Adjusting The Engine Idling Speed

ENGINE

9. Measure:                                                 6. Adjust:
 • Engine idling speed                                       • Engine idling speed
   Out of specification → Adjust.                           ▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
   Make sure that the vacuum pressure is within             a. Turn the engine idle speed adjustment screw
   specification.                                              “1” in direction “a” or “b” until the specified en-
10.Stop the engine and remove the measuring                    gine idling speed is obtained.
   equipment.
11.Adjust:                                                       Direction “a”
                                                                  Engine idling speed is increased.
 • Throttle cable free play
                                                                 Direction “b”
   Refer to “ADJUSTING THE THROTTLE CA-                           Engine idling speed is decreased.
   BLE FREE PLAY” on page 3-10.

           Throttle cable free play
            3.0–5.0 mm (0.12–0.20 in)
                                                                                               a
12.Install:
 • Caps                                                                               b               1
13.Install:
 • T-bar
 • Rider seat
   Refer to “GENERAL CHASSIS” on page 4-1.
EAS20610                                                    ▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
ADJUSTING THE ENGINE IDLING SPEED                           7. Adjust:
NOTE:                                                        • Throttle cable free play
Prior to adjusting the engine idling speed, the                Refer to “ADJUSTING THE THROTTLE CA-
throttle body synchronization should be adjusted               BLE FREE PLAY” on page 3-10.
properly, the air filter element should be clean,
and the engine should have adequate compres-                            Throttle cable free play
sion.                                                                    3.0–5.0 mm (0.12–0.20 in)

1. Start the engine and let it warm up for several          8. Install:
   minutes.                                                  • T-bar
2. Remove:                                                   • Rider seat
 • Right side cowling                                        • Right side cowling
 • Rider seat                                                  Refer to “GENERAL CHASSIS” on page 4-1.
   Refer to “GENERAL CHASSIS” on page 4-1.
                                                            EAS20630
 • Fuel tank
                                                            ADJUSTING THE THROTTLE CABLE FREE
   Refer to “FUEL TANK” on page 7-1.
                                                            PLAY
 • T-bar
   Refer to “GENERAL CHASSIS” on page 4-1.              NOTE:
3. Install:                                                 Prior to adjusting the throttle cable free play, the
 • Digital tachometer                                       engine idling speed and throttle body synchroni-
   (onto the spark plug lead of cylinder #1)                zation should be adjusted properly.
4. Install:                                                 1. Check:
 • Fuel tank                                                 • Throttle cable free play “a”
   Refer to “FUEL TANK” on page 7-1.                           Out of specification → Adjust.
5. Check:
 • Engine idling speed
   Out of specification → Adjust.

           Engine idling speed
            1000–1100 r/min

                                                     3-10