2012 Yamaha Motorsports Venture Lite Owners Manual - Page 60

2012 Yamaha Motorsports Venture Lite Manual

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Periodic maintenance and adjustment 2 1 1 1. Spark plug gap 2. Spark plug reach 1. Rubber cap 5. Before installing any spark plug, measure the spark plug gap with a wire thickness gauge and adjust to specification. Spark plug gap: 0.6-0.7 mm (0.024-0.028 in) When installing the spark plug, always clean the gasket surface. Wipe off any grime from the threads and tighten the spark plug to the specified torque. Spark plug tightening torque: 13 Nm (1.3 m·kgf, 9.4 ft·lbf) ECS00382 Insert a Phillips screwdriver into the hole, and then turn the idle adjusting screw in or out to adjust the engine idling speed. 1. Idle adjusting screw NOTICE Make sure that the spark plug caps are securely installed. Otherwise the spark plug caps could be damaged due to engine vibration. ESU11812 Standard engine idling speed: 1700-1900 r/min 6. Install the rubber cap. ESU13663 Adjusting the engine idling speed 1. 2. 3. 4. Place the snowmobile on a level surface and apply the parking brake. Start the engine and warm it up. Select the engine speed meter mode. (See page 12 for details.) Remove the rubber cap. Adjusting the throttle lever free play (PZ50RT / PZ50GT / PZ50MT) 1. 2. 3. Slide the rubber cover back. Loosen the locknut. To increase the throttle lever free play, turn the adjusting nut in direction (a). To decrease the throttle lever free play, turn the adjusting nut in direction (b). 54

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Periodic maintenance and adjustment
54
Before installing any spark plug, measure the
spark plug gap with a wire thickness gauge
and adjust to specification.
When installing the spark plug, always clean
the gasket surface. Wipe off any grime from
the threads and tighten the spark plug to the
specified torque.
NOTICE
ECS00382
Make sure that the spark plug caps are se-
curely installed. Otherwise the spark plug
caps could be damaged due to engine vi-
bration.
ESU11812
Adjusting the engine idling
speed
1.
Place the snowmobile on a level surface
and apply the parking brake.
2.
Start the engine and warm it up.
3.
Select the engine speed meter mode.
(See page 12 for details.)
4.
Remove the rubber cap.
5.
Insert a Phillips screwdriver into the hole,
and then turn the idle adjusting screw in
or out to adjust the engine idling speed.
6.
Install the rubber cap.
ESU13663
Adjusting the throttle lever free
play (PZ50RT / PZ50GT /
PZ50MT)
1.
Slide the rubber cover back.
2.
Loosen the locknut.
3.
To increase the throttle lever free play,
turn the adjusting nut in direction (a). To
decrease the throttle lever free play, turn
the adjusting nut in direction (b).
1.
Spark plug gap
2.
Spark plug reach
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)
Spark plug tightening torque:
13 Nm (1.3 m·kgf, 9.4 ft·lbf)
1
1
2
1.
Rubber cap
1.
Idle adjusting screw
Standard engine idling speed:
1700–1900 r/min