Hello all,

Just wondering what Oil Ratio does Polaris Trailboss 250cc injectors run at? Also, are they reliable or should I disable (how?) and premix? I'm running AMSoil Dominator which suggests 50 to 1.

Thanks,

Mark

 

They are normally reliable and are a variable speed oil delivery pump that are supposed to be calibrated around 50-1 ratio. A lot of people are afraid of auto injection systems,but can't remember when (if ever) I really found a bad one over the years.(EXCEPT on the 400 engines,the oil pumps that would corrode up from water mainly because of their location at the front of the engine) The main problems on any pump were people not bleeding pumps(small bleed bolt at the top) to remove any air which could cause problems. OPT