"Somebody please answer this f
"Somebody please answer this for me. Why in the Yamaha 90C specifications is each of the 3 cylinders compression ratio slightly different? In the Yamaha Manual it shows cylinder #1 at maybe 8.67/1, cylinder#2 maybe 8.57/1, cylinder#3 at maybe 8.70/1 Is the stroke or the ports different in each cylinder? Why?"
"Somebody please answer this for me. Why in the Yamaha 90C specifications is each of the 3 cylinders compression ratio slightly different? In the Yamaha Manual it shows cylinder #1 at maybe 8.67/1, cylinder#2 maybe 8.57/1, cylinder#3 at maybe 8.70/1 Is the stroke or the ports different in each cylinder? Why?"
