Fork Fluid:
Honda Ultra Cushion Oil Special (SAE 5W)
Fork Oil Level:
140 (5.5)/423 cm3 with fork set collar (t=11 mm/0.4 in)
Now I am sure that is extremely helpful
So his is some more details from the manual:
You must use the fork set collar for correct oil level adjustment
Measure the oil level from the top of the outer tube.
Standard Oil Level:
140 mm (5.5 in) with fork set collar (t=11/0.4 in)
Standard Oil Capacity:
423 cm3 (14.3 US oz, 14.9 Imp oz)
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Charles Gallant