Suzuki 2 Strokes

Can anything be deciphered by the color marks on the oil pump bodies?. I have 3 pumps in my possession. One has a yellow mark, one has a blue mark and one has no mark at all. The one off the 76 550 I am working on is blue. Does any of this mean anything?

Hi,mine has a spot of yellow on the pump,don't know if this means anything !
bike is a GT750A
Cheers,
Roger

I wonder if it identifies the model (380/550/750) that they suit? flow rates vary but I believes its possible to fit the wrong pump.

I'll bet that Ian / OJB knows

Cheers,
Mike