




Product Features:
Honda iGX390, 11.7 HP Petrol Engine, Recoil/Electric Start, Horizontal Mount
The Honda iGX390 is a next-generation 4-stroke petrol engine designed for intelligent performance, fuel efficiency, and user convenience. It features an electronic, factory-programmed speed regulator, making it ideal for applications that benefit from advanced control features such as Auto-Idle and Auto-Choke.
Building on the renowned reliability of Honda’s GX series, the iGX390 introduces enhanced electronic management for optimal operation under varying loads.
ADVANCED FEATURES
- Electronic Governor System: Maintains stable engine speed even under changing loads.
- Programmable Speed Modes: Factory-set options include Auto-Idle, Fixed RPM Switch Mode, and Variable RPM Mode.
- Automatic Choke: Enables easy starting—even without a battery.
-Auto-Idle System: Reduces fuel consumption and noise, improving overall user comfort.

KEY SPECIFICATIONS
-
Engine Type: 4-stroke OHV single-cylinder petrol engine
-
Cylinder Sleeve: Cast iron for durability
-
Displacement: 389 cm³
-
Bore x Stroke: 88 x 64 mm
-
Compression Ratio: 8.2 : 1
-
Net Power Output: 8.7 kW (11.7 HP) @ 3600 rpm
-
Continuous Rated Power: 7.0 kW (9.4 HP) @ 3600 rpm / 6.4 kW (8.6 HP) @ 3000 rpm
-
Maximum Net Torque: 26.5 Nm (2.7 kgfm) @ 2500 rpm
-
Ignition System: Digital CDI with variable ignition timing
-
Governor System: Electronic for precise control
-
Starting System: Recoil and electric start options
-
Choke: Automatic for easy starting
-
Fuel Tank Capacity: 6.1 L
-
Fuel Consumption: Approx. 3.5 L/h @ 3600 rpm
-
Engine Oil Capacity: 1.1 L
-
Dimensions (L × W × H): 409 × 484 × 448 mm
-
Dry Weight: 37.0 kg
GENERAL DELIVERY INFORMATION
Thank you for visiting and shopping at www.flowfitonline.com. Following are the terms and conditions for the Shipping Policy for Harrier Fluid Power Ltd T/A Flowfit.
Orders will be processed and shipping during standard working hours (0830 – 1700 BST) Monday to Friday (excluding Bank Holidays). All orders placed before 4pm Monday to Thursday and 3pm on a Friday, are processed and despatched on the same business day. If we are experiencing a high volume of orders, shipments may be delayed by 1-2 Days. Please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we will contact you via email or telephone.
UNITED KINGDOM DELIVERY RATES & ESTIMATES
| United Kingdom | Price | Terms |
| FREE Delivery | FREE | Free United Kingdom delivery is available for orders over £250+VAT. Delivered by close of business next working day. |
| Express Delivery | 9.99 + VAT | UK Mainland Delivery under £250 + VAT. Delivered by close of business next working day. |
| Express 9am | £42.95 + VAT | Delivered by 9am next working day |
| Express 12pm | £20.95 + VAT | Delivered by 12pm next working day |
| Channel Irelands | ||
| Standard Delivery | £20.95 + VAT | Delivery between 2-3 working days |
| UK Highlands & Isles | ||
| Order valve below £99.99 + VAT | £31.95 + VAT | Delivery between 2-3 working days |
| Order valve over £99.99 + VAT | £28.95 + VAT | Delivery between 2-3 working days |
* Overnight delivery is only available for orders for certain delivery addresses within the United Kingdom. Please contact us beforehand to see if you are eligible.*
If your order is urgent and you need delivery to be guaranteed for a certain day or time please contact us as soon as possible. Our email is sales@flowfitonline.com or you can call us on 01584 876 033 for quicker turn around.
Collection – All customers are welcome to have their order collected by another courier of their choosing, or come to our depot in Ludlow, Shropshire to collect their order in person. We kindly ask that customers advise us in advance that they’re planning to collect their order so that we can make sure the order is complete before being collected.
INTERNATIONAL DELIVERY RATES & ESTIMATES
Shipping charges for your order will depend on weight and country the order is to be shipped to. All cost will be calculated and displayed at checkout. All orders for delivery within the EU will arrive on a 2-5 delivery service depending on Country location. All shipments outside the EU will arrive on a 3–7-day delivery service depending on Country location. Please check for accurate delivery times with our Sales department. If you Parcel has not arrived within the time expected please do not hesitate to contact us. Please ensure the ship to address you type during checkout is correct. We are not responsible for any wrong or undeliverable addresses.
CUSTOMS, DUTIES AND TAXES
Import duties, taxes, and brokerage fees are not included in the product price or shipping and handling cost. These charges are the buyer’s responsibility as we are only charging the transportation fee for your order. You may check with your country’s customs office to determine if there will be additional costs. The buyer is responsible for obtaining information regarding their country’s laws, regulations, and restrictions that may apply when purchasing our products. By placing an international order (shipping outside of the United Kingdom) the buyer is responsible for abiding by their country’s laws, regulations, and restrictions. If product is seized and destroyed by customs, we will NOT be responsible for the losses, product, or shipping refunds.
SHIPMENT CONFIRMATION & ORDER TRACKING
You will receive a Shipment Confirmation email once your order has shipped containing your tracking number(s). The tracking number will be active within 24 hours.
WORKING CLOSELY WITH TOP CARRIER EXPERTS
We use some of the top carrier companies in the world, although you can use your own carrier to collect the order. All deliveries require a signature on delivery. Below are our main carrier companies.

DAMAGES
Harrier Fluid Power Ltd T/A Flowfit is not liable for any products damaged or lost during shipping. If you received your order damaged, please contact us to file a claim. Please save all packaging materials and damaged goods before filing a claim.
RETURNS POLICY
Our Return & Refund Policy provides detailed information about options and procedures for returning your order.
