Motorcycle Motors
This category groups the essential components for your motorcycle's operation: carburetors, starters, and spare parts. It meets the need to maintain or restore the reliability of your 2-stroke or 4-stroke engine.
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Motor component selection guide
The choice of engine parts depends on the displacement, engine type, and compatibility with original references.
Technical compatibility is the primary selection criterion. Universal carburetors cover a wide range of displacements, from 50 cc to 500 cc, but require precise adjustment of the flange and air filter diameter. For starters, the manufacturer's OEM reference (KTM, Piaggio, Honda) or engine model reference (GY6, NC250) is essential to ensure direct mounting and reliable drive.
The engine type (2-stroke or 4-stroke) and its orientation (horizontal or vertical) determine the suitable carburetor model. PWK or PZ19 type carburetors are designed for specific applications, such as 4-stroke horizontal engines or scooters. Always check the number of starter gear teeth and the electrical voltage (12V) to ensure compatibility with your ignition and transmission system.
Repair kits and fuel accessories, such as jets or gasoline filters, allow optimization of the air-fuel mixture and the longevity of the fuel system. M6 main jets allow precise adjustment for Dellorto and Mikuni carburetors. For GY6 engines, starter repair kits restore the starting system operation without replacing the complete unit.
Selection criteria for engine components
| Criterion | Selection advice |
|---|---|
| Displacement and engine architecture compatibility | Check that the engine type (2T or 4T) and displacement (50 to 500 cc) match the component's technical specifications to ensure optimal operation. |
| OEM references and mounting dimensions | Compare original references (KTM, Piaggio) or physical dimensions (flange diameter, number of gear teeth) to guarantee mechanical fit without adaptation. |
| Installation and drive specifics | Select parts according to the starter type (manual or automatic) and the exact number of starter teeth for reliable drive of the starting system. |
| Materials and resistance to stress | Prefer aluminum or zinc alloy components for carburetors to ensure good heat dissipation and resistance to vibrations. |
Frequently asked questions about motorcycle engines and parts
How to choose a universal carburetor for my motorcycle?
Choose a universal carburetor by checking your engine's displacement (50 to 500 cc) and engine type (2T or 4T). Ensure that the flange diameter and air filter type are compatible with your installation.
What is the difference between a KTM starter and a GY6 starter?
KTM starters are designed for off-road and cross motorcycles (XC, EXC) with specific OEM references and 410W power. GY6 starters are intended for mopeds and scooters from 125 to 200 cc, with a different mechanical architecture.
Why use M6 main jets?
M6 main jets allow precise adjustment of the air-fuel mixture on Dellorto and Mikuni carburetors. They are available in several calibers (55 to 115) to adapt engine performance.
How to repair a GY6 scooter starter?
You can use a starter motor repair kit to replace worn components of the starting system on 4-stroke GY6 engines from 50 to 150 cc.