Upper Control Valve Body

Disassembly/Inspection/Assembly

CAUTION:
- Each valve should slide out/in under its own weight.
- When a valve will not slide out under its own weight, depending on the valve, push it out with a wire or place the valve body open-side down and lightly tap it with a plastic hammer. Never scratch or otherwise damage a valve surface or bore.
- Do not drop or lose the valves or internal parts.
- Before assembly, make sure all parts are thoroughly clean.
- Apply ATF to all parts and bores.
- Do not reuse any part that has been dropped.
- Wrap a screwdriver or rod with tape before using it to insert a valve.

1. Disassemble in the order shown in the figure.
2. Inspect all parts and repair or replace as necessary.
3. Assemble in the reverse order of disassembly, referring to Assembly Procedure.

Inspection

NOTE: Do not compress the spring when measuring it with vernier calipers.







1. Measure the spring free length.
2. If not within specification, replace the spring(s).

Assembly procedure




1. Insert the throttle modulator spring, throttle modulator valve, and stop plug. Secure them with the stop pin.




2. Insert the throttle adjust plug, throttle assist spring, throttle valve, throttle spring, and throttle plug assembly.