Troubleshooting Guide

ENGINE DOES NOT START

What To Check

Does the engine crank?

YES

NO

Possible Cause

Faulty recoil starter. Fluid in the crankcase. Internal damage.

Remedy

Consult with an authorized servicing dealer.

Good compression?

YES

Does the tank contain fresh fuel of the proper grade?

YES

Is fuel visible and mov- ing in the return line when priming?

YES

Is there spark at the spark plug wire terminal?

YES

Check the spark plug.

NO

NO

NO

NO

Loose spark plug.

Excess wear on cylinder, piston, rings.

Fuel incorrect, stale, or contaminated; mixture incorrect.

Check for clogged fuel filter and/or vent.

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

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.

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.

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. Check the Specifications page for the correct spark plug. Restart.

LOW POWER OUTPUT

 

 

What To Check

 

 

 

Possible Cause

 

Remedy

 

 

 

 

 

 

Operator is overworking the unit.

 

Cut at a slower rate.

 

 

 

 

 

 

 

 

 

 

 

 

 

Carburetor mixture is too lean.

 

Consult with an authorized servicing dealer.

 

 

 

 

 

 

 

 

 

Is the engine overheating?

 

 

 

Improper fuel ratio.

 

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.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fan, fan cover, cylinder fins dirty or

 

Clean, repair or replace as necessary.

 

 

 

 

 

 

 

 

 

 

 

 

 

damaged.

 

Consult with an authorized servicing dealer.

 

 

 

 

 

 

Carbon deposits on the piston or in the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

muffler.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Clogged air cleaner element.

 

Clean or replace the air filter.

 

 

 

 

 

 

 

 

 

Engine is rough at all speeds.

 

 

 

Loose or damaged spark plug.

 

 

Tighten or replace the plug. Check the

 

 

 

 

 

 

 

 

 

May also have black smoke

 

 

 

 

 

 

Specifications page for the correct spark

 

 

 

 

 

 

 

 

plug. Restart.

 

 

and/or unburned fuel at the

 

 

 

 

 

 

 

 

 

 

 

Air leakage or clogged fuel line.

 

Repair or replace fuel filter and/or fuel line.

 

 

exhaust.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Water in the fuel.

 

Refill with fresh fuel/oil mixture.

 

 

 

 

 

 

 

 

 

 

 

 

 

Piston seizure.

 

Consult with an authorized servicing dealer.

 

 

 

 

 

 

 

 

 

 

 

 

 

Faulty carburetor and/or diaphragm.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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.

18

Page 18
Image 18
Shindaiwa 69033-94310, 502s manual Troubleshooting Guide, What To Check Possible Cause Remedy

69033-94310, 502s specifications

The Shindaiwa 502S is a powerful and versatile handheld blower known for its performance and efficiency in the landscaping and lawn care industries. Engineered for both professionals and homeowners, this model delivers a range of features that make it an exceptional tool for clearing debris, leaves, and grass clippings with ease.

At the heart of the Shindaiwa 502S is its robust engine, a 50.2cc two-stroke engine that provides reliable power while ensuring optimal performance. This engine is designed with advanced technology, offering high air volume and velocity, which allows users to tackle even the toughest blowing tasks effectively. The engine is also equipped with a fuel-efficient design that minimizes emissions, aligning with today’s environmental standards.

One of the key features of the 502S is its lightweight construction. Weighing in at just over 10 pounds, this blower is designed for user comfort, allowing extended periods of operation without excessive fatigue. Its ergonomic design includes a padded harness and adjustable handle, which provides a more balanced and comfortable grip. This design is particularly beneficial for professional landscapers who require a tool that promotes productivity without sacrificing comfort.

The Shindaiwa 502S also features a highly responsive throttle trigger, which allows for precise control over the airflow. This enhances user control when navigating around delicate plants or in enclosed spaces. Additionally, the blower is designed with a heavy-duty air filter, promoting cleaner airflow to the engine and ultimately extending the life of the tool.

Another significant characteristic of the 502S is its easy starting system. Shindaiwa has incorporated a reliable starting mechanism that reduces the number of pulls needed to start the engine, saving time and effort during work sessions. Coupled with a low vibration design, this blower not only eases operation but also promotes safer, more comfortable usage.

In conclusion, the Shindaiwa 502S is a standout model in the landscape maintenance arena. With its powerful yet efficient engine, user-friendly design, and advanced features, this blower is well-suited for both residential and commercial applications. Whether it's tackling leaves in the fall or clearing debris after a storm, the Shindaiwa 502S consistently delivers high performance and durability, top choices for those serious about lawn care and landscaping endeavors.