A difficult aswer aswell, but here we go:

Direction of rotation CCW.( counter clockwise)
Inlet opens 22* BTDC ( before top dead center)
closes 59* ABDC ( after bottom dead center)
Exhaust opens 64* BBDC ( before bottom dead center)
closes 14* ATDC ( after top dead center)
* stands for degrees, which is not on my keyboard
There a diagram in the Suzuki workshop manual( page 3-29 engine) but I have no scanner, sorry. Somebody else?
Greetz
Kropatchek