---
product_id: 548658590
title: "125CC 4-Stroke Engine Motor Kit, Single Cylinder Air-Cooled Motor Engine for Honda CRF50 XR50 CRF70 Z50R QR50 Dirt Pit Bike, Engine Kit with Manual Clutch and PZ22 Carburetor"
brand: "liyuanjun"
price: "1931.96 DT"
currency: TND
in_stock: true
category: "Liyuanjun"
url: https://www.desertcart.tn/products/548658590-125cc-4-stroke-engine-motor-kit-single-cylinder-air-cooled
store_origin: TN
region: Tunisia
---

# 6.5 kW max power output 125cc displacement power 4-speed manual clutch control 125CC 4-Stroke Engine Motor Kit, Single Cylinder Air-Cooled Motor Engine for Honda CRF50 XR50 CRF70 Z50R QR50 Dirt Pit Bike, Engine Kit with Manual Clutch and PZ22 Carburetor

**Brand:** liyuanjun
**Price:** 1931.96 DT
**Availability:** ✅ In Stock

## Summary

> ⚡ Unleash raw power and control with every twist of the throttle!

## Quick Answers

- **What is this?** 125CC 4-Stroke Engine Motor Kit, Single Cylinder Air-Cooled Motor Engine for Honda CRF50 XR50 CRF70 Z50R QR50 Dirt Pit Bike, Engine Kit with Manual Clutch and PZ22 Carburetor by liyuanjun
- **How much does it cost?** 1931.96 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/548658590-125cc-4-stroke-engine-motor-kit-single-cylinder-air-cooled)

## Best For

- liyuanjun enthusiasts

## Why This Product

- Trusted liyuanjun brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ultimate Rider Control:** 4-speed manual clutch transmission offers precise gear shifts for adapting to any terrain with confidence.
- • **Precision Power Delivery:** 125cc 4-stroke engine delivers reliable and efficient performance for your dirt bike adventures.
- • **Optimized Fuel Efficiency:** PZ22 carburetor fine-tunes air-fuel mix, maximizing mileage while maintaining smooth throttle response.
- • **Plug & Play Compatibility:** Fits a wide range of Honda mini trail models, making upgrades and replacements hassle-free.
- • **Cool & Consistent Performance:** Air-cooled design prevents overheating, ensuring your engine runs smoothly on long rides.

## Overview

The LIYUANJUN 125CC 4-Stroke Engine Motor Kit is a robust, air-cooled single-cylinder engine designed for Honda CRF50, XR50, CRF70, and similar dirt pit bikes. Featuring a 4-speed manual clutch and a precision PZ22 carburetor, it delivers 6.5 kW of power at 7500 rpm with optimized fuel efficiency and reliable ignition via CDI. This kit includes all essential components for a seamless upgrade, ensuring cool, consistent performance and enhanced rider control on diverse terrains.

## Description

Buy LIYUANJUN 125CC 4-Stroke Engine Motor Kit, Single Cylinder Air-Cooled Motor Engine for Honda CRF50 XR50 CRF70 Z50R QR50 Dirt Pit Bike, Engine Kit with Manual Clutch and PZ22 Carburetor: Rebuild Kits - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- 【What You Will Get】Here 1x 125cc 4 stroke engine, 1x kick starter lever, 1x gear shift lever, 1x carburetor, 1x intake manifold, 1x cdi, 2x intake gaskets are included in the package. The carefully calibrated PZ22 carburetor optimizes the air-fuel mixture, enhancing fuel efficiency and providing a consistent and responsive throttle response, resulting you in a smooth and enjoyable ride.
- 【Main Parameters】Fuel Consumption: ≤367g/kw.h; Displacement: 125cc; Start Mode: Kick starter; Lubrication: SAE15W/40-SE, 4-stroke gasoline engine oil; Compression ratio: 9.0:1 Transmission: 4-speed, Manual clutch; Primary Reduction Ratio: 3.722; Clutch: Wet multi-plate; Max Power: 6.5 kW/7500r/min±375r/min; Spark Plug: A7TC; Carburetor Type: PZ22
- 【Compatible With】This engine fits for HONDA CRF50 / CRF70 / XR50 / XR70 / Z50 / Z50R / CT70 Mini Trail / Z50 / Minitrail Monkey / XL70 ST70 / QA50 / QR50 / CL70 / SL70 / 70 Passport / ST 90K2 / ST 90K1 / CS 90 / SL 90 / ZB 50. Please note this is not a guarantee, if you are unsure, please ask your local dealer.
- 【Precise Control】The engine's 4-speed, manual clutch transmission provides you with precise control over gear changes, allowing you to adapt to various road conditions and terrain, resulting in a more engaging and customized riding experience. Manual transmissions tend to be less expensive to manufacture and maintain than automatic transmissions, which can lead to cost savings for you.
- 【CDI Ignition& Air Cooling】This 125cc engine motor adopts CDI ignition which optimizes the timing and intensity of sparks and enhances fuel efficiency. The engine's air-cooled design ensures a cool performance. The air-cooling system efficiently dissipates heat, preventing overheating during prolonged rides and maintaining optimal engine temperature for a smooth and enduring adventure.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CD2F712S |
| Best Sellers Rank | #119,088 in Automotive ( See Top 100 in Automotive ) #7,940 in Powersports Parts |
| Brand Name | LIYUANJUN |
| Customer Reviews | 4.3 4.3 out of 5 stars (71) |
| Included Components | 125CC 4-Stroke Engine Motor |
| Item Type Name | 125CC 4-Stroke Engine Motor |
| Manufacturer | LIYUANJUN |
| Model | 125CC 4-Stroke Engine Motor |
| Model Name | 125CC 4-Stroke Engine Motor |
| Part Number | AC-YCZYQ-1495 |
| Warranty Description | 125CC 4-Stroke Engine Motor |

## Product Details

- **Brand:** LIYUANJUN
- **Manufacturer:** LIYUANJUN
- **Model Name:** 125CC 4-Stroke Engine Motor
- **Number of Items:** 1

## Images

![125CC 4-Stroke Engine Motor Kit, Single Cylinder Air-Cooled Motor Engine for Honda CRF50 XR50 CRF70 Z50R QR50 Dirt Pit Bike, Engine Kit with Manual Clutch and PZ22 Carburetor - Image 1](https://m.media-amazon.com/images/I/61wm1k3A-WL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Is it fix Honda atc70?**
A: Dear customer, this product is suitable for honda atc70, hope this can help you!

**Q: Whats the wiring diagram?**
A: Dear customer, 
It is our pleasure to answer your questions. At present, we have updated the wiring diagram picture in real time, and you can see the product wiring diagram. Hope this helps you! 
If you have any problems, contact me freely at any time, we will try our best to solve your problems. 
Good wishes!

## Frequently Bought Together

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-07*