---
product_id: 116118033
title: "HAFIY 3.6/4HP 2/4 Stroke Heavy Duty Outboard Motor Boat Engine w/Water Air Cooling System"
brand: "hafiy"
price: "S$765"
currency: SGD
in_stock: false
reviews_count: 6
category: "Sporting Goods"
url: https://www.desertcart.sg/products/116118033-hafiy-3-6-4hp-2-4-stroke-heavy-duty-outboard
store_origin: SG
region: Singapore
---

# HAFIY 3.6/4HP 2/4 Stroke Heavy Duty Outboard Motor Boat Engine w/Water Air Cooling System

**Brand:** hafiy
**Price:** S$765
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** HAFIY 3.6/4HP 2/4 Stroke Heavy Duty Outboard Motor Boat Engine w/Water Air Cooling System by hafiy
- **How much does it cost?** S$765 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/116118033-hafiy-3-6-4hp-2-4-stroke-heavy-duty-outboard)

## Best For

- hafiy enthusiasts

## Why This Product

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

## Description

Specification: . Cooling: water/air . Maximum output: 3.6 HP . Displacement: 49 cm&#xB3; . Speed: 20km/h (200kg or 440 lbs) . Fuel tank: 1.3 L . Operating range: 4,500-5,000r/min . Idling: 2,700-2,800r/min . Lgnition system: CDI system . Starting system: pull start . Propeller mark: 7-1/4 x 5-A(inch) . Transom height: 42 cm (16.5 inch) . The engine and the propeller gear ratio: 2:1 . Gear ratio: 27/13 . Fuel mixing ratio: 20:1Attention: 1.Read instrustions before use this motor engine.2. How to start: a, pour mixed gas (with good Proportion)into the engine oil tank b, Press the carburetor oil pump 5-7 times. c, OFF the door switch ,( motor handle switch to &quot;OFF&quot; ) d, Throttle plus to 1/3, do not loose e, Quick start the handle for 3-5 times till you hear the voice sounds like car strated f, Then close the throttle( switch to &quot;ON&quot;) g, And then restart the handle and then the motor started. h, Below are the steps to start cold motor engine and you just need pull on the handle to ON for Hot motor engines. 3.The engine can work a minute after the engine started.4. Tips a, Gas and two stroke gasoline engine oil with Proportion 20:1(20L Gas and 1L engine oil) ,Wrong proportation will cause Engine cylinder. b,Please place it to water circustance, no water condition will damage the pump. Please check the Engine cooling water is normal or not when using. if there is no cooling water comes out,please stop the motor to avoid from cylinder overheated or Cylinder. c, Long time idling will cause Cylinder expansion cause cooling system will not work when motor idling. d, Check the gear oil in gear box regularly to make sure no water and enough oil inside.That may cause Gear or copper sleeve abrasion. Pay attention not to test the motor on the ashore but in the water.

## Features

- Features 360 degree steering rotation for reverse without gear shifting
- Start-In-Gear protection/clutch feature prohibits prop rotation while idling
- Superior engine water cooling system for improved engine performance
- Durable cast aluminum construction for superior corrosion protection
- Standard CDI ignition system for easy starting and improved performance

## Images

![HAFIY 3.6/4HP 2/4 Stroke Heavy Duty Outboard Motor Boat Engine w/Water Air Cooling System - Image 1](https://images-na.ssl-images-amazon.com/images/I/41y6oEiJQNL.jpg)
![HAFIY 3.6/4HP 2/4 Stroke Heavy Duty Outboard Motor Boat Engine w/Water Air Cooling System - Image 2](https://images-na.ssl-images-amazon.com/images/I/41ejshMPRxL.jpg)
![HAFIY 3.6/4HP 2/4 Stroke Heavy Duty Outboard Motor Boat Engine w/Water Air Cooling System - Image 3](https://images-na.ssl-images-amazon.com/images/I/41uTkn-mYUL.jpg)
![HAFIY 3.6/4HP 2/4 Stroke Heavy Duty Outboard Motor Boat Engine w/Water Air Cooling System - Image 4](https://images-na.ssl-images-amazon.com/images/I/51B3rPobs%2BL.jpg)
![HAFIY 3.6/4HP 2/4 Stroke Heavy Duty Outboard Motor Boat Engine w/Water Air Cooling System - Image 5](https://images-na.ssl-images-amazon.com/images/I/41SIjL-JUaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ If engine smokes. You over filled engine oil. Turn off motor. Correct right away. Peace
        
*by A***R on September 30, 2018*

Impressed. Was given as a gift. Oil and gas correctly. Break motor in your shop etc. Before you use in boat. One zirk fitting to grease. And propeller needs. 4-1 oil. Dont over fill oil. Has dip stick screw on cap. And im impressed.  For the price
  

### ⭐⭐⭐⭐ Good motor. But underpowered.
        
*by L***  on January 9, 2019*

I purchased the 4hp air cooled unit. Installed on my 12' kayak. Works well, however, the unit is underpowered. Probably more like 2hp. Also, there was no S/N stamped on the motor. I contacted the manufacturer to see if I was over looking it. They confirmed that it is not stamped on the motor. Other than that, everything is as advertised and starts on the first pull.
  

### ⭐⭐⭐⭐⭐ Is it  poor quality control or bad copy? Update customer service helped
        
*by L***E on October 18, 2018*

Spend a good portion of my afternoon trying to make this work with my small sailboat. After a good bit of dicking around I went back to my electric motor. I am by no means a novice to small enginesIt would start and run fine for a bit and then cut out and need to be primed again. It seems like it’s a poorly adjusted carburetor.  I checked all the fuel lines And followed the directions the best I could for the broken English.. I also used 93 octane gasoline. Either I just got a bad copy that was missed during quality control or it’s a poorly designed engine.The company contacted me to help resolve what we now think is a defunct carburetor. My rating now reflects that.
  

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**Shop now:** [https://www.desertcart.sg/products/116118033-hafiy-3-6-4hp-2-4-stroke-heavy-duty-outboard](https://www.desertcart.sg/products/116118033-hafiy-3-6-4hp-2-4-stroke-heavy-duty-outboard)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-03*