshooting 8 Problem Cause Remedy Engine fails to start Engine running erratically/ inconsistent RPM (hunting or surging) Engine overheats Excessive vibration Loss of power Unit fails to propel itself Unit fails to discharge snow Chute fails to easily rotate 180 degrees 24 1. Choke not in CHOKE position. 2. Spark plug wire disconnected. 3. Fuel tank empty or stale fuel. 4. Engine not primed. 5. Faulty spark plug. 6. Key not in ignition on engine. 7. Extension cord not connected (when using electric start button, on models so equipped). 1. Engine running on CHOKE. 2. Stale fuel. 3. Water or dirt in fuel system. 4. Carburetor out of adjustment. 5. Engine over-governed. 1. Carburetor not adjusted properly. 1. Loose parts or damaged auger. 1. Spark plug wire loose. 2. Gas cap vent hole plugged. 1. Move choke to CHOKE position. 2. Connect wire to spark plug. 3. Fill tank with clean, fresh gasoline. 4. Prime engine as instructed in the Operation section. 5. Clean, adjust gap, or replace. 6. Insert key fully into the switch. 7. Connect one end of the extension cord to the electric starter outlet and the other end to a three-prong 120-volt, grounded, AC outlet. 1. Move choke lever to RUN position. 2. Fill tank with clean, fresh gasoline. 3. Drain fuel tank. Refill with fresh fuel. 4. Contact an authorized Service Center. 5. Contact an authorized Service Center. 1. Contact an authorized Service Center. 1. Stop engine immediately and disconnect spark plug wire. Tighten all bolts and nuts. If vibration continues, have unit serviced by an authorized Service Center. 1. Connect and tighten spark plug wire. 2. Remove ice and snow from gas cap. Be certain vent hole is clear. 1. Drive control cable in need of adjustment. 2. Drive belt loose or damaged. 3. Friction wheel worn. 1. Chute assembly clogged. 2. Foreign object lodged in auger. 3. Auger control cable in need of adjustment. 4. Auger belt loose or damaged. 5. Shear pin(s) sheared. 1. Chute assembled incorrectly. 1. Adjust drive control cable. Refer to Maintenance & Adjustments section. 2. Replace drive belt. Refer to Service section 3. Replace friction wheel. Refer to Service section. 1. Stop engine immediately and disconnect spark plug wire. Clean chute assembly and inside of auger housing with clean-out tool or a stick. 2. Stop engine immediately and disconnect spark plug wire. Remove object from auger with cleanout tool or a stick. 3. Refer to Auger Control Test. 4. Refer to Maintenance & Adjustments section. 5. Replace with new shear pin(s). 1. Disassemble chute control and reassemble as directed in the Assembly section.

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Troubleshooting
8
24
Problem
Cause
Remedy
Engine fails to start
Choke not in CHOKE position.
1.
Spark plug wire disconnected.
2.
Fuel tank empty or stale fuel.
3.
Engine not primed.
4.
Faulty spark plug.
5.
Key not in ignition on engine.
6.
Extension cord not connected (when
7.
using electric start button, on models so
equipped).
Move choke to CHOKE position.
1.
Connect wire to spark plug.
2.
Fill tank with clean, fresh gasoline.
3.
Prime engine as instructed in the Operation
4.
section.
Clean, adjust gap, or replace.
5.
Insert key fully into the switch.
6.
Connect one end of the extension cord to the
7.
electric starter outlet and the other end to a
three-prong 120-volt, grounded, AC outlet.
Engine running erratically/
inconsistent RPM (hunting
or surging)
Engine running on CHOKE.
1.
Stale fuel.
2.
Water or dirt in fuel system.
3.
Carburetor out of adjustment.
4.
Engine over-governed.
5.
Move choke lever to RUN position.
1.
Fill tank with clean, fresh gasoline.
2.
Drain fuel tank. Refill with fresh fuel.
3.
Contact an authorized Service Center.
4.
Contact an authorized Service Center.
5.
Engine overheats
Carburetor not adjusted properly.
1.
Contact an authorized Service Center.
1.
Excessive vibration
Loose parts or damaged auger.
1.
Stop engine immediately and disconnect spark
1.
plug wire. Tighten all bolts and nuts. If vibration
continues, have unit serviced by an authorized
Service Center.
Loss of power
Spark plug wire loose.
1.
Gas cap vent hole plugged.
2.
Connect and tighten spark plug wire.
1.
Remove ice and snow from gas cap. Be certain
2.
vent hole is clear.
Unit fails to propel itself
Drive control cable in need of adjustment.
1.
Drive belt loose or damaged.
2.
Friction wheel worn.
3.
Adjust drive control cable. Refer to Maintenance
1.
& Adjustments section.
Replace drive belt. Refer to Service section
2.
Replace friction wheel. Refer to Service section.
3.
Unit fails to discharge snow
Chute assembly clogged.
1.
Foreign object lodged in auger.
2.
Auger control cable in need of
3.
adjustment.
Auger belt loose or damaged.
4.
Shear pin(s) sheared.
5.
Stop engine immediately and disconnect spark
1.
plug wire. Clean chute assembly and inside of
auger housing with clean-out tool or a stick.
Stop engine immediately and disconnect spark
2.
plug wire. Remove object from auger with clean-
out tool or a stick.
Refer to Auger Control Test.
3.
Refer to Maintenance & Adjustments section.
4.
Replace with new shear pin(s).
5.
Chute fails to easily rotate
180 degrees
Chute assembled incorrectly.
1.
Disassemble chute control and reassemble as
1.
directed in the Assembly section.