Valve Body

Secondary Valve Body Disassembly, Inspection and Reassembly

 14-187  

  1. Clean all parts thoroughly in solvent or carburettor cleaner and dry them with compressed air. Blow out all passages.
  2. Do not move the lock bolt of the CPC valve adjusting screw.
  3. Check all valves for free movement. If any fail to slide freely, refer to Valve Body Repair (see page 14-181).
  4. Replace the valve body as an assembly if any parts are worn or damaged.
  5. Coat all parts with ATF during assembly.
    1. VALVE CAP CLIP
    2. VALVE CAP
    3. VALVE CAP
    4. 2-3 SHIFT VALVE
    5. SECONDARY VALVE BODY

      Inspect for scoring and damage.

    6. 4TH EXHAUST VALVE
    7. SPRING SEAT
    8. VALVE CAP
    9. ROLLER
    10. VALVE SLEEVE
    11. 3-4 ORIFICE CONTROL VALVE
    12. LOCK BOLT

      Do not move

    13. 3-4 SHIFT VALVE

SPRING SPECIFICATIONS

No. Spring Standard (New)-Unit: mm (in.)
    Wire Dia. O.D. Free Length No. of Coils
(1) 3-4 shift valve spring 0.9 (0.035) 7.6 (0.299) 57.0 (2.244) 26.8
(2) 2-3 shift valve spring 0.9 (0.035) 7.6 (0.299) 57.0 (2.244) 26.8
(3) 4th exhaust valve spring 0.9 (0.035) 6.1 (0.240) 36.4 (1.433) 19.5
(4) 3-4 orifice control valve spring 0.7 (0.028) 6.6 (0.260) 37.5 (1.476) 24.6