Virtually everyone knows that a spark plug ignites the fuel/air mix that explodes and pushes the piston down the cylinder. It all sounds pretty straightforward. But did you know that everything from the size and shape of the combustion chamber through to the design and angle of the valves have an influence on the type of spark plug? Which means that it's crucial that you always use a NGK plug.
If you’re unsure of which plug is suitable for your bike, you can phone or email Alf England Motorcycles using the Contact Us page.
Set of 3 NGK spark plugs suitable for Yamaha Niken and Niken GT
Image for illustrative purposes only.
Please use the tables below to find the perfect fit for your Yamaha clothing. All sizes are in centimetres. If you have any further questions about sizing, or anything else, please get in touch via the contact page here.
CHEST IN CM
WAIST IN CM
HIP IN CM
CHEST IN CM
WAIST IN CM
HIP IN CM
18 months - 2 Years
CHEST IN CM
WAIST IN CM
HIP IN CM
How long will my delivery take?
We aim to deliver your order as soon as possible. An average order will take 5-7 working days from point of order to delivery, though we aim to complete the transaction quicker. All delivery times are estimated and are based on working days, this excludes weekends and public holidays.
Do I have to pay a delivery charge?
We offer delivery to the UK, any delivery charges due will be specified during the checkout once your delivery address has been entered.
Will you price match my item?
As our discounts and promotions are only for a limited time, we do not offer price matching on orders placed outside the promotional period.
Can I cancel my order?
We are unable to cancel orders once the checkout process has been completed. Please check your order carefully before clicking 'buy now'. You are able to return an item within 28 days for a full refund.
Can I change my delivery method after placing an order?
We are unable to change the delivery method once the checkout process has been completed. Please check your order carefully before clicking the 'buy now' button.
What delivery services do you offer?
Delivery times are estimated and are based on working days, this excludes weekends and public holidays. Please note we are closed on Sundays and Mondays and as such all orders placed over the weekend will be dispatched on a Tuesday.
For UK deliveries we offer the following services: Royal Mail 48 ®
Why has my order not been dispatched?
This could be because we are currently replenishing our stock. If the item becomes available it will be dispatched as soon as possible and you will receive a confirmation email. If stock is no longer available your order will be cancelled and we will send you an email notification.
Why haven't I received any confirmation emails?
All notification emails are sent to the email address that has been used to place the order, if the email address was entered incorrectly you will not receive the email. Please also make sure to check your spam folders of the email address. If you still have not received any emails please contact us.
Why haven't I received a dispatch email?
Please check for the email in your spam folders of your inbox. You can also view your dispatch notifications by logging into your account.
If you have not received a notification and your account does not show that your order has been dispatched after 24 hours, please contact us.
Why can't I find my address?
If the property is a new build, or is within a new development it can be difficult for a postcode finder to recognise your address. The postcode finder may also be unable to locate the address you are looking for if it is outside the UK.
If you are unable to find your address, you can manually enter your address by selecting this option in the Delivery Address section.
Why have I received an item with a different price tag?
It may have been mislabelled in our warehouse but you will still be charged the price advertised on our website at the time of purchase. We are unable to price match for mislabelled items.
Why have I received an item without price tags?
Items ordered online are often sent without tags, this will not affect your rights to return them within 28 days of delivery.
What can I do if there is something missing from my order?
If your parcel does not contain your entire order, please check the paperwork enclosed to see if the items you have received correspond with your invoice as some orders are split by our team. Some products may arrive separately to the rest of your order depending on how they have been packaged.
If the packing note states an item should be in your parcel but it is not, please contact us. Please note full investigations into missing item can take 5 working days.
Why has my order been cancelled?
We are sorry if we’ve been unable to fulfil your order. Once an order is received it is entered into our dispatch database, however on rare occasions the stock for your order may no longer be available and may result in the order being cancelled. You should not be charged for orders that have been cancelled and if you believe that you have been charged, please contact us.
Please note that we are unable to offer alternative items, therefore if the product is no longer be available, the item will be cancelled from your order. If the order/item was part of a promotional offer this could result in the promotion no longer applying to your order.
If you are not completely satisfied with your purchase, simply return the item(s) to us in their original condition* within 28 days of receipt. We will issue a refund upon receipt and examination. Items should wherever possible be returned in their original (or similarly robust) packaging with a completed Returns Form.
If you require a different item you will need to place a new order online and return the original item for a refund. If you require a different size or colour of the same item, please return the item including a completed Returns Form requesting the different size/colour and we'll do our best to get one out to you upon receipt. If the new size/colour is unavailable we will refund your order and email to inform you.
Return postage charges are non-refundable unless your order was faulty or incorrect.
Please return items to:
Alf England Motorcycles, Leicester Road, Bedworth, Warwickshire, CV12 8AH
Faulty or incorrect items
If the item you received is faulty or not what you originally ordered, please complete your return form and return to the address above. Due to technical processes used, it is imperative that each individual garment’s washing instructions are adhered to exactly as stated on the care label. Each garment is wash-tested thoroughly and quality-checked on each production batch prior to leaving the supplier. We cannot accept returns that have been soiled, torn or damaged due to incorrect washing or use.
Part of order is missing
Regrettably mistakes can happen. If you have received your order and an item is missing, please first check your dispatch note for any indication that the item is being dispatched separately. If the item is not included on the dispatch note, it will be arriving separately. If the item is listed but not present, please email firstname.lastname@example.org quoting your order number and stating the missing item and we will investigate the matter further.
If you are returning a non-faulty item, then the cost of returning the item to us is your responsibility. Please note the item is your responsibility until it reaches us; for your own protection, we recommend that you send the parcel using a delivery service that insures you for the value of the goods. We cannot refund return items lost in the post.
For more information about returning items to us, please see the information page on our website.
When trying on items of clothing, please ensure that you are not wearing make-up, perfume/aftershave or deodorant which may leave a scent or marks on the item. We will be unable to accept the return of any item where there is evidence that these instructions have not been followed.
Alf England Motorcycles Leicester Road Bedworth Warwickshire CV12 8AH