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TECHNICAL INFORMATION 8
8
Specifications
Description F4 750 ORO F4 750 S F4 750 S (1+1)
Crankcase and covers sand-cast die-cast die-cast
Head and cylinders sand-cast chill-cast chill-cast
Valves bimetal - bimetal/ bimetal/
Nimonic head single-metal single-metal
VALVE TRAIN
Type Double-overhead camshaft, radial valves
LUBRICATION
Type Wet sump
IGNITION - POWER SUPPLY
Type “Weber-Marelli” 1.6 M integrated ignition-injection system
Inductive-discharge electronic ignition, "Multipoint” electronic injection
Spark plugs Champion G59C Champion G59C Champion G59C
or NGK CR8E or NGK CR8E or NGK CR8E
Spark gap (mm) 0.5 ÷ 0.6 0.5 ÷ 0.6 0.5 ÷ 0.6
CLUTCH
Type Multiple-disc in oil bath
PRIMARY DRIVE
Number of teeth on crankshaft gear Z = 50 Z = 50 Z = 50
Number of teeth on clutch gear Z = 79 Z = 79 Z = 79
Transmission ratio 1.58 1.58 1.58
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