Shindaiwa 326T, 82085 Carbuerator Adjustment, Before Making Adjustments, LOW Altitude Adjustment

Maintenance, continued

CARBUERATOR ADJUSTMENT

Engine Break-In

New engines must be operated a minimum duration of two tanks of fuel break-in before carburetor adjustments can be made. During the break-in period your engine performance will increase and exhaust emissions will stabilize. Idle speed can be adjusted as required.

BEFORE MAKING ADJUSTMENTS:

1.The correct spark plug must be clean and properly gapped.

2.The air filter element must be clean and properly installed.

3.The muffler spark arrestor screen and exhaust port must be clear of carbon.

4.The standard bar and chain combination (refer to the section, Technical Data) must be installed to the power head, and properly tensioned.

English

C

A

B

low high

LOW ALTITUDE ADJUSTMENT

Engines that have been adjusted to operate at high altitudes must be readjusted to operate properly at altitudes below 1100 feet.

1.Start engine and run for several minutes to reach operating temperature.

2.Stop engine.

3.Start engine and turn the high-speed needle (A) rich (CCW) until the engine runs between 13,500 and 14,500 RPM. Then turn the low-speed needle (B) rich (CCW) until the engine does not hesi- tate when accelerated.

DO NOT REMOVE LIMITER CAPS!

4.Idle Speed Adjustment.

Turn “idle” speed adjustment screw (C) CW until the saw chain begins to move, then turn the screw CCW until saw chain stops moving. Turn screw CCW an additional 1/4 turn.

5.Accelerate to full throttle for 2-3 seconds to clear excess fuel from engine then return to idle. Accelerate to full throttle to check for smooth transition from idle to full throttle. If engine stops or stalls after full warm-up return the unit to your authorized Shindaiwa dealer for adjustment.

HIGH ALTITUDE ADJUSTMENT

High altitude adjustment may be required for proper operation of this engine above 1100 feet.

1.Start engine and run for several minutes to reach operating temperature.

2.Stop engine.

3.Start engine and turn the high speed needle (A) lean (CW) until the engine runs between 13,500 and 14,500 RPM. Then turn the low speed needle lean (B) (CW) until the engine does not hesi- tate when accelerated.

DO NOT REMOVE LIMITER CAPS!

4.Idle Speed Adjustment.

Turn “idle” speed adjustment screw (C) CW until the saw chain begins to move, then turn the screw CCW until saw chain stops moving. Turn screw CCW an additional 1/4 turn.

5.Accelerate to full throttle for 2-3 seconds to clear excess fuel from engine then return to idle. Accelerate to full throttle to check for smooth transition from idle to full throttle. If engine stops or stalls after full warm-up return the unit to your authorized Shindaiwa dealer for adjustment.

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