70766 Suzuki RM250–

70766 Suzuki RM250–



FUEL SYSTEM 9-9

Jet needle


Lean


Rich


Air/fuel

mixture

SIZE

P/NO.

NECL

13383-37FG0

NEDL

13383-37FP0

NECK

13383-37FF0

NEDK

13383-37FN0

NECJ

13383-37FE0

NEDJ

13383-37FM0

NECW

13383-37FD0

NEDW

13383-37FL0

* NECH

13383-37FC0

NEDH

13383-37FK0

NECG

13383-37FB0

NEDG

13383-37FJ0

NECF

13383-37FA0

NEDF

13383-37FH0

\


(2) Adjustment of main system With the throttle opened 3/4 to fuli, make main system adjustment monitoring the air/fuel mixture con-dition after completion of slow system settings.

* Make surÄ™ to adjust the main system before adjusting the intermediate system.


Ex. Main jet #172

If air/fuel mixture is rich, replace it with #170 main jet. If air/fuel mixture is lean, replace it with #175 main jet.


NOTĘ:

SHADED: STANDARD

*:    INCLUDED ALTERNATE PARTS \

NONĘ:    OPTIONAL PARTS


\

\ \


\    "    \ Vv


® Adjustment of intermediate system


Monitor the air/fuel mixture condition and adjust the •Intermediate system by changing the needle clip position.

@ FinaÅ‚ adjustment of slow system After a proper standard setting has been obtained by the procedurÄ™ ® through fine tune the carbu-retor according to the actual race conditions.

1) Adjust the air/fuel mixture by turning the air screw with i n 1/2 - 2 tum s out.


â–  W N

l

\


© Adjustment of slow system

1)    Setthe air screw as specified; V> \\.>

2)    See if the selected slow jet,js\correct'6r not by

.    >    . i

judging the air/fuel mixture) If air/fuel mixture is rich. replace it with smaiter^one. If air/fuel mix-ture is leanT replace it with largerone.


V\ V


\ *


Ex. Slow jet #50

If air/fuel mixture is rich, replace it with #48 slow jet. If air/fuel mixture is lean, replace it with #52 slow jet.


1/2turnout -

i,

3/4 turn out

1 turn out

1 and 1/4 turns out

1 and 1/2 turns out

1 and 3/4 turns out

2 turns out i

f


2) If the mixture can not be adjusted by the air screw within 1/2-2 turns out rangÄ™, readjust the slow system ©.

(D FinaÅ‚ adjustment of intermediate system Fine tune the intermediate system by changing the needle type and clip position.



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