Engine and transmission Switch unit Engine type: 1 cylinders, 2-stroke, Single Displacement: 176 cc (10.75 cubic inches) Bore × stroke: 64.5 mm × 54 mm (oversquare – shortstroke) Throttle: Cable operated Fuel and ignition Sparks per cylinder: 1 Fuel supply system: Carburetor Ignition type: Digital CDI Engine mounting: Transverse Lubrication system: Wet sump Gear box: Manual Clutch: Wet, multiple discs, cable operated Final drive: Chain Spark plug pipe type: NGK, B8ES Chassis … Continue reading

Yamaha FS1-E (Fizzy)

Design Originally the FS1-E was built as a five-speed transmission light motorcycle. It was originally called the FS1. Due to the regulations in Europe, the FS1-E was downtuned with a four-speed transmission. The Yamaha FS1-E has a 49 cc single cylinder two-stroke air-cooled rotary disc-valved engine with a four-speed gearbox. The FS1-E was the FS1 with the suffix E, which stood for England (differing from the … Continue reading Yamaha FS1-E (Fizzy)

Yamaha R1-z(Two stroke 250cc)

  Engine Type: Parallel Twin , liquid cooled, 2-Stroke, crankcase reed valve Capacity: 249cc Bore and Stroke: 56.4mm x 50.0mm Compression Ratio: 6.4:1 Fuel system: Carburetor, 2 x 28mm, Mikuni TM 28SS Starting: Kick starter Maximum Power: 45PS @ 9500 rpm Maximum Torque: 3,7 kg-m @ 8500 rpm   transmission   Clutch: Wet multi-plate type Transmission: 6-speed constant mesh Gearshift pattern: 1-down , 5-up Primary reduction: 2.545(56/22) Final reduction: 3.214 (45/14) Gear ratios 1st: 2.333 (35/15) 2nd: 1.647 (28/17) 3rd: 1.315 4th: 1.083 5th: 0.961 … Continue reading Yamaha R1-z(Two stroke 250cc)

Yamaha Tx-750(2 stroke)

The TX750 was a YAmaha motors made in 1973 and 1974. It was loosely based on the XS650 but had what Yamaha called an “Omni-Phase balancer” to counter vibrations which are inherent in a parallel twin with the crankshaft set at 360 degrees(both pistons rise at the same time). Using a pair of balancers (one to stabilize the imbalance of the cylinders, the other to counter the rocking caused … Continue reading Yamaha Tx-750(2 stroke)