Snapper YZ18426BVE, YZ20486BVE Troubleshooting, Starter Will Not Crank, Engine, Not Start

Models: YZ18426BVE, YZ20486BVE

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TROUBLESHOOTING

TROUBLESHOOTING

PROBLEM

 

PROBABLE CAUSE

Starter Will Not Crank

1. Battery dead.

Engine

2. Blown fuse.

 

3.

Electrical connections loose or corroded.

 

4.

Defective ignition switch.

 

5.

Blade engagement switch in the “ON” position.

 

6.

Park brake not engaged.

 

7.

Faulty parking brake, blade or ignition switch.

 

8.

Faulty engine starter.

 

9.

Faulty starter solenoid.

Engine Will Crank But

1. Fuel tank empty.

Not Start

2. Engine needs choking.

3.Spark plug wire disconnected.

4.Battery weak or dead.

5.Faulty parking brake, blade or ignition switch.

Engine Will Not Start 1. Blade engagement switch in the “ON” position. Using Recoil Starter 2. Park brake not engaged.

 

3.

Fuel tank empty.

 

4.

Engine needs choking.

 

5.

Blown Fuse.

 

6.

Faulty relay switch.

 

7.

Faulty parking brake or blade switch.

Engine Stalls After

1. Operator not in seat.

Running

2. Choke control in the “CHOKE” position.

3.Fuel tank empty.

4.Engine air pre-cleaner and or air cleaner dirty.

5.Spark plug defective or gap set improperly.

6.Fuel filter stopped up.

7.Water, debris or stale fuel in fuel system.

Engine Loses Power 1. Excessive load on engine.

2.Engine air pre-cleaner or air cleaner dirty.

3.Spark plug faulty.

4.Water, debris or stale fuel in fuel system.

5.Debris build up on engine cooling screen.

Engine Backfires When

1. Throttle control set too “FAST”.

Turned To “STOP”

 

 

 

 

Excessive Vibration

1. Damaged, out of balance or bent mower blades.

 

2.

Loose blade components.

 

3.

Loose or missing airlift (if equipped).

 

4.

Lumpy or frayed belt.

 

5.

Bent Idler, stationary or spindle pulley.

CORRECTIVE ACTION

1.Service battery.

2.Replace fuse.

3.Clean and check connections for good contact.

4.Contact authorized SNAPPER dealer.

5.Move blade engagement switch to “OFF”.

6.Engage park brake.

7.Contact authorized SNAPPER dealer.

8.Replace engine starter.

9.Replace starter solenoid.

1.Fill fuel tank with fresh fuel.

2.Move choke control to “CHOKE” position.

3.Place spark plug wire onto spark plug.

4.Service battery.

5.Contact authorized SNAPPER dealer.

1.Move blade engagement switch to “OFF”.

2.Engage park brake.

3.Fill fuel tank with fresh fuel.

4.Move choke control to “CHOKE” position.

5.Replace with new 20 AMP fuse.

6.Contact authorized SNAPPER dealer.

7.Contact authorized SNAPPER dealer.

1.Sit in operator’s seat.

2.Move choke control to “OFF” position.

3.Fill with fuel to proper level.

4.Clean free of all debris.

5.Service spark plug.

6.Replace fuel filter.

7.Drain and clean fuel system.

1.Lessen load.

2.Clean or replace filters.

3.Service spark plug.

4.Drain and clean fuel system.

5.Clean all debris from engine cooling screen.

1.Set throttle control to “SLOW” and allow engine to idle. Then, turn key to “OFF”.

1.Service mower blade(s).

2.Service and tighten loose parts.

3.Replace air lifts. Tighten to proper torque.

4.Replace belt.

5.Replace pulley.

(Trouble Shooting Continued on Next Page)

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Snapper YZ18426BVE, YZ20486BVE Troubleshooting, Starter Will Not Crank, Engine Will Crank But, Not Start, Running