SECTION 5: MAKING ADJUSTMENTS

WARNING: To prevent serious injury, never do adjustments, maintenance or repairs with unit running. Always do maintenance and repairs on a cool unit. Disconnect spark plug wire to ensure the unit will not start.

Wheel Adjustments

To adjust the wheel height, refer to OPERATING YOUR CULTIVATOR in Section 4.

Carburetor Adjustments

WARNING: If any adjustments are made to the engine while the engine is running (e.g. carburetor), keep clear of all moving parts. Be careful of heated surfaces and muffler.

The idle speed adjuster of the engine is adjustable through the air filter/muffler cover. See Figure 22.

NOTE: Careless adjustments can seriously damage your unit. An authorized service dealer should make carburetor adjustments.

Check Fuel Mixture

Old and/or improperly mixed fuel is usually the reason for the unit not running properly. Drain and refill the tank with fresh, properly mixed fuel prior to making any adjustments. Refer to OPERATING YOUR CULTIVATOR in Section 4.

Clean Air Filter

The condition of the air filter is important to the operation of the unit. A dirty air filter will restrict air flow and change the air/fuel mixture. This is often mistaken for an out of adjustment carburetor. Check the condition of the air filter before adjusting the idle speed adjuster. Refer to MAINTAINING YOUR CULTIVATOR in Section 6.

Adjusting Idle Speed

WARNING: This unit will need to be running during idle speed adjustment. Wear protective clothing and observe all safety instructions to prevent serious personal injury.

If after checking the fuel mixture and cleaning the air filter the engine still will not idle, adjust the idle speed screw as follows.

1.Start the engine and let it run about 2-3 minutes at a high idle to warm up. Refer to OPERATING YOUR CULTIVATOR in Section 4.

NOTE: Ensure the tines are not in contact with the ground when adjusting the idle.

2.Release the throttle control and let the engine idle. If the engine stops, insert a small phillips or flat blade screwdriver into the hole in the air fil- ter/muffler cover. Turn the idle speed screw in, clockwise, 1/8 of a turn at a time (as needed) until the engine idles smoothly. See Figure 22.

NOTE: The tines should not rotate when the engine idles.

3.If the tines rotate when the engine idles, turn the idle speed screw counterclockwise 1/8 of a turn at a time (as needed), to reduce idle speed.

Checking the fuel mixture, cleaning the air filter, and adjusting the idle speed screw should solve most engine problems.

If not and:

•The engine will not idle,

•The engine hesitates or stalls on acceleration,

•There is a loss of engine power,

have the carburetor adjusted by an authorized service dealer.

Idle Speed Screw

 

Figure 22

Engine Specifications

Engine Type

… … … … … … …Air-Cooled, 2-Cycle

Displacement

… … … … … … … … … … … 31cc

Idle Speed R.P.M. … … … … … … 2,800-3,600 rpm Operating R.P.M. … … … … … … 6,700-9,000 rpm Fuel/Oil Mixture Ratio. … … … … … … … … … 32:1

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