RE: Evolution 52NX Engine
As of yesterday I brought the motor back to the store I purchased it from and they are going to try and get a new one from evolution to replace their shelf and give me store credit and I'am going to be purchasing an OS.55AX. I have a .46AX now and I have yet to have any problems. I don't think you can go wrong with that motor. It is also lighter than the evo and has a bigger bore. Same mounting pattern and width dimensions. Thats my solution. My theory is that the evo has a poorly engineered carb causing it to load-up and if replaced may run the motor better. Thank you for your feed back and I would still like to now how you make out when they resolve the problem. Thanks, E