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PERIODIC MAINTENANCE AND ADJUSTMENT
7-10
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3. Insert the tailpipe into the muffler,
and then install and tighten the
screw.
TIP
Make sure to align the screw hole when
inserting the tailpipe.
EAU39930
Adjusting the carburetor
The carburetor is an important part of
the engine and requires very sophisti-
cated adjustment. Therefore, most car-
buretor adjustments should be left to a
Yamaha dealer, who has the neces-
sary professional knowledge and expe-
rience. The adjustment described in the
following section, however, may be ser-
viced by the owner as part of routine
maintenance.
NOTICE
ECA10550
The carburetor has been set and ex-
tensively tested at the Yamaha fac-
tory. Changing these settings
without sufficient technical knowl-
edge may result in poor perfor-
mance of or damage to the engine.
EAU21362
Adjusting the engine idling
speed
The engine idling speed must be
checked and, if necessary, adjusted as
follows at the intervals specified in the
periodic maintenance and lubrication
chart.
TIP
A diagnostic tachometer is needed to
make this adjustment.
1. Attach the tachometer to the spark
plug lead.
2. Start the engine and warm it up
for several minutes at 1000–2000
r/min while occasionally revving it
to 4000–5000 r/min.
TIP
The engine is warm when it quickly re-
sponds to the throttle.
3. Check the engine idling speed
and, if necessary, adjust it to spec-
ification by turning the throttle stop
screw. To increase the engine
idling speed, turn the screw in di-
rection (a). To decrease the en-
1. Spark arrester
1
Содержание PW50(Z)
Страница 3: ...5PG 28199 89 E0 PW50 Z OWNER S MANUAL Read this manual carefully before operating this vehicle ...
Страница 12: ...F IMPORTANT LABELS 1 3 3 2 1 ...
Страница 15: ...LOCATION OF IMPORTANT LABELS 1 6 1 2 3 4 5 6 7 8 9 h Africa 1 2 ...
Страница 21: ...3 1 2 3 4 5 6 7 8 9 DESCRIPTION EAU10410 1 2 3 4 5 e 7 10 7 8 ...
Страница 22: ...N 3 2 EAU10420 3 1 2 4 page 7 7 page 4 5 ...
Страница 23: ...DESCRIPTION 3 3 2 3 4 5 6 7 8 9 EAU10430 uments 1 2 7 3 4 5 6 4 3 ge 4 6 cap page 4 5 4 1 4 2 ...
Страница 59: ...PERIODIC MAINTENANCE AND ADJUSTMENT 7 23 2 3 4 5 6 7 8 9 Gasoline or ignite or ex ere injury or ...
Страница 70: ...ED PAPER YAMAHA MOTOR CO LTD PRINTED IN JAPAN 2009 04 0 5 1 E ...