Rotax 912-UL User Manual

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page 9 - 2
Jan. 01/2007
Effectivity: 912 Serie
OM Edition 1 / Rev. 0
BRP-Rotax
9.2) Fuel system
See fig. 5.
The fuel flows from the tank (1) via a coarse filter (2) the safety cock (3), water
drain cock (4) and fine filter (5) to the mechanical fuel pump (6). From the
pump fuel passes on to the two carburetors (7).
Via the return line (8) surplus fuel flows back to the fuel tank.
◆ NOTE: The return line serves to avoid formation of vapour lock.
Fuel, see Chapter 10.2.2).
zum Manometer /
to fuel pressure gauge
zum Tank
to fuel tank
fig. 5
00535
1
2
3
4
5
6
8
7

Rotax 912-UL Specifications

General

Displacement	1211 cc
Bore x Stroke	79.5 mm x 61 mm
Compression Ratio	9.0:1
TBO (Time Between Overhaul)	2000 hours
Engine Type	4-cylinder, 4-stroke
Power Output	80 hp
Cooling System	Liquid/air-cooled
Fuel Type	Avgas 100LL or unleaded automotive gasoline
Oil Capacity	3 liters
Fuel System	2 carburetors
Oil System	Dry sump forced lubrication with separate oil tank
Reduction Gear Ratio	2.43:1
Max Continuous Power	75 hp (56 kW)