The whole thing about motorcycles is that their operation is 'simple for safety'. The gear shift only goes in two dirctions so the gears are sequential; you cannot slip gears the way you can in a car. Because you can safely ride the clutch and accelerate hard in any gear, there is no need.
The 1974 was the only year with the 1 up 3 down shift pattern.
Yes motorcycle gears will shift up and down.
mostly 1 down and 3 or 4 up...when in first gear (1 down) lift shifter slightly to find neutral
Yes up until about 1975 or so.
Shift pattern from neutral is 1 down, 5 up.
A shift pattern is exactly what it sounds like it would be. A shift pattern is a pattern that moves or can be shifted.
one down five up
1 down 3 up
1 Down, 5 Up
One down, 4 up
Unmodified - 1down 3 up
1 down, 4 up