I picked up a set of marine 44 lbs 8.1 injectors and the O-rings are pretty meaty and look pretty good but my qeustion is do most of u re use the injectors or do u put new ones on. I know it's a preference thing but are this O-rings look pretty durable. So re use or get new?

 

The old ones will be fine as long as their not torn or anything. Just make sure to some kind of lube before trying to install them.