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Yamaha Books & Manuals

SR 500 1978

Engine
Configuration	Air cooled 4-stroke, single cylinder S.O.H.C. (more)	Lubrication	Dry sump, trochoidal pump, oil in frame. 2.4 litres
Bore & Stroke	87 x 84 mm	Ignition	C.D.I. BP7ES or N-7Y
Capacity	499 cc	Charging system	(more)
Compression Ratio	9.0 : 1	Starter	Kickstart
Maximum Power		Transmission	44/16 530 103L + Joining link
Maximum Torque		Gearbox	33/14 (2.357)  28/18 (1.555)  25/21(1.190)  22/24 (0.916)  21/27 (0.777)
Fuel	VM34SS Mikuni (more)	Clutch	Wet multiplate (8 friction plates, 2.8mm thick, springs 41.2mm std)
Chassis
Frame	Tubular steel semi double cradle  27.5 deg (62.5 deg) caster  117 mm (4.6 in) trail (more)	Wheels	1.85-19 cast alloy  2.15-18 cast alloy
Dimensions  Weight  Wheelbase  Length  Seat Height	163 kg (359 lbs)  1,410 mm  2,105 mm	Tyres	3.50-S19-4PR.  4.00-S18-4PR.
Front Suspension	35 mm telescopics, 150 mm travel, 182 cc 10wt.	Brakes	298 x 5 mm front disc  267 x 5 mm rear disc
Rear suspension		Fuel Capacity	12 lit (3.2 US.Gal)(2.6 IMP.gal)
Performance
Top Speed		Fuel Economy
Acceleration
Additional Information

 

Model Information	1978	1979
Frame  Engine	2J2-000101  2J2-000101	2J2-020101  2J2-020101