Hey guys I was going to buy the rotary aviation OMP adapter to allow it to inject 2 stroke using the stock system. Someone told me about this write up and I figured Id try it first. The only part Im worried about is drilling the hole to allow an oil return path. The rotary aviation piece doesnt require this as far as I know, is this really necessary?

Here is the write-up;

https://www.rx7club.com/showthread.p...hlight=omp+mod

 

I have yet to do this myself, but patman posted a pretty complete write-up you might check out as well:

"DIY 2- Stroke Metering Oil Pump Mod"
http://howto.globalvicinity.com/gv_w...=203&co=1&vi=1

I believe he's got an answers for your question in there around step 2.