Troubleshooting Guide (continued)

ENGINE DOES NOT START

What To Check

Does the engine crank?

YES

Good compression?

YES

Does the tank contain fresh fuel of the proper grade?

YES

Is fuel visible and moving in the return line when priming?

 

 

 

Possible Cause

 

NO

 

Faulty recoil starter.

 

 

 

 

Fluid in the crankcase.

 

 

 

Internal damage.

 

NO

 

Loose spark plug.

 

 

 

 

NO

 

Excess wear on cylinder, piston, rings.

 

 

 

 

Fuel incorrect, stale, or contaminated; mixture

 

 

 

 

 

incorrect.

 

NO

 

Check for clogged fuel filter and/or vent.

 

 

 

 

 

 

 

 

Remedy

Consult with an authorized servicing dealer.

Tighten and re-test.

Consult with an authorized servicing dealer.

Refill with fresh, clean unleaded gasoline with a pump octane of 87 or higher mixed with 50:1 Shindaiwa Premium 2-cycle mixing oil or with an equivalent high quality 2-cycle mixing oil.

Replace fuel filter or vent as required. Restart.

YES

Is there spark at the spark plug wire terminal?

YES

Check the spark plug.

The ignition switch is in “O” (OFF) position.

 

NO

Shorted ignition ground.

 

 

 

 

 

Faulty ignition unit.

 

 

 

If the plug is wet, excess fuel may be in the cylinder.

The plug is fouled or improperly gapped.

The plug is damaged internally or of the wrong size.

Move switch to “I” (ON) position and restart.

Consult with an authorized servicing dealer.

Crank the engine with the plug removed, reinstall the plug, and restart.

Clean and regap the plug to 0.6mm-0.7mm. Restart.

Replace the plug. See “Specifications” for the correct plug for your unit. Restart.

LOW POWER OUTPUT

What To Check

Possible Cause

Remedy

Is the engine overheating?

Operator is overworking the unit.

Carburetor mixture is too lean.

Improper fuel ratio.

Fan, fan cover, cylinder fins dirty or damaged.

Carbon deposits on the piston or in the muffler.

Cut at a slower rate.

Consult with an authorized servicing dealer.

Refill with fresh, clean unleaded gasoline with a pump octane of 87 or higher mixed with 50:1 Shindaiwa Premium 2-cycle mixing oil or with an equivalent high quality 2-cycle mixing oil.

Clean, repair or replace as necessary.

Consult with an authorized servicing dealer.

Engine is rough at all speeds. May also have black smoke and/or unburned fuel at the exhaust.

Clogged air cleaner element. Loose or damaged spark plug.

Air leakage or clogged fuel line.

Water in the fuel.

Piston seizure.

Faulty carburetor and/or diaphragm.

Clean or replace the air filter.

Tighten or replace the plug. See “Specifications” for the correct plug for your unit. Restart.

Repair or replace fuel filter and/or fuel line.

Refill with fresh fuel/oil mixture.

Consult with an authorized servicing dealer.

Engine is knocking.

Overheating condition

Improper fuel

Carbon deposits in the combustion chamber.

See above.

Check fuel octane rating; check for presence of alcohol in the fuel. Refuel as necessary.

Consult with an authorized servicing dealer.

19

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Shindaiwa 62891-94311 manual Troubleshooting Guide, What To Check
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62891-94311 specifications

The Shindaiwa 62891-94311 is a premium combination of engineering and technology, designed for lawn care and landscaping professionals. This tool provides efficient and reliable performance, making it a top choice for outdoor enthusiasts and contractors alike. One of the standout features of the Shindaiwa 62891-94311 is its lightweight yet durable construction. This ensures that it delivers high performance without sacrificing user comfort, allowing operators to work for extended periods without undue fatigue.

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