I'd post the article's contents, but it's got a lot of special formatting and pics. If anyone has an older Japanese bike they want to do some winter work on, might want to read the article first.

Quick primer:

JIS (Japanese Industrial Standard) screws look like Phillips, but they're not. If you've ever wondered why your screws were a pain and tend toward stripping easily, they just might be JIS.

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"Phillips head screw (R) has rounded corners, supposedly designed so the screwdriver will "cam out" at maximum torque."

The author shows the history of JIS, their use, and what modern screwdriver bits are closest to them for the easiest fit. Hope this saves someone a headache.

http://www.webbikeworld.com/motorcyc...rivers-review/