Carburetor 7·18 - Suzuki DR·Z400SM Owner's Manual

. ­
8.
Reinstall the oil filter cover and
tighten the nuts securely.
9 Reinstall the drain plug and
tighten it securely. Pour about
1800 ml (1.9 US qt) of the
specified oil in the filler hole.
(See FUEL AND OIL RECOM­
MENDATION section.)
CAUTION
Engine damage may occur if
~-~ I
you use oil that does not
me~;
I
Suzuki's specifications.
I
Use the oil specified in the
FUEL AND OIL RECOMMEN·
DATION section.
10. Start the engine (while the
motorcycle is outside on level
ground) and allow it to idle for
a few minutes.
11.Turn the engine off and wait
approximately one minute.
Recheck the oil level according
to oil level check procedure.
Inspect the area around the
drain plug and oil filter cover
for leaks.
CARBURETOR
The carburetor
IS
factory set 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
To adjust the engine idle speed
properly, you need a tachometer.
If you do not have one, ask your
Suzuki dealer or a qualified
mechanic to perform this adjust­
ment.
To adjust the idle speed:
r-
r"'­
.
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- ([E~~r/
L-;;
0
o
,
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CD
1. Start the engine and warm it
up by running 2000 r/min for
10 minutes in summer (where
ambient temperature is 30°C
(86°F) or thereabout) or for 20
minutes in winter (where ambi ­
ent temperature is down to ­
SoC (23°F) or thereabout).
2. Turn the throttle stop screw 1
in or out so that the engine
idles at 1400 - 1600 r/min.
Throttle Cable Adjustment
Measure the throttle cable play by
turning the throttle grip. The throt ­
tle grip should have 2.0 - 40 rnm
(0.08 - 0.16 in) play.
Inadequate throttle cable play
can cause engine speed to rise
I
suddenly when you turn the
handlebars. This can lead to
loss of rider control.
2.0 - 4.0
!lllll Adjust the throttle cable play
(008 - (116
III)
so that engine idle speed does
not .rise due to handlebar
I
movement.
I
- - - - - ~
To adjust the throttle cable play
4)!!!!!'t.
J
1. Loosen the lock nut
1
2 Turn the adjuster 2 in or out to
obtain the correct play
3. Tighten the lock nut'
1 .
4. Recheck the throttle cable
play. Readjust it if it is not
within the correct limits.
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