Chapter 5. Carburetor; Carburetor - Yamaha TTR250L Service Manual

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CARBURETOR

1 Throttle arm assembly
2 Jet needle set
3 Throttle valve
4 Pump lever
5 Starter plunger assembly
6 Needle valve set
7 One-way valve
8 Diaphragm assembly (acceleration pump)
9 Check valve assembly
0 Float
A Baffle plate
B Needle jet
C Main jet
D Pilot jet
E Pilot screw
F Throttle stop screw
5
CARBURETOR
CARBURETOR
ID MARK
MAIN JET (M.J.)
PILOT JET (P.J.)
JET NEEDLE (J.N.)
NEEDLE JET (N.J.)
PILOT SCREW (P.S.)
FLOAT HEIGHT (F.H.)
Å
FUEL LEVEL
ENGINE IDLING SPEED
5 - 1
CARB
SPECIFICATIONS
5GF1 00
#137
#52
#5C9C-3/5
2.595 (V95)
1-1/2 turns out
26.5 ~ 27.5 mm
(1.04 ~ 1.08 in)
(F.L.)
7.5 ~ 9.5 mm
(0.30 ~ 0.37 in)
Below the float chamber
mating surface
1,250 ~ 1,350 r/min

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