Charcoal powerd moped

Just some finetooning and some paint and the project is compleete! Have to say it runs great! No hill presents a priblem, top speed about 40km/h. Idles nicely. Here are some pics:
Pic. 1: oil punp and air filter on the engine
Pic. 2: oil pump and mixing valve closeup
Pic. 3: air inlet and water injection valve hrotle
Pic. 4: water needle valve