Motorcycle Engine Parts

YBR125 motorcycle gearbox auxiliary shaft assembly, shaft length 160MM, number of gear teeth (37T/23T/25T/32T/21T) and the original car gearbox is completely matched, direct replacement without adjusting gear engagement clearance; Equipped with driven gears of various gears, one-stop replacement of transmission power output shaft, no need to purchase gears separately; The gear tooth surface is quenched, resistant to wear and damage, to ensure smooth meshing and long-term use

YBR125 motorcycle gearbox spindle assembly, shaft length of 165.8MM, number of gear teeth (24T/18T/19T/22T/14T) and the original car gearbox completely match, direct replacement without adjusting the gear clearance; Equipped with various gear transmission gears, one-stop replacement of transmission power input shaft, save the trouble of purchasing gear separately; Gear tooth surface quenching treatment, high wear resistance, anti-tooth damage, to ensure the gear meshing

YBR125 motorcycle starting disc, the number of gear teeth, axle hole size and the original car starting mechanism completely match, directly replace the original starting disc without adjusting the meshing gap; Built-in one-way locking mechanism, power transfer when starting, automatic separation after engine running, avoid reverse drag damage start motor; Tooth surface quenching + copper bushing, not only ensure the wear resistance of gear meshing, but also reduce the

YBR125 motorcycle starting disc gear, gear number, axle hole size and the original car starting mechanism completely match, directly replace the original starting disc without adjusting the meshing gap; The gear tooth surface adopts quenching treatment, high wear resistance, anti-tooth damage, to ensure the stable meshing when starting; Copper bushing is built into the shaft hole to reduce the friction loss with the shaft and extend the service life of the starting plate; The

YBR125 motorcycle left and right handle assembly, the installation hole position, rod diameter and handle interface completely match, directly replace the original handle without adjusting parts; Made of thickened metal, high strength, not easy to deform, to ensure the stability of braking/clutch operation; The surface is covered with matte black rust prevention layer, corrosion resistance, not easy to rust, suitable for outdoor cycling environment; Handle radian in line with

YBR125 motorcycle starting shaft assembly, shaft diameter, gear tooth shape and YBR125 engine foot starting system fully match, directly replace the original starting shaft, no need to modify the starting mechanism; Shaft body and gear adopt carburizing and quenching process, high hardness, wear resistance, suitable for the instantaneous high load condition when the foot starts; Equipped with starting gear and claw assembly, after installation, it can be directly engaged with

YBR125 motorcycle connecting rod assembly, center distance 89MM, large and small hole/pin size strict standard YBR125 crankshaft + piston, directly replace the original connecting rod without changing the assembly gas mechanism; The connecting rod body adopts forged alloy steel, the strength is 3 times that of ordinary cast iron, which is suitable for high speed and high load of engine. Copper bushing (reduce wear buffer) + needle roller bearing (reduce friction resistance),

YBR125 motorcycle rocker arm assembly, rocker arm size, valve contact end radian and YBR125 camshaft/valve fully match, 2 sets of strict standard of the original factory quantity, direct replacement without adjusting the valve mechanism; Adopt precision cast steel molding, surface quenched treatment, high hardness, anti-wear, suitable for high frequency valve opening and closing conditions; The rocker arm end is integrated with valve clearance adjustment screw, which can be

YBR125 motorcycle gasket set, covering cylinder head, box, side cover and other key parts of the special gasket, hole position/size strictly match YBR125 engine and box interface, one-stop solution to the whole vehicle sealing requirements; Using oil resistant rubber + metal skeleton composite process, not only the elastic sealing force of rubber, but also the deformation resistance of metal, sealing effect is far better than ordinary paper gasket; The thickness and

YBR125 motorcycle middle cylinder upper and lower pad suit, the hole position and size of the upper pad and lower pad match the YBR125 middle cylinder completely, directly replace the original gasket, no need to adjust the middle cylinder installation position; Using oil resistant rubber + metal base composite process, good elasticity, deformation resistance, sealing effect is 3 times that of ordinary paper gasket, effectively prevent oil/gas leakage; Including the upper pad

What makes this starter motor "High Torque," and how does it improve cold weather starting? This starter motor features upgraded pure copper core coils and high-strength permanent magnets, which significantly increase magnetic flux and rotational force compared to standard motors. This optimized configuration delivers exceptional cranking torque instantly, allowing the motor to overcome high engine resistance effortlessly. Even in freezing temperatures or winter conditions

Why is this kit specifically advertised as "Oil Resistant"? What are the benefits for my motorcycle? Standard gaskets often degrade, swell, or soften when continuously exposed to hot engine oil, leading to messy leaks and pressure loss. This YBR125 kit is engineered with premium non-asbestos interface paper and high-grade fluororubber (FKM). Its advanced oil-resistant formulation and anti-corrosive coating can withstand extreme operating temperatures up to 200°C without

Premium Engine Gasket & Oil Seal Full Kit for Yamaha YBR125 Revitalize your motorcycle's heart with our Complete Engine Gasket & Oil Seal Set , precision-engineered specifically for the Yamaha YBR125 . Designed to withstand the intense pressures and high temperatures of daily riding, this comprehensive kit is your ultimate one-stop solution for preventing oil leaks, pressure drops, and engine sweats. Whether you are performing a routine overhaul or a complete engine rebuild,

Precision Cast Steel Motorcycle Rocker Arm Assembly Parts For Yamaha YBR125 2002 - 2013 High-Precision Engine Rocker Arm Assembly This professional-grade Motorcycle Engine Rocker Arm Kit is engineered for riders and mechanics who demand uncompromising power and long-term durability. Manufactured using advanced Precision Cast Steel technology, these components offer superior structural integrity and fatigue resistance, even under high-RPM and extreme thermal conditions.

Heavy-Duty Motorcycle Kick Start Shaft Assembly for Yamaha YBR125 & XTZ125 Restore your engine's starting power with precision-engineered reliability. Engineered specifically for Yamaha YBR125 and XTZ125 engines, this Kick Start Shaft Axle Assembly is the ultimate solution for replacing worn-out or damaged starting mechanisms. Built to meet or exceed OEM specifications, it ensures a smooth, consistent engagement every time you kick-start your ride. Key Features & Benefits

YBR125 motorcycle horizontal iron assembly, the installation hole and rear rocker arm/frame interface fully match, directly replace the original horizontal iron without adjusting parts; Including rear foot, side support, spring and other components, one-stop solution to the rear passenger foot + side support needs, save separate procurement; Support the replacement of off-road side support, adapt to different use scenarios, higher flexibility; Foot surface with non-slip

YBR125 motorcycle crankshaft assembly, shaft diameter, connecting rod size and 17T sket are fully matched with YBR125 engine, directly replace the original crankshaft, no need to modify the box; Before leaving the factory by professional dynamic balance detection, running vibration is small, reduce engine abnormal sound and component wear; Including crankshaft, connecting rod, sket complete set of components, one-stop solution to crankshaft aging problem, save the trouble of

YBR125 motorcycle gearbox main and auxiliary shafts, the main shaft (160MM long), auxiliary shaft (165.8MM long) of the number of teeth, shaft diameter size and YBR125 gearbox fully match, directly replace the original shaft without modifying the box body; Shaft body and gear are carburized and quenched steel processing, high hardness, wear resistance, suitable for high-load gearbox shifting conditions; The number of gear teeth of each gear (such as 23T/37T/25T, etc.) is

YBR125 motorcycle body plate, the installation hole position, size and YBR125 magneto fully match, with special fixing screw, directly replace the original body plate without modification; The main body is made of high strength carbon steel, resistant to deformation and wear, suitable for high speed magneto transmission conditions; Built-in rubber sealing ring, after installation can effectively prevent dust, water vapor into the magneto, protect the core components;

YBR125 motorcycle camshaft, shaft diameter, CAM profile and YBR125 cylinder head exactly match, with the outer 6003 / inner 6002 bearing + O-ring, directly replace the original camshaft, no additional purchase of accessories; Using Japanese technology processing, CAM profile accurately matches the valve lift demand, to ensure the valve opening and closing time is accurate, improve the efficiency of air distribution and power output; Speed bearing, reduce shaft wear; With O