hi there im wiring a gsxr 1000 k4 and it needs a 100 ohm resistor in one of the start wires from ignition i have the the resistor but does it have a flow side a in or out side?

No - a resistor is a static device that doesn't care which way round it's wired. The only concern is whether there are special physical concerns - connectors, whatever.

thank you thats a great help ill solder it in and see if it works. thought id better ask just incase i get it wrong

resistors are passive non-directional devices. only thinkg you need to worry about is power rating.