2 stroke port timing numbers. I have tried different timing numbers on several low dollar saws, and have had a great time attempting to learn all I can. For me, the learning to do a new skill is the best part. You are robbing Peter to pay Paul. Guide to 2 - stroke Port Timing - Free download as PDF File (. It explains that port timings are influenced by both the time the port is open and the port area. None of these modifications are costly. Chainsaw Cutaway #2 : 2 stroke port timing explained!! A cutaway video showing port timing with a degree wheel. pdf), Text File (. This is the usage instructions for my 2 stroke engine porting calculator which is an Excel spreadsheet. Aug 17, 2019 ยท Excellent well written short and sweet Port Tutorial with some nice RPM versus Duration Charts. z3syf 8fe9i28q odnql hqle aq xlxo9y 4bgp hnk yw b8e