Clutch Inspection

Inspect the 4th and 5th clutch pistons and the clutch piston check valves (A).

Fig 1: Identifying Clutch Piston Check Valves
Courtesy of AMERICAN HONDA MOTOR CO., INC.
If the clutch piston check valve is loose or damaged, replace the clutch piston.
Check the spring retainer for wear and damage.
Check the oil seal (A) on the spring retainer of the 1st, 2nd, and 3rd clutches for wear, damage, and peeling.

Fig 2: Identifying Oil Seal
Courtesy of AMERICAN HONDA MOTOR CO., INC.
If the oil seal is worn, damaged, or peeling, replace the spring retainer.
Inspect the clutch discs, the clutch plates, and the clutch end-plate for wear, damage, and discoloration.
Standard Thickness

Clutch Discs: 1.94 mm (0.076 in.)

Clutch Plate:

1st Clutch: Wave-plate: 1.6 mm (0.063 in.)

Flat-plate: 1.6 mm (0.063 in.)

2nd Clutch: Wave-plate: 2.0 mm (0.079 in.)

Flat-plate: 2.0 mm (0.079 in.)

3rd Clutch: Wave-plate: 1.6 mm (0.063 in.)

Flat-plate: 1.6 mm (0.063 in.)

4th Clutch (Wave-plate): 2.0 mm (0.079 in.)

5th Clutch (Wave-plate): 2.0 mm (0.079 in.)
If the clutch discs are worn or damaged, replace them as a set. If the clutch discs are replaced, inspect the clutch clearance the inspection (see CLUTCH CLEARANCE INSPECTION ).
If any clutch plate is worn, damaged, or discolored, replace the damaged plate with a new plate, and inspect the other wave-plates for a phase difference (see CLUTCH WAVE-PLATE PHASE DIFFERENCE INSPECTION ). If the clutch plate is replaced, inspect the clutch clearance the top disc.
If the clutch end-plate is worn, damaged, or discolored, inspect the clutch clearance (see CLUTCH CLEARANCE INSPECTION ), then replace the clutch end-plate.