We stock 10,000's of Carburetor Jets
Frequently Asked Questions
Q: What are the different stages for?
Stage 1 is for motorcycles with stock engine and with stock air intake and stock exhaust system . These kits include stock Pilot Jets, one size larger Main jets and one needle shims for each carburetor.
Stage 2 is for motorcycles with stock or lightly modified engine with improved air intake using stock air intake box and baffled aftermarket exhaust or lightly modified exhaust. These kits include one size larger Pilot Jets, two sizes large Main jets and one needle shim for each carburetor.
Stage 3 is for motorcycles with stock or lightly modified engines with individual air intakes and baffled aftermarket exhaust system. These kits include one size larger Pilot Jets, three sizes larger main jets and two needle shims for each carburetor.
Stage 5 is for motorcycles with lightly modified engines with individual air intakes and non-baffled exhaust system (racing use only) These kits include a set of two size larger Pilot Jets, a set of five sizes larger Main Jets and two needle shims for each carburetor.
Pro Stage is for those experimenting with different engine, air intake and exhaust systems.
These kits include 2 sets of Pilot Jets ( one size and two sizes over stock size), five sets of Main Jets ( from one to five sizes over stock size) and two needle shims per carburetor.
Please Note that the stage descriptions and related jet kits are correct for the majority of motorcycles and might need adjusted due to high altitude riding or other factors.
Q: Are the jet Kits for all carburetors or for one Carburetor?
A: You only need 1 Je Kit for your Motorcycle. If your motorcycle has two carburetors, you will receive two sets, if your motorcycle has 4 carburetor, you will receive 4 sets.
Q: What are the needle shims for?
A: Needle shims are used to raise the needle to allow for increased fuel delivery mainly during mid range RPM's. This is a cheaper but effective alternative to so called tapered needles. 2 needle shims are comparable to 1 clip position on the expensive needles. In combination with a better Pilot Jet, shimmed needles are highly effective.
Q: Why do you include Pilot Jets?
A: We are the only supplier of carburetor jet Kits providing Pilot Jets in our Jet Kits. The Pilot Jets are very effective in decreasing deceleration popping, improving cold start and low RPM performance. Combined with needle shims and better Main Jets, a total RPM range improvement is established.
Q: Is the Jet Kit easy to install?
A: Install Guide Download
|Important Shipping Info:
FREE SHIPPING: If applicable, limited to the Continental U.S. (48 States) only and Alaska and Hawaii and Canada.
Online orders cannot be shipped to a military APO/FPO.
FREE SHIPPING does include tracking information.
An item is considered delivered as soon as it leaves our Facility.
Seller is not Responsible for any shipping delays, lost, damaged or stolen packages.
All USA based Customers receive an email with Tracking Information as soon as the order has shipped.
International Customers will also receive a tracking number, but tracking updates may not be available once the order leaves the USA.
International Customers receive an email indicating that the order has been shipped.
Shipping address: verify that your shipping address is correct! Returned orders due to wrong address will require a new shipping payment
at $7.95 for USA and more depending on location for non-USA Orders.
CarbJetKits ships out the same or next Business day using USPS.
The Estimated Delivery Date provided at checkout is an estimate only and does not guarantee delivery by a specific date or time.
Order delivery times may be delayed due to circumstances such as credit authorization, backordered equipment, insufficient or inaccurate information provided when placing the order or incomplete payment.
We not offer weekend or holiday delivery options. All orders are processed and delivered Monday â€“ Friday only.
Couriers will leave packages at your door and do not require a signature.
CarbJetKits is the leading provider for easy to use, cost effective and optimal carburetor Jet Kits for Motorcycles.
Modifications to the air intake and/or Exhaust system to your motorcycle will change the air/fuel mixture to your carburetors causing a lean running condition.
CarbJetKits provides Jet Kits to compensate for the lean running condition.
Lean running conditions can destroy your engine and decreases overall performance.
CarbJetKits Jet kits are easy to install and do not require drilling the needle slides
Please contact us if you need any additional assistance