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7-3
TUN
SETTING
EC714060
Effect of setting parts in relation to throttle
valve opening
1 Throttle valve opening
2 Full-open
3 Full-closed
EC715002
Main jet adjustment
The richness of air-fuel mixture with 1/2~4/4
throttle can be set by changing the main jet 1.
1. Spark plug is too hot.
Select a main jet having higher calibrating
No. than standard. (To be enriched)
2. Spark plug is wet.
Select a main jet having lower calibrating No.
than standard. (To be leaned out)
Setting part
Throttle valve opening
Full-closed 1/4 1/2 3/4 Full-open
Pilot air screw
Pilot jet
Diameter of
straight portion
Clip position
Throttle valve
Main jet
Jet needle
Standard main jet
#460
*#450
*For EUROPE
5MV-9-10-7 6/12/00 9:02 PM Page 4