Carburetor - Suzuki JR50 Owner's Manual

CARBURETOR

The carburetor is factoryset for
the best performance. Do not
attempt to alter its setting. There
are two items of adjustment, how-
ever, under your care: idle speed
and throttle cable play.
Idle Speed Adjustment
The engine idle speed may be
adjusted by turning the throttle
valve adjusting screw 1 and the
pilot air adjusting screw 2 in the
following procedures.
1. Start the engine and allow it to
warm up.
2. After the engine warms up,
stop it momentarily. Turn the
pilot air adjusting screw 2 all
the way in and then back it out
1-1/4 turns.
3. Start the engine again and
adjust the throttle valve adjust-
ing screw 1 so that the engine
runs at the lowest steady
speed.
4. Turn the pilot air adjusting
screw 2 in or out within 1/4
turn from the standard setting
(1-1/4 turns) to find the opti-
mum position
engine runs most smoothly.
5. When the idling mixture has
NOTE: In the event that carbure-
tor adjustment is required due to
different altitude or climate condi-
tions, take your motorcycle to
authorized
Mechanical malfunctions resulting
from the owner tampering with
carburetion adjustment will not be
covered by the warranty.
where the
7-10
been adjusted by turning the
air adjusting screw 2, the
proper engine idle speed may
be obtained by adjusting the
throttle valve adjusting screw
1.
SUZUKI dealer.