Just to make sure... When looking down on the 450cc DSM injectors as they would be in the fuel rail, with the plugs sticking up, which side should have the positive wire running in and which side should the ground wire be coming from? Also, what would the injectors do if this was switched?

 

If you really have DSM injectors... a positive designation is clearly visible on the side of the connector body on the injector.

 

Ok, I see the designation. But just to know, what would the results be of reversing the terminals? How would the injectors behave?

 

The fuel would flow backwards.

 

i belive they would still open... gonna have to experiment on a set of old injectors today