FAQ - Choosing your product

1. What is the power group or engine displacement of your old engine?

To help you choose the right engine, it's important to know the power rating or engine displacement of your previous engine. For older engines in particular, we recommend using the displacement as the primary measurement.

2. What is the orientation of your motor shaft?

• Is it a horizontal or vertical tree?

3. What is the exact size of the tree (diameter and length)?

• The most common diameters are: 18 mm, 19.05 mm, 20 mm, 22 mm, 25 mm or 25.4 mm.
• There are also conical trees of different dimensions.

4. Is your horizontal shaft motor equipped with a gearbox?

To find out, please refer to the section "How to check for the presence of a reduction gear on my motor" below.

5. What type of startup do you prefer?

• Pull-start only
• Electric start or a combination of both

6. What is your budget?

We offer brands suited to different budgets and uses:

• Entry-level : Ecomoteur, Loncin
• Good value for money : Developer
• Semi-professional : Kohler, Briggs & Stratton
• High-end : Honda, Vanguard

7. Does the brand influence the assembly?

Today, different brands adhere to standard specifications and mounting systems for motors of the same power and shaft dimensions. Therefore, the brand generally does not affect the installation. Please feel free to contact us if you have any questions.

8. What specific options are available?

Certain options may be offered for specific uses, without affecting the assembly:

• Various types of air filters
• Lighting coils
• Various accessories (gas deflector, spark arrestor, etc.)

For any further questions or personalized assistance, please do not hesitate to contact us. We are here to help you choose the engine perfectly suited to your needs.

A. Here are several methods to determine it:

1. Output tree alignment:
   If, viewed from above, the output shaft is perfectly aligned with the starter at the other end of the engine (the crankshaft passes through it completely), there is generally no reduction gear .
   On the other hand, if the output shaft is offset from the launcher, there is probably a reducer between the two.
2. Rotational movement test:
   Rotate the starter by hand a full turn and observe the output shaft on the other side. If it rotates a full turn, then there is no reduction gear.
3. If in doubt:
   Feel free to send us a photo of your engine. Our team will help you easily identify whether or not it has a reduction gear.

In the "Engine Replacement" section, you will find a selection of conversion kits specifically designed to replace the engines of the most common models from many well-known brands:

• Honda
• Iseki
• Subaru
• Staub
• Bouyer
• Various Italian brands

If your model is not listed

• Check out the "Customer Conversions" section: you will discover examples of replacements made by our customers on a wide variety of machines, including those for which no specific kit is currently offered.
• We also offer some "universal" kits to facilitate installation on less common or older models.

Need help?

Do not hesitate to contact us if you have any doubts or if you would like assistance in choosing the kit best suited to your machine.
Our team is available to provide any further information.

A. All motors manufactured today rotate counterclockwise when you stand facing the output shaft.

However, there are exceptions among older engines. Some models rotated clockwise, such as:

• Honda G25 and G28
• Some older Subarus
• Some older Kubota

In this case, a solution is sometimes possible but often requires compromises.

A. To effectively compare different engines, it's best to base your comparison on engine displacement rather than the power output stated by the manufacturer. Power was often measured differently depending on the brand and the era, which complicates direct comparisons, especially for older engines.

Typical power estimates per 100 cm³:

• Old 4-stroke petrol engines (in good condition) :
  Allow approximately 2.5 to 2.8 HP for every 100 cc .
• Modern engines (better optimized) :
  Expect to need between 2.75 and 3.4 hp for every 100 cc .

Several factors can cause these values ​​to vary, such as the type of fuel, altitude, and temperature conditions.

Concrete example:

• Honda GX120 (current model, 118 cc) :
  Honda announces a power output of 3.2 hp .
• Honda G150 (older model, 144 cc) :
  This engine is often attributed a power output of 5 hp .

In practice, a modern Honda GX120 and an old Honda G150 will offer very similar power despite the difference in engine displacement and the way the brand displays the figures.

A. All our engines are new and complete (except for versions called "short engines" or "bare engine").

• Each engine benefits from a minimum 2-year legal guarantee of conformity , which covers any manufacturing defects.
• Some manufacturers offer an additional warranty , which can extend coverage beyond these two years.

For details on extended warranties and after-sales service arrangements, please see the "After-Sales Service and Warranty" section.

A. Converting your engine using our LPG conversion kits offers many advantages:

• Quick installation: The conversion takes place in a short time, with minimal impact on your organization.
• Emission reduction: Fewer polluting emissions, allowing use in more densely populated areas or areas sensitive to air quality.
• Easier maintenance: Thanks to the low carbon content of propane, consumables such as spark plugs and oil have a longer lifespan.
• Increased safety: No need to refuel with highly flammable fuel on a hot engine, thus reducing risks to the user.
• Simplified storage: Engines running on LPG can be left for long periods without fuel without risk of fouling or blockage of the fuel system.
• Simple refueling: Simply replace or reconnect a new LPG bottle, without complex procedures.

Where to find the serial number on a Honda engine

Each Honda engine has a unique serial number, engraved directly on the side of the engine. This number consists of a combination of letters and numbers, usually in the following format:
XXXXX-0000000

Serial number location

• The exact location of the serial number varies depending on the Honda engine model; you can consult the Honda website to help you locate it.

https://www.honda-engines-eu.com/fr/pieces-detachees/ou-retrouver-le-numero-du-moteur

With this serial number we can offer you a replacement engine that matches your model.