2003 Yamaha Motorsports VK 540 lll Owners Manual - Page 46

2003 Yamaha Motorsports VK 540 lll Manual

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chamber hot spots and thread damage. Always use a spark plug with the proper reach. Spark plug reach 1: 19.0 mm (0.75 in) 834-001 Before installing any spark plug, measure the electrode gap with a wire thickness gauge and adjust to specification. Spark plug gap 2: 0.7 ~ 0.8 mm (0.028 ~ 0.031 in) When installing the plug, always clean the gasket surface. Wipe off any grime from the threads and torque the spark plug properly. Spark plug torque: 20 Nm (2.0 m·kg, 14 ft·lb) ESU00146 ENGINE IDLE SPEED ADJUSTMENT CAUTION: • 804-018 • Be sure this adjustment is serviced by a Yamaha dealer. Be sure the throttle lever moves smoothly. 1. Start the engine. NOTE: Refer to STARTING THE ENGINE. 2. Turn the throttle stop screw 1 in or out to adjust the engine idle speed. Standard engine idle speed: 1200 ± 100 r/min 8-5

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8-5
chamber hot spots and thread damage. Always use a
spark plug with the proper reach.
Spark plug reach
1
:
19.0 mm (0.75 in)
Before installing any spark plug, measure the electrode
gap with a wire thickness gauge and adjust to specification.
Spark plug gap
2
:
0.7 ~ 0.8 mm (0.028 ~ 0.031 in)
When installing the plug, always clean the gasket surface.
Wipe off any grime from the threads and torque the spark
plug properly.
Spark plug torque:
20 Nm (2.0 m·kg, 14 ft·lb)
834-001
ESU00146
ENGINE IDLE SPEED ADJUSTMENT
CAUTION
:
•
Be sure this adjustment is serviced by a Yamaha
dealer.
•
Be sure the throttle lever moves smoothly.
1. Start the engine.
NOTE:
Refer to STARTING THE ENGINE.
2. Turn the throttle stop screw
1
in or out to adjust the
engine idle speed.
Standard engine idle speed:
1200
±
100 r/min
804-018