Honda CRF250X 2007, Owner'S Manual & Competition Handbook

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Carburetor Adjustment & Tuning Tips
(25) float level
(26) float level gauge
(27) carburetor intake
10.Remove the leak jet (28) from the float bowl
(17).
Clean the leak jet.
9. Measure the float level (25) with the float
level gauge (26) while the float tab is just
contacting the float valve with the carburetor
intake (27) facing up. The float level should
be 0.31 in (8.0 mm).
If the float level is out of specification, adjust
it by bending the float tab carefully.
(17) float bowl (28) leak jet
(25)
(26)
(27)
(17)
(28)
Adjustments for Competition
133
(1) throttle cables
(2) hot start cable
(3) throttle position sensor connector
(2)
(3)
(1)
Carburetor Assembly
To assemble, reverse the disassembly procedures.
To install the carburetor, reverse the removal
procedures.
Tighten the following parts to the specified
torque.
float bowl screws:
1.5 lbf·ft (2.1 N·m, 0.2 kgf·m)
accelerator pump cover screws:
1.5 lbf·ft (2.1 N·m, 0.2 kgf·m)
carburetor top cover bolts:
1.5 lbf·ft (2.1 N·m, 0.2 kgf·m)
jet needle/holder assembly:
1.5 lbf·ft (2.1 N·m, 0.2 kgf·m)
leak jet:
0.2 lbf·ft (0.3 N·m, 0.03 kgf·m)
rink arm set torx screw:
1.5 lbf·ft (2.1 N·m, 0.2 kgf·m)
throttle drum cover bolt:
2.5 lbf·ft (3.4 N·m, 0.3 kgf·m)
hot start cable nut:
1.5 lbf·ft (2.1 N·m, 0.2 kgf·m)
throttle cable lock nut:
3.0 lbf·ft (4 N·m, 0.4 kgf·m)
throttle cable bolt:
3.0 lbf·ft (4 N·m, 0.4 kgf·m)
shock absorber upper mounting nut:
32 lbf·ft (44 N·m, 4.5 kgf·m)
• Route the throttle cables (1), hot start cable
(2) and throttle sensor wire correctly.
• After installing the carburetor, adjust the
throttle cable freeplay and hot start cable
freeplay.
• After installing the carburetor, check the
throttle position sensor connector (3) for
correct routing.
• After installing the carburetor, check the air
vent hoses (4) and overflow hose (5) for
kinking or pinching and correct routing.
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