3899 | YX 140cc Electric Start Engine Complete Assembly
Description
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DESCRIPTION
Original YX140cc, this is our top selling engine, with high performance and economy now in electric start.
it's a perfect replacement engine or custom builds or upgrades.
HIGHLIGHTS
- Original Yinxiang
- Universal CRF50 Engine Mount
- 16mm Kick Start Shaft
- Includes Kick Start, Manifold, Gear Lever, Front Sprocket
SPECIFICATIONS
| ENGINE & TRANSMISSION | |
| Engine | YX | 4 Stroke |
| CC Rating | 140cc |
| Gearbox | Manual | 4 Speed (N1234) |
| Starter | Kick/Electric |
| Carburetion | Mikuni VM22 26mm (not included) |
| Exhaust | CRF Bend |
| Final Drive | 420 or 428 |
| Top Speed | 90kph / 55mph (depending on gearing) |
| Mounting | Universal CRF50 |
| Stator Connection Type | 6 Pin Plug (see photo) |
| Cooling | Air or Oil Cooled |
| Front Sprocket | 428 x 15 |
| Packaging Size (LxWxH) | N/A |
| Weight | 25 kg |
| Oil | 10w 40 - 4 Stroke Motorcycle Oil (1 Litre) |
RECOMMENDATIONS
- Carburetor: VM22 with Main #100 and Pilot #22.5
- Throttle: Recommend part number #3003 or others will also work
- Throttle Cable: Depends on length required - double tip cables are best.
- Clutch Cable: Start in any gear type
- Kick Start: MX bottom pivot type is best
- Lighting Setup: Will need to purchase a lighting stator, wiring harness and voltage regulatorĀ
- Oil Cooler: YX type oil cooler lines (after many tests we found the oil cooler is not necessary for this engine)
- Stator Guard: Recommend CNC type #9212 will need updated flywheel cover or cut a small piece from cover for fitment
Ā
No Reviews!
![]()
DESCRIPTION
Original YX140cc, this is our top selling engine, with high performance and economy now in electric start.
it's a perfect replacement engine or custom builds or upgrades.
HIGHLIGHTS
- Original Yinxiang
- Universal CRF50 Engine Mount
- 16mm Kick Start Shaft
- Includes Kick Start, Manifold, Gear Lever, Front Sprocket
SPECIFICATIONS
| ENGINE & TRANSMISSION | |
| Engine | YX | 4 Stroke |
| CC Rating | 140cc |
| Gearbox | Manual | 4 Speed (N1234) |
| Starter | Kick/Electric |
| Carburetion | Mikuni VM22 26mm (not included) |
| Exhaust | CRF Bend |
| Final Drive | 420 or 428 |
| Top Speed | 90kph / 55mph (depending on gearing) |
| Mounting | Universal CRF50 |
| Stator Connection Type | 6 Pin Plug (see photo) |
| Cooling | Air or Oil Cooled |
| Front Sprocket | 428 x 15 |
| Packaging Size (LxWxH) | N/A |
| Weight | 25 kg |
| Oil | 10w 40 - 4 Stroke Motorcycle Oil (1 Litre) |
RECOMMENDATIONS
- Carburetor: VM22 with Main #100 and Pilot #22.5
- Throttle: Recommend part number #3003 or others will also work
- Throttle Cable: Depends on length required - double tip cables are best.
- Clutch Cable: Start in any gear type
- Kick Start: MX bottom pivot type is best
- Lighting Setup: Will need to purchase a lighting stator, wiring harness and voltage regulatorĀ
- Oil Cooler: YX type oil cooler lines (after many tests we found the oil cooler is not necessary for this engine)
- Stator Guard: Recommend CNC type #9212 will need updated flywheel cover or cut a small piece from cover for fitment
Ā
No Reviews!

