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DYNO JET KIT STAGE 1 FOR YAMAHA XJR1300 2002 - 2003 DJY-4140

DYNO JET KIT STAGE 1 FOR YAMAHA XJR1300 2002 - 2003 DJY-4140

  • Product Code: 390903944542
  • In Stock. FREE Delivery on all UK orders over £20
  • £136.71

Product Details:

All Prices Include VAT


DYNO JET KIT STAGE 1 FOR YAMAHA XJR1300 2002 - 2003 DJY-4140


Stage 1 Kits

Designed for motorcycles with a stock engine using the stock airbox, air filter, and stock or aftermarket pipe. Stage 1 kits are fully adjustable to allow the use of well- designed aftermarket pipes and K&N stock replacement air filters. Stage 1 kits are designed to improve throttle response and driveability – in most cases; power increases of approximately 5% throughout the entire power range can be achieved.



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Overview

Whether you run a standard motorcycle, or a tuned sports model, Dynojet Carburettor Jet Kits can provide you with a simple and affordable solution to all your carburation problems. Dynojet Jet Kits increase power and smoothness throughout the entire rev range, while maintaining optimum fuel economy.

Dynojet offers a wide range of kits to fit any application. Several types (stages) of kits are available to fit your specific needs.

Each kit is assembled with full and comprehensive instructions, which show step-by-step installation.

Fuel Needle

The design of the needle is where Dynojet spends most of its R&D time. The needle is designed to give the correct amount of fuel throughout the midrange and is also designed to allow adjustment from groove 1 to groove 6 with little or no effect below 3000 RPM. With the correct end dimensions, the needle will have little effect on the main jet regardless of needle position, this isolates all circuits from each other and ensures easy set-up of the midrange, improve throttle response and driveability - in most cases; power increases of approximately 5% throughout the entire power range can be achieved.

Main Air Jet

This jet allows air into the emulsion tube to mix with fuel being drawn from the float bowl. It controls the amount of fuel that can be pulled from the float bowl in the venturi. Dynojet alters this only to achieve the flattest possible fuel delivery curve.

Pilot Circuit

This controls 100% of the engine idle and 25% of transition onto the needle. On some models the pilot air or fuel jet is changed to provide optimum fuel economy- Correct balancing of the carburettor also ensures a smooth idle.

Main Jet

We develop our main jets to correctly serve two functions: Static load and dynamic load. The static load is the fuel received through the main jet in the upper gears, where the tachometer is moving very slow. The dynamic fuelling portion of the main jet is the amount of fuel received from the jet in the midrange portion of the power.

Each kit is put together with full and comprehensive instructions which show step by step installation and testing procedures to ensure a perfect set-up every time. This is backed by free telephone support to Dynojet customers.

We only ship to the address on Paypal. If you require a specific address to ship the order to, please make sure that you enter this in the Paypal confirmation before confirming payment. We will not ship to any other address under any circumstances. If you have asked for a change in address please contact us as we will hold your item due to Ebay regulations only allowing us to send to the registered PayPal address.

We aim to process and dispatch your orders placed Monday - Friday; on the same or next day. Orders placed on the weekend and on Bank Holidays will be dispatched the following working day.

The majority of parcels are normally delivered between 1-5 working days but Royal Mail say it can take up to 10 working days to be delivered. If you have not received your item after 10 working days please contact us (please note weekends are not considered working days).

Next Day delivery can be arranged for an additional cost and must be paid for at the time of purchase. Cut off time for Next Day delivery is 2pm.

There is no Special Delivery service or Courier service on Saturdays, Sundays or Bank Holidays

All of our items are sent via Royal Mail/DPD/Interlink or the best available courier for your area. Although we have built an excellent reputation of delivering items before the estimated delivery date, sometimes items do get delayed by Royal Mail and this is beyond our control.

NOTE: Lost items can only be claimed from Royal Mail after 10 working days, which then we will take the necessary action. If you contact us before the 10 day period we may ask you to wait until the then before we take action.

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