Fuel / Exhaust
4.23
Carburetor Disassembly / Inspection -- Continued
3. Inspect the jet block and pop--off valve assembly for
obstructions.
4. Measure control arm height from machined
surface to top of plastic button on control arm.
Remove screw and remove control arm and inlet
needle.
NOTE: Top of plastic button #2 should be .060 ²(1.5
mm) below casting surface #1 as per illustration at
right. Variances in control arm positioning will result
in incorrect fuel supply. If the control arm is too close
to the diaphragm, fuel levels will increase, resulting in
a rich operating condition. If the control arm is too far
below the casting parallel line a lean condition will re-
sult.
5. Inspect inlet needle for wear , damage, or foreign
material.
2
1
.060²
1.5 mm
Good Condition
Worn, Deposits
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