---
product_id: 561824805
title: "LIYUANJUN 4 Stroke Racing Engine, 140cc Engine Horizontal Motor with Gear Shi..."
brand: "liyuanjun"
price: "€ 289.42"
currency: EUR
in_stock: null
reviews_count: 8
url: https://www.desertcart.ie/products/561824805-liyuanjun-4-stroke-racing-engine-140cc-engine-horizontal-motor-gear
store_origin: IE
region: Ireland
---

# 8kW max power at 7500 RPM 4-speed manual clutch gear system 140cc high-performance displacement LIYUANJUN 4 Stroke Racing Engine, 140cc Engine Horizontal Motor with Gear Shi...

**Brand:** liyuanjun
**Price:** € 289.42
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Dominate the dirt with power and precision!

## Quick Answers

- **What is this?** LIYUANJUN 4 Stroke Racing Engine, 140cc Engine Horizontal Motor with Gear Shi... by liyuanjun
- **How much does it cost?** € 289.42 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/561824805-liyuanjun-4-stroke-racing-engine-140cc-engine-horizontal-motor-gear)

## 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

- • **Complete Engine Kit:** Includes carburetor, CDI, gear shift & kick starter levers for instant installation.
- • **Kickstart Reliability:** Classic kick starter ensures you’re always ready to roll, no battery needed.
- • **Race-Ready Powerhouse:** Unleash 8kW of peak power for adrenaline-fueled rides.
- • **Versatile Compatibility:** Fits a wide range of Honda mini dirt bikes—upgrade your ride effortlessly.
- • **Precision 4-Speed Manual Clutch:** Seamlessly shift through gears with a responsive 4-speed transmission.

## Overview

This 140cc single-cylinder, 4-stroke horizontal engine delivers 8kW max power and 9.5N.M torque, featuring a 4-speed manual clutch and kick starter. Designed for Honda CRF50 and similar mini dirt bikes, it comes as a complete kit including carburetor, CDI, and gear shift lever, ensuring a seamless upgrade for high-performance off-road adventures.

## Description

Specifications:Type: Single-cylinder, horizontal, 4-strokeGear: 1N234Ignition: CDIDisplacement: 140ccBore x Stroke: 55mm x 59mmMax. Power & Corresponding Speed: 8kw(7500±375)Max. Torque & Corresponding Speed: 9.5N.M(5000±250)Start Mode: Kick starterCompression: 9.0:1Engine Oil: 900ml, 15W/40-SE, 4 strokeOil GEARS: 4 SPEED MANUAL CLUTCH, 1N234SPROCKET: 15T 428 17mmPackage includes:1 x 140CC ENGINE1 x Kick Starter Lever1 x Gear Shift Lever1 x set Package1x Carburetor1*CDI

## Features

- 【Wide Application】(For the reference)The engine fitd 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.
- 【Main Parameters 1 】Gear: 1N234; Ignition: CDI; Displacement: 140cc; Bore x Stroke: 55mm x 59mm; Max. Power & Corresponding Speed: 8kw(7500±375); Start Mode: Kick starter; Compression: 9.0:1;
- 【What You will Get】This 4 stroke racing engine kit includes 1 x 140cc engine, 1 x kick starter lever, 1 x gear shift lever, 1 x set package, 1x carburetor,1xcdi. All of these can be your good help on your travel road!
- 【Main Parameters 2 】Engine Oil: 900ml, 15W/40-SE, 4 stroke; Oil GEARS: 4 SPEED MANUAL CLUTCH, 1N234; Max. Torque & Corresponding Speed: 9.5N.M(5000±250); SPROCKET: 15T 428 17mm
- 【Quality Assurance】We have a strict quality assurance system, and products are tested before they are put on the market. If you encounter any problems, we will provide the best service and give you the most satisfactory answer!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | LIYUANJUN |
| Brand | LIYUANJUN |
| Manufacturer Part Number | AC-YCZYQ-4930 |

## Images

![LIYUANJUN 4 Stroke Racing Engine, 140cc Engine Horizontal Motor with Gear Shi... - Image 1](https://m.media-amazon.com/images/I/61yernKYm7S.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ The kids love it
*by L***A on March 20, 2025*

Great little engine! Fast shipping! Got this as a replacement for one of the kids little off-brand atvs. Bolted right in. Sounds great! East to install. There was no instructions for the wiring harness so there was a little trial and error hooking it up but works great. Starter solenoid died after cranking it over less than 3 times trying to get it started for the first time but luckily I had the one off the old harness. Get a better air filter. The one in my kit was just foam and already ripped and crumpled. Oh and the shift lever is unusable in my application. I honestly don't know what it would actually work in. LolOverall is it perfect? Nope. But I still have it 5 starts because, the shipping was really fast. Faster then expected by 3 days! Engine is nice. Sounds good. Direct bolt in replacement. Some of the accessories that came in the kit were a little chincy and unusable. Overall it's a great deal

### ⭐⭐⭐⭐⭐ The quality of customer service is outstanding
*by L***T on May 17, 2025*

Fantastic engine and customer service the engine showed up early and was in perfect condition besides one cable that got pinched and cut but I messaged them and they refunded me some money to purchase a new one. Can't complain with that, thank you much!And for anyone wondering how to wire the engine I've attached a picture from the Internet on how it's done.

### ⭐⭐⭐⭐ 3rd motor I’ve purchased!
*by S***J on July 2, 2025*

Just opened my 3rd engine from them and there is motor oil on outside. The first 2 are still doing good haven’t had issues feels a little slower but probably need to be fully broken in!! Sure it happened during the shipping the foam was cracked pretty bad so hopefully it wasn’t dropped or rolled over. Kind of scared this one was damaged in the shipping process will do update after test!

## Frequently Bought Together

- LIYUANJUN 4 Stroke Racing Engine, 140cc Engine Horizontal Motor with Gear Shift Lever Single-Cylinder Motor For Honda CRF50 Pit Dirt Bike 4 Speed Manual Clutch Carburetor
- Mighty Max Battery YTX4L-BS - 12 Volt 3 AH, 50 CCA, Rechargeable Maintenance Free SLA AGM Motorcycle Battery
- AloneGoer GY6 Racing Ignition Coil SSR 125 A7TC Spark Plug Wire for 50CC 150CC 110CC 125CC 80CC 90CC Moped Scooter ATV Go Kart Pit Dirt Bike Engine Motorcycle High Performance Parts

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-07*