rotax micro max evo MY20
MAIN JET (ON VP C9 RACE FUEL): 110 (105 IF AIR TEMP > 85 F / 29.5 C)
MAIN JET ON (93 PUMP FUEL W/ETHANOL): 111 (108 IF AIR TEMP >85 F / 29.5C)
FUEL / OIL RATIO: 44:1 (2.9 OZ / GALLON) OR (22.7 ML / L)
PIN HEIGHT: PIN 4
FLOAT HEIGHT: LEAN (JUST ABOVE MIDPOINT ON ROTAX FLOAT TOOL WHEN CARB IS UPSIDE DOWN)
AIR SCREW: 2.5 FULL TURNS OUT
IDLE SCREW: 4 FULL TURNS OUT (IDLE AROUND 2,500 RPM WHEN ENGINE IS COLD, SHOULD NOT REALLY IDLE WHEN HOT)
OPTIMAL WATER TEMP:
185 F / 85 C
SPARK PLUG: ROTAX GR9DI-8
SPARK PLUG GAP: 1.1 MM