Service manual

A) DISASSEMBLY AND ASSEMBLY PROCEDURE
1) Refer to the disassembly drawing when disassembling or assembling.
2) Be careful not to damage gaskets and the like when assembling
3) Do not attempt to disassemble the throttle valve ass’y or pump body ass’y.
4) When you find during disassembly of the carburetor that the inlet screen is clogged or there is con-
siderable dirt buildup in the carburetor itself, be sure to clean out the fuel tank and replace the fuel tank
filter.
B) INSPECTION PROCEDURE
1) Clean off the tool body and dry off with an air nozzle.
2) Check for dirt adhering to the main jet or corrosion. Blow off any dirt with an air nozzle.
3) Be sure gaskets and the like are not damaged or deformed. Replace as necessary.
4) Check for damage or hardening of the pump diaphragm. Be sure inlet and outlet valves are horizontal and
5) Check for possible damage or hardening of the metering diaphragm. The plate should not be sent.
6) Check for bending or damage to the pump plate.
7) After cleaning the pump body ass’y, check spring deformation, lever height, inlet screen (for dirt clogging
it), valve operation, etc. When inspecting check valve operation, look for blockage due to dirt at the check
valve portion or vinyl pipe by blowing through the port.
If blocked, replace.
CAUTION: Never blow air into the check valve under high pressure.
8) Check for possible deformation of the air purge body, combination valve, etc.
9) Lock for holes, damage or hardening of the primer pump.
not bent.
22