Yamaha UMX - Page 86

ANNUAL CHECKS
3-13
• There are two separate throttle cables.
Each cable requires adjustment for free
play and full throttle operation.
1. Turn the main switch to the “OFF” position.
2. Remove the under-seat panel (YUM1A).
Refer to “GENERAL CHASSIS (1)” on page
4-1.
3. Lift up the cargo bed.
4. Remove:
• Service lid
Refer to “GENERAL CHASSIS (5)” on page
4-10.
• Air filter case
Refer to “AIR FILTER CASE” on page 6-4.
5. Attach:
• Throttle valve angle adjusting tool “1”
6. Turn the governor lever “1” counterclockwise
until it stops.
7. Measure:
• Clearance “a”
The clearance is between the throttle lever
“1” and throttle valve angle adjusting tool “2”.
Out of specification → Adjust.
a. Loosen the locknut “1”.
b. Turn the adjusting nut “2” in or out until the
clearance is obtained.
c. Tighten the locknut.
8. Fully depress the acceleration pedal “1”.
9. Measure:
• Clearance “a”
The clearance is between the throttle lever
“1” and throttle valve angle adjusting tool “2”.
Out of specification → Adjust.
Throttle valve angle adjusting
tool
90890-01597
Clearance
0.2–1.5 mm (0.02–0.06 in)
1
1
Clearance
0.2–1.5 mm (0.02–0.06 in)
a
2
1
2
1
1
a
2
1