7-10
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 where the
engine runs most smoothly.
5. When the idling mixture has
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.
NOTE: In the event that carbure-
tor adjustment is required due to
different altitude or climate condi-
tions, take your motorcycle to
authorized SUZUKI dealer.
Mechanical malfunctions resulting
from the owner tampering with
carburetion adjustment will not be
covered by the warranty.
JR50_03A.book Page 10 Tuesday, April 12, 2005 5:06 PM
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