Yamaha MT-03
48 hp, 660 cc, 423 lbs2006 - 2015
Kawasaki ER5
50 hp, 498 cc, 425 lbs1999 - 2005
EngineYamaha MT-03Kawasaki ER5
Displacement660 cc498 cc
Max power48 hp (@6 250 RPM)50 hp (@9 000 RPM)
Max torque41 lb ft (@5 500 RPM)18 lb ft (@7 200 RPM)
Redline7 500 RPM10 500 RPM
Idling speed1 200 RPM1 200 RPM
ManagementFuel InjectionCarburetor
LayoutSOHC SingleDOHC Inline-2
Compression10.00:19.80:1
Oil capacity3.22 quart3.22 quart
Oil type10W40, Yamalube 10W40, Shell Rotella 10W4010W40
Spark plug typeNGK CR7ENGK DR9EA, DENSO X27ESR-U
CoolingLiquidLiquid
Valves48
Bore100.0 mm74.0 mm
Stroke84.0 mm58.0 mm
Weight to power8.82 lbs/hp8.51 lbs/hp
Power to weight283 hp/2500lbs293 hp/2500lbs
Battery typeGT9B-4, 12V 8Ah12V 10Ah
GearboxYamaha MT-03Kawasaki ER5
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain type
Gears count56
Primary ratio2.0832.652
Final drive3.1332.47
1. gear2.5 (34 mph)2.571 (45 mph)
2. gear1.625 (52 mph)1.722 (67 mph)
3. gear1.15 (73 mph)1.333 (86 mph)
4. gear0.909 (93 mph)1.125 (102 mph)
5. gear0.769 (109 mph)0.961 (120 mph)
6. gear0.851 (135 mph)
ChasisYamaha MT-03Kawasaki ER5
Frame typeTruss diamondSteel cradle frame
Front susp.Telescopic fork, 5.12 in travelFork
Rear susp.Swingarm, 4.72 in travelDual shock