16221-ZY1-000 Honda GASKET, CARBURETOR (Honda Code 7213994).

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Dispose of all fluids according to local regulations and mandates.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Do not drain the engine lubricating oil when the engine is cold. As the engine lubricating oil cools, suspended waste particles settle on the bottom of the oil pan. The waste particles are not removed with draining cold oil. Allow 30 minutes after the engine is stopped, before draining the oil pan. Drain the oil pan with the oil warm. This draining method allows the waste particles that are suspended in the oil to be drained properly.Failure to follow this recommended procedure will cause the waste particles to be recirculated through the engine lubrication system with the new oil.Oil and Filter Change Intervals
The standard engine oil and filter change period is 500 hours or 1 year. There are several other factors that can alter the standard engine oil and filter change of 500 hours or 1 year.
If the engine is using engine oil analysis to determine oil and filter change period.
The engine is working in a severe service environment/Load Factor
Infrequent operation of the engineRefer to this Operation and Maintenance Manual, "Severe Service Application" for more information on reducing the engine oil and filter change period. For severe service applications the recommended oil and filter change period is 250 hours.If the engine is operated in severe service conditions, Caterpillar recommends the use of engine oil sampling. Refer to this Operation and Maintenance Manual, Engine Oil sample - Obtain for more information.If the engine is operated infrequently less than 500 hours in a 12-month period, then the engine oil and filter change should be conducted yearly.Drain the Engine Lubricating Oil
Note: Ensure that the vessel that will be used is large enough to collect the waste oil.After the engine has been run at the normal operating temperature, stop the engine. Use the following method to drain the engine oil pan:
Illustration 1 g06304103
Typical example of a nonmetallic oil pan.
Place container below oil drain plug (1). Remove oil drain plug (1) and allow the oil to drain. Remove O ring seal (2) and discard.
Clean oil drain plug (1) and install new O ring seal (2). Install oil drain plug (1) into oil pan (3) (sump).Note: The torque given for the oil drain plug is for a nonmetallic oil pan.
Tighten oil drain plug (1) to a torque of 24 N m (212 lb in). Remove container below oil drain plug (1) and discard waste oil in accordance with local regulations.Note: A drain valve may be installed. Tighten the drain valve to a torque of 24 N m (212 lb in).Replace the Oil Filter Element
Illustration 2 g06304150
Typical example
Remove cap (1) from filter body (4).The filter element (3) will be attached to cap (1). Remove filter element (3) from cap (1). Discard old filter element.
Remove O ring seal (2) from cap (1). Discard O ring seal.
Ensure that cap and filter body are clean and free from dirt or damage. Inspect new filter element for damage before installing.
Install new O ring seal (2) onto cap (1). Install new filter element (3) into cap (1). Install new filter element (3) and cap (1) to filter body (4).
Tighten cap (1) to a torque of 24 N m (212 lb in)Fill the Oil Pan
Illustration 3 g06304141
Typical example
(1) Top mounted fill cap
(2) Side-mounted filler cap
Refer to this Operation and Maintenance Manual, "Fluid Recommendations" for more information on suitable oils.
Fill the oil pan with the correct amount of new engine lubricating oil. Refer to this Operation and Maintenance Manual, "Refill Capacities" for more information on refill capacities.Note: If the oil is filled through the oil filler cap, allow the oil to drain down to the oil pan for a minimum of 30 minutes before starting the engine.
After installing the oil filler cap, start the engine and run the engine at "LOW IDLE" for 2 minutes. Perform this procedure to ensure that the lubrication system has oil and that the oil filter is filled. Inspect the oil filter for oil leaks.
Stop the engine and allow the oil to drain back to the oil pan for a minimum of 30 minutes.
Remove the engine oil level gauge to check the oil level. Maintain the oil level between "L" and "H" marks on the engine oil level gauge. Do not fill the crankcase above the "H" mark.Note: For more information on accurate oil level check, refer to this Operation and Maintenance Manual, "Engine Oil Level - Check".