FUEL SYSTEM
CS-501SX, CS-501SXH
501sx
32
4-9 Inspecting crankcase pulse passage
1. Drop a little oil in the end of pulse line (A) as
shown.
2. Remove spark plug and pull starter grip several
times. Oil should spit back from the hole.
3. If not, inspect whether pulse passage is clogged.
Repair or replace as required.
4-10 Inspecting metering lever height
1. Remove carburetor.
2. Remove four screws (A), metering diaphragm
cover (B), metering diaphragm (C) and gasket (D).
3. Inspect metering lever (E) height by Metering
lever gauge 897563-19830 (F).
Metering lever height: 1.65 mm (0.065 in) lower
than diaphragm seat (G).
4. If necessary, gently bend metering lever (E) up
or down to set metering lever to proper position.
NOTE:
When metering lever is:
Too high
→
Fuel
fl
ooding occurs
Too low
→
Fuel starvation / overheating occurs
A
A
C
D
B
1.65mm
diaphragm seat (G)
1.65
0.4
1.35
1.5
1.65
0.4
1.35
1.5
G
F
A
