Travelling to the beach and back on a bike with a China motor. 7th of April 2018 Sunnyside road. Victoria. Round trip 45km. 1.7l of fuel basically a full tank of fuel. Cylinder head leaking after about 300 km running 20:1 Will remove clean and re toque tomorrow, hopefully this fixes the leak. Will also try to establish engine volume as well. Will also consider mods on inspection of Cylinder head. Also considering a belt driven drive train. Engine sprocket and rear wheel - small belt will work? Breaks need consideration as well. Fuel economy about 4l/100km not real good! Not happy about this. Australia really is very beautiful such a great day! So still. Hope I'm posting in the right place I'm sure some smarty pance will let me know. Please comment if you wish. Like most people here, I'm learning quite a lot on-line and off-line so please be patient. Happy cycling.