1997 Yamaha Seca II 
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Technical Specifications |
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ENGINE |
Type |
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Air cooled, 4-Stroke, DOHC, in-line 4 cylinder |
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Displacement |
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599cc |
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Horsepower |
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52.7bhp @ 8500 RPM |
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Torque |
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38.3 ft-lb @ 7000 RPM |
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Bore & Stroke |
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58.5mm x 55.7mm (2.303 in. x 2.192 in.) |
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Compression Ratio |
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10:01 |
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Fuel System |
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Normally aspirated by four Mikuni BDS26 |
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Valvetrain |
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4 valves per cylinder |
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Ignition system |
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Digital T.C.I., electric start, 12V/8AH battery |
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DRIVETRAIN |
Clutch |
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Wet-type, multiple disc |
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Transmission |
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Constant mesh, 6-speed |
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Primary reduction |
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2 spur gear |
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Secondary reduction |
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chain drive |
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Gear ratios |
1st |
2.733:1 |
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2nd |
1.778:1 |
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3rd |
1.333:1 |
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4th |
1.074:1 |
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5th |
.913:1 |
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6th |
.821:1 |
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CHASSIS/SUSPENSION |
Chassis type |
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Aluminum double cradle, 25 degree caster angle |
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Overall length |
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82.5" |
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Overall width |
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28.9" |
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Overall height |
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47.4" |
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Seat height |
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30.3" |
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Wheelbase |
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56.9" |
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Ground clearance |
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5.91" |
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Dry weight |
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419lbs |
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Front suspension |
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Telescopic fork, 5.51" travel (140mm) |
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Rear suspension |
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Swingarm Link, 4.33" travel (110mm) |
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Shock absorber, front |
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coil spring, oil damper |
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Shock absorber, rear |
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coil-gas spring, oil damper |
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STEERING/BRAKING |
Steering type |
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Taper roller bearing |
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Lock to lock angle |
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36 degrees left, 36 degrees right |
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Front brake |
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Single disc, 320mm |
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Rear brake |
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Single disc, 245mm |
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WHEELS/TIRES |
Front wheel |
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Cast aluminum, 17xMT2.50 |
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Front tire |
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110/80-17 57H |
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Rear wheel |
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Cast aluminum, 18 x MT3.50 |
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Rear tire |
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130/70-18 63H |
