Jonway Ranger 250 Manual page 38

performance of the engine. The carburetor is
adjusted the best condition in the manufacture
and don't change the condition. Now you shall
adjust the two projects as followings:adjusting of
choke and idle speed.
(a)Adjusting of choke
1.Check whether the choke and throttle work well
the conditions of full opening and closing for
choke or not.
2.Check the free distance in the position of
drawing turn bar, and the free distance:2-6mm. if
adjust the distance, please loosen nut(1)and
adjustor(2).
(b)Adjust the idle speed
1.Warm the engine many minutes and start it.
2.Twist the adjusting nut of oil, and slowly drop it
1
about3 circle. Lock it the max place and adjust
8
lightly the limited screw until reach at the
requirement of idle speed.