FI SYSTEM 4-73
• Start up the engine and run it in idling condition for warming
up.
• Stop the warmed-up engine.
• Connect a tachometer and start up the engine.
• Bring the engine rpm to 1 200 rpm by the throttle stop screw.
• Check the vacuum of the two cylinders and balance the two
throttle valves with the synchronizing screw. (#4-66)
NOTE:
* During balancing the throttle valves, always set the engine
rpm at 1 200 rpm, using throttle stop screw.
* After balancing the two valves, set the idle rpm to 1 200 rpm.
"
For vacuum balancer gauge (09913-13121)
The vacuum gauge is positioned approx. 30° from the horizontal
level, and in this position the two balls should be within one ball
dia. If the difference is larger than one ball, turn the synchroniz-
ing screw on the throttle body and bring the ball to the same
level.
A correctly adjusted throttle valve synchronization has the balls
in the No.1 and No.2 at the same level.
NOTE:
Make sure that the throttle lever should have a gap
A (between
the throttle lever and throttle lever stopper screw) during syn-
chronization.
% Throttle lever gap
A: 0.31 mm (0.012 in)
THROTTLE CABLE ADJUSTMENT
NOTE:
Minor adjustment can be made by the throttle grip side adjuster.
(#2-14)
Avoid drawing dirt into the throttle body while running
the engine without air cleaner box. Dirt drawn into the
engine will damage the internal engine parts.
To Next Page
Loading...
Need help?
General
