My 748 manual gives metric (mm)/Imperial (inch) Intake open 0.13 - 0.18/0.0055 - 0.0063 Exhaust Open 0.18 - 0.23/0.0075 - 0.0082 Intake Close 0.13 - 0.18/0.0055 - 0.0063 Exhaust close 0.08 - 0.13/0.0075 - 0.0082 So exhaust opening looks a bit tight on the horizontal Checkout the Desmo Due Paddock on Facebook |