Remove the top cap.
Hold the outer tube vertically in a vise.
Push the top plug [A] down to remove the plug retaining ring [B], and then remove the plug.
Remove: Fork Spring [A].
Pour out the fork oil [A] with the fork upside down.
Hold the outer tube vertically in a vise.
Fill the front fork with the specified oil.
Fork oil:
- Type: SHOWA SS-8 or equivalent
- Capacity:
- When changing oil: approx. 355 mL (12.0 US oz.)
- After disassembly: 417±2.5 mL (14.1±0.084 US and completely dry: oz.)
Wait for about five minutes so that any suspended air bubbles can surface.
Measure the oil level, using the fork oil level gauge [A].
- Special Tool - Fork Oil level Gauge: 57001-1290
Set the gauge stopper [B] so that its lower side shows the oil level distance specified [C].
Insert the gauge tube into the inner tube [D] and position the stopper across the top of the inner tube [E].
Pull the handle slowly to draw out the excess oil until no more oil comes up the tube.
★ If no oil is drawn out from the beginning, there is not enough oil in the fork. Pour in some more oil, then draw out the excess.
Front fork oil level (fully compressed without fork spring):
- Standard: 160±2 mm (6.30±0.08 in.)
Install the fork spring with the smaller end [A] facing downward [B].
Upward [C]
Replace the O-ring on the top plug with a new one, and install it to the top plug.
Push down the top plug to install the ring, and then fit the ring into the groove of the inner tube.
Install the front fork (see Front fork installation).