Frequently Asked Questions

At KMS we primarily use DHL and UPS for our shipping services. However, customers can also pick up their order directly at our head office at Spaarpot-Oost 19, Geldrop, 5667 KT, Netherlands.

At KMS we offer a wide range of payment options to ensure a smooth and easy purchasing experience for our customers:

• iDEAL
• Credit cards (Visa, Mastercard, Maestro, American Express)
• Apple Pay
• Google Pay
• PayPal
• Shop Pay
• UnionPay

We do our best to make the payment process as simple and straightforward as possible!

How to place an order at KMS

Placing an order with KMS is easy and straightforward! Just follow these simple steps:

1. Browse our website
   Navigate our website to find the products you want to buy. Use the search function or browse through the categories to find exactly what you are looking for.
2. Add products to your cart
   Once you have found the product you want, select the necessary options (such as size, color, or quantity) and click “Add to Cart.”
3. Check your shopping cart
   When you are ready, click the shopping cart icon to view your selected items. Check that everything is correct and adjust the quantities if necessary.
4. Proceed to checkout
   After confirming your order, click the “Checkout” button. You will be prompted to enter your shipping and billing information.
5. Choose your payment method
   Choose your preferred payment method from the available options. We accept various payment methods including iDEAL, credit cards, PayPal and more.
6. Confirm and place your order
   Once your payment information has been entered and verified, review your order. If everything is correct, click "Place Order" to complete your purchase.
7. Receive confirmation
   After your order has been placed, you will receive a confirmation email with all the details of your order and the estimated delivery time.

That's it! We'll process your order as soon as possible and notify you once it's shipped. If you have any questions, feel free to contact our customer service team!

How to return a product at KMS

If you need to return a product, we do everything we can to make the process as simple and hassle-free as possible. Just follow these easy steps:

1. Please check the return conditions
   Make sure the product is eligible for return. Items must be unused and in their original condition. Please note that some items, such as used electronics or fuel system components, may not be eligible for return.
2. Start the return request
   To initiate your return, you can contact our customer service via email at saleskms@vankronenburg.nl . You can also attach the return form for faster processing (if available).
3. Prepare the product for return
   Pack the product securely in the original packaging, if possible. If the original packaging is no longer available, make sure the product is well protected to prevent damage during transport.
4. Return the product
   You will be responsible for the return shipping costs. We recommend using a reliable courier service to ensure your product arrives safely. Please retain the tracking number for your reference.
5. Receive your refund
   Once the return has been processed and the product has been inspected, we will process the refund. Refunds are processed using the same payment method you used for the original purchase.
6. Return period
   Returns must be made within the stated return period, usually within 14 days of receiving your order.

If you have any questions or need help with your return, please feel free to contact our customer service! We are happy to help you.

How Long Will It Take Before I Receive My Package?

At KMS we do our best to process and ship your order as quickly as possible. The delivery time of your package depends on several factors, such as the shipping method you choose and your location. Here is a general overview:

1. Domestic Orders (Within the Netherlands)
   Orders within the Netherlands are usually delivered the next working day after shipment, depending on the chosen carrier.
2. International Orders
   For international orders, delivery times may vary depending on the destination country:
3. Order Processing Time
   We aim to process all orders within 1-2 business days. If there are any delays or issues with your order, our customer service team will notify you.
4. Track Your Order
   Once your order has been shipped, you will receive a tracking number so you can track your package until it arrives to you.

If you have any questions about delivery or need more specific information about your order, please feel free to contact our customer service team!

Does KMS ship internationally?

Yes, KMS ships worldwide! We not only ship within the Netherlands, but also to many other countries around the world. Our international shipping options are available to a wide range of destinations, both within Europe and beyond.

Shipping costs and delivery times for international orders vary depending on the destination country. During the checkout process, you can view the shipping costs and estimated delivery time for your specific location.

If you wish to place an order for delivery outside the Netherlands, you can simply continue through the checkout process and select your country.

If you have any questions about international shipping, please feel free to contact our customer service team for more information.

Is it safe to buy online at KMS?

Yes, buying online at KMS is absolutely safe! We take the safety of our customers very seriously and make sure that all your personal information and payments are well protected.

We use advanced security technologies, such as SSL (Secure Socket Layer) encryption, to ensure that your data is transmitted and stored securely. In addition, we work with trusted payment providers such as iDEAL, PayPal and credit cards to ensure that your payment is processed securely.

Your privacy is important to us, and we never share your information with third parties unless it is necessary to process your order.

If you have any questions about the security of your order or payment, please feel free to contact our customer service.

How can I get help if I need it?

If you need help, our customer service team is here to help! You can reach us in the following ways:

• Email : Send us an email at saleskms@vankronenburg.nl and we will respond as soon as possible.
• Phone : Please contact us by phone during office hours and our team will be happy to assist you.
• WhatsApp : You can also reach us via WhatsApp for a quick and easy chat. Just send us a message, and we will get back to you soon.

We're here to make sure your experience is as smooth as possible!

KMS products are designed to be easy to use, with comprehensive manuals and wiring instructions to assist with installation and tuning. Although the system is designed for ease of use, successful installation and tuning of an engine management system requires a thorough understanding of engine dynamics, electrical systems, and your specific engine configuration.

Installation involves not only wiring and connecting components, but also understanding the nuances of engine performance and calibration. Improper installation or adjustment can result in poor engine performance, reduced reliability, or even catastrophic engine damage. KMS cannot be held responsible for damage resulting from improper use, installation, or configuration of our products.

If you are not confident in your ability to properly install or adjust your system, we strongly recommend that you contact one of our authorized dealers or our support team for assistance. Our experts can guide you through the process to ensure that your system is properly installed and adjusted for optimal performance, keeping your engine running smoothly and safely.

By choosing professional installation, you're not only protecting your bike, you're also ensuring you get the most out of KMS's powerful features and tuning capabilities.

Which KMS products do I need?

• Depending on engine modifications and application.
• Check the KMS website for available products.
• Please contact a dealer or email for more details and pricing.

How much does a KMS system cost?

• Costs vary based on application and customer requirements.
• Retail prices can be found in the KMS price lists on the website.
• For a full quote, please contact a dealer or send an email.

Check serial number, software or firmware version

Software version:

• Open the KMS software → Version number is shown at the bottom left of the startup screen.

Firmware version & serial number:

• Open the KMS software → Go to 'Options (F4)' → Version information and serial number will be displayed at the top.

No communication with the KMS ECU

• Check that the communication cable is undamaged and correctly connected.
• Make sure the ECU has power (grounded and receiving more than 11V).
• Check that the communications port (COM port) is set correctly in the software.
• Check the compatibility mode of the PC software and install the latest drivers.
• If there is still no communication, the ECU may be locked with a password. Check this before contacting support.

ECU password set

• Please contact the previous tuner to unlock the password.
• If the password is lost or forgotten, please send an email to KMS with purchase information and serial number.

Engine won't start

Check ECU power supply:

• Must be grounded and receive more than 11V even during cranking.
• Check if there is communication with the ECU.

No ignition/spark:

• Check the spark by cranking the engine with the spark plugs removed or use the 'Output Test' in the KMS software.
• Check that the wiring is undamaged and that the ignition outputs are connected correctly.
• Spark plugs must be in good condition (correct color, heat range and electrode gap).
• Check the resistance of the spark plug wires and replace them if they are cracked or stiff.
• Check if the ECU receives a speed signal (RPM).

No injection:

• Test by starting the engine or use the 'Output Test' in the KMS software.
• Check the wiring and make sure there are no short circuits.
• ECU and injectors must be supplied with power (above 11V).
• Only high impedance injectors (>12 ohms) can be used.
• Check the fuel pressure to make sure the injectors can inject under high pressure.

No speed signal (RPM):

• Open the KMS software → RPM should be between 75 and 300 during startup.
• Check the trigger signal in the 'Crank Sensor Test'.
• Make sure the correct trigger wheel settings are in the software.
• Check that the correct type of crankshaft sensor (Hall or Inductive) is selected and connected correctly.
• Determining what type of sensor you have:
• Inductive sensor: Resistance between 0.5kΩ and 2kΩ between two pins.
• Hall effect sensor: No measurable resistance.
• When using a Hall sensor: check that it has the correct power supply (5V, 8V or 12V) and grounding.
• For an inductive sensor: make sure the signal and ground are rotated and preferably shielded.
• Sensor should be 0.5-0.7mm away from trigger wheel.
• If no RPM signal: use an oscilloscope or swap the sensor's signal and ground wires.

Checking ignition timing and firing order

• Check that the ignition outputs are connected correctly according to the firing order of the engine.

Set reference point:

• Angle between the crankshaft sensor and the first tooth after the missing tooth at TDC of cylinder 1.
• Should be set between 70 and 120 degrees.

Check timing:

• Remove the spark plugs and place them on the engine block.
• Mark the TDC point on the crankshaft pulley or flywheel.
• Use a timing light while starting to check the timing.
• If the ignition advance in the software differs from the timing lamp measurement, adjust the reference point in the software.

Note: In a wasted spark system the timing lamp will often show a value that is double the normal ignition advance.