Product Description
ZXTDR U-TD205 replacement engine with a 125cc horizontal single-cylinder, 4-stroke, air-cooled design. It features a 4-speed transmission with 3 forward gears and 1 reverse gear, CDI ignition, and a 14-tooth front sprocket for 420 chain. Mounting dimensions and wiring details are provided in the specifications.
Product Specifications
BrandZXTDR
Manufacturer Part NumberU-TD205
Explicit Manufacturer Part NumberU-TD205
Displacement125cc
Engine typeHorizontal, single-cylinder, 4-stroke, air-cooled
Compression ratio9.0:1
Transmission4-speed; 3 forward gears and 1 reverse gear
Front sprocket420 chain, 14 teeth, 17mm
Bore x stroke2.06 x 2.19 in (52.4 x 55.5mm)
Rated power5.8kW at 7,500 rpm ±375 rpm
Maximum torque8.5N·m at 5,000 rpm ±250 rpm
Idle speed1,500 rpm ±100 rpm
IgnitionCDI
Top engine mount92mm
Bottom engine mount82mm
Mounting bolt spacing152mm (6 in)
WiringGear indicator plug with five wires; yellow and pink/yellow storage-battery wires; black/red signal-trigger wire; green ground wire; blue/white trigger-coil wires