BMW F 800 GT, Rider'S Manual

Page: 139 / 183

Engine
Engine design Two-cylinder four-stroke engine, DOHC control,
4 valves (operated via rocker arms), liquid cooling
for cylinder and cylinder head, integrated coolant
pump, 6-speed manual gearbox and dry-sump
lubrication
Displacement 798 cc (798 cm
3
)
Cylinder bore 3.2 in (82 mm)
Piston stroke 3 in (75.6 mm)
Compression ratio 12:1
Rated output 90 hp (66 kW), at engine speed: 8000 min
-1
with regular-grade gasoline, unleaded OE 87 hp (64 kW), at engine speed: 8000 min -1
with reduction of power to 35 kW
OE
48 hp (35 kW), at engine speed: 6750 min
-1
Torque 63 lb/ft (86 Nm), at engine speed: 5800 min -1
with regular-grade gasoline, unleaded
OE
60 lb/ft (82 Nm), at engine speed: 5800 min
-1
with reduction of power to 35 kW OE 51 lb/ft (69 Nm), at engine speed: 3500 min -1
Maximum engine speed max 9000 min
-1
Idle speed 1250
+50
min
-1
, with engine at operating tempera-
ture
12
137
z Technical data