Service Manual

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Table of Contents
Twin Cylinder Engine Service Manual
February 2017 - Digital Edition
GENERAL SERVICE INFORMATION
This symbol means WARNING or PERSONAL SAFETY INSTRUCTION – read the instruction
because it has to do with your safety. Failure to comply with the instruction may result in personal
injury or even death.
This manual is intended as a service and repair manual only. The safety instructions provided
herein are for troubleshooting, service, and repair of the Toro Twin Cylinder Engine.
The Toro product operator’s manual contains safety information and operating tips for safe operating practices.
Operator manuals are available online or through your Toro parts source:
The Toro Company
8111 Lyndale Avenue South
Bloomington, MN 55420
Think Safety First
Avoid unexpected starting of engine…
Always turn off the engine and disconnect the spark plug wire(s) before cleaning, adjusting, or repair.
Avoid lacerations and amputations…
Stay clear of all moving parts whenever the engine is running. Treat all normally moving parts as if they were
moving whenever the engine is running or has the potential to start.
Avoid burns…
Do not touch the engine, muffler, or other components, which may increase in temperature during operation, while
the unit is running or shortly after it has been running.
Avoid fires and explosions…
Avoid spilling fuel and never smoke while working with any type of fuel or lubricant. Wipe up any spilled fuel or oil
immediately. Never remove the fuel cap or add fuel when the engine is running. Always use approved, labeled
containers for storing or transporting fuel and lubricants.
Avoid asphyxiation…
Never operate an engine in a confined area without proper ventilation.
Avoid injury from batteries…
Battery acid is poisonous and can cause burns. Avoid contact with skin, eyes and clothing. Battery gases can
explode. Keep cigarettes, sparks and flames away from the battery.
Avoid injury due to inferior parts…
Use only original equipment parts to ensure that important safety criteria are met.
Avoid injury to bystanders…
Always clear the area of bystanders before starting or testing powered equipment.
Avoid injury due to projectiles…
Always clear the area of sticks, rocks or any other debris that could be picked up and thrown by the powered
equipment.
Avoid modifications…
Never alter or modify any part unless it is a factory approved procedure.
Avoid unsafe operation…
Always test the safety interlock system after making adjustments or repairs on the machine.