CB160, 1960s. CB450-K0 Black Bomber, 1960s. Motorcycle U-Spanner Tool for Front Fork Cushion Oil Seal Housing Case on the. This tool will safely unscrew (and refit) the front fork oil-seal case/housing without damaging the 4 pin holes but we suggest soaking the fork area in WD40 (or similar) over night and using heat to help remove these often stubborn oil-seal case holders.
