Throttle Body Synchronization - Yamaha PZ50W Service Manual

THROTTLE BODY SYNCHRONIZATION

1
THROTTLE BODY SYNCHRONIZATION
NOTE:
Prior to synchronizing the throttle bodies, the valve
clearance and the engine idle speed should be
properly adjusted.
1. Remove:
• Headlight assembly (PZ50/PZ50GT/PZ50FX/
PZ50M)
• Air filter case assembly
Refer to "COWLINGS" in CHAPTER 3.
2. Remove:
• Vacuum cap 1
1
3. Install:
• Vacuum gauge 1
Vacuum gauge:
4. Install:
• Air filter case
Refer to "COWLINGS" in CHAPTER 3.
5. Start the engine and let it warm up for several
minutes.
6. Inspect:
• Engine idle speed
Out of specification
Refer to "ENGINE IDLE SPEED ADJUST-
MENT".
Engine idle speed:
7. Adjust:
• Throttle body synchronization
2-13
INSP
ADJ
90890-03094, YU-44456
→
Adjust.
1,700 ~ 1,900 r/min