Yamaha XT250X Service Manual page 27

Air filter
Air filter element
Carburetor
Type × quantity
Manufacturer
ID mark
Main jet
Main air jet
Jet needle
Needle jet
Pilot air jet 1
Pilot outlet
Pilot jet
Bypass 1
Bypass 2
Bypass 3
Bypass 4
Pilot screw turn out
Valve seat size
Starter jet 1
Starter jet 2
Throttle valve size
Float height
Idling condition
Engine idling speed
CO%
Intake vacuum
Oil temperature
Throttle cable free play
ENGINE SPECIFICATIONS
Oil-coated paper element
MV33 x 1
TEIKEI
3C58 00 (U49)
3C59 00 (CAL)
#135
1.20
5A21-1
2.585
0.90
0.8x1.2
#34
0.8
0.8
0.8
0.8
2–1/2
0.50
#90
#78
33
11.9 mm (0.47 in)
1300–1500 r/min
0.5–1.5 %
29.0–37.0 kPa (8.6–10.9 inHg) (218–278 mm-
Hg)
95.0–105.0 °C (203.00–221.00 °F)
3.0–5.0 mm (0.12–0.20 in)
2-8