Engine Complete 10“ wheel w/o secondary air system 139QMB/QMA
Engine Complete 10“ wheel w/o secondary air system 139QMB/QMA
Engine Complete 10“ wheel w/o secondary air system 139QMB/QMA - complete engine for China-based 4-stroke mopeds with 10-inch wheels (3,5x10 / 3,00x10 / 90/90-10 etc.).The engine comes complete with all necessary drive components, alternator, starter motor etc. The carburetor is NOT included. When installing the engine, please take a close look at the alternator: If the ignition cable plug that comes with the new engine has more or less pins than the original engine, please keep the original rotor and alternator. This is a version with 2 pins. All other components are identical to the stock engine.Note: Always check engine and gearbox oil level after installation. We recommend replacing the rather poor oil used by Chinese manufacturers with higher quality engine oil; keep the original oil for a run-in period of about 50km, then change it. You should also check the valve play. We recommend a valve clearance of 0.08mm.For vehicles WITHOUT SAS (Secondary Air System).
- Brand: Standard Parts
- Availability: Currently not in stock
Technical Specifications
Performance Features
CNC Machined
Precision-engineered components for perfect fitment and maximum performance.
Lightweight Design
Optimized weight reduction for improved acceleration and handling.
Racing Performance
Track-proven design delivering consistent power and reliability.
Increased Reliability
Premium materials ensure long-lasting durability under extreme conditions.
High RPM Stability
Engineered to maintain balance and performance at maximum RPM.
Improved Cooling
Advanced thermal management for consistent performance.
Fitment & Compatibility
| Brand | Model | Engine | Years |
|---|---|---|---|
| Piaggio | Vespa S | 2-Stroke | 2008-2020 |
| Piaggio | Vespa LX | 2-Stroke | 2005-2015 |
Technical Data
Shipping & Delivery
Installation Information
Professional installation recommended. Improper installation may void warranty and cause engine damage.
Always use proper torque specifications and break-in procedures for optimal performance and longevity.