Specifications:
The manual covers Hypro Model Numbers 2549-0039, 2549-0040, and 2549-0041, which are 5.5 HP and 6.5 HP gasoline engines with low oil sensors. These engines are 4-stroke, overhead valve, single-cylinder types. The 5.5 HP engine has a displacement of 9.9 cu. in. and the 6.5 HP engine has a displacement of 12 cu. in. Both engines have an idle speed of 1400 rpm and a maximum output at 3600 rpm.

Important Safety Information:
Safety precautions are emphasized, including checking the engine's general condition, ensuring proper equipment operation, and adhering to safe operating procedures.

Operation:
Detailed instructions are provided for starting, setting the engine speed, and stopping the engine. It includes steps for ensuring the engine is ready for operation and safe handling practices.

Servicing the Engine:
Maintenance safety and precautions are outlined, along with a maintenance schedule. Key servicing tasks include refueling, oil recommendations, oil level checks, oil changes, air filter inspection, sediment cup cleaning, spark plug service, and idle speed adjustment.

Storing the Engine:
Guidelines for cleaning, fuel management, adding fuel stabilizer, draining fuel, and engine oil management are provided. Storage precautions and removal from storage procedures are also included.

Troubleshooting:
A troubleshooting section is available to address common engine issues.

Remote Control Linkage (Optional):
Information on optional remote control linkage is provided.

High Altitude Operations:
Adjustments and considerations for high altitude operations are discussed.

Replacement Parts:
A list of replacement parts and their part numbers is included.

Warranty:
Hypro offers a one-year limited warranty covering defects in material and workmanship under normal use. The warranty excludes certain damages and requires specific return procedures for service or warranty consideration.