ORIGINAL: darock
It looks like the cowl will completely cover a side-mounted OS61. I've only trial fitted, but it looks like my engine will be completely covered. Only hole needed will be for the glowplug access. ok... and the needle valve.... and muffler outlets (Pitts muffler)
Can you measure the cowl space from the firewall forward till the nose of the cowl itself so i know how much room is there? An OS61 is quite a bit smaller then a Saito 90 twin