Genuine Japanese made Mikuni VM18-144 Factory aftermarket Racing Division Carburetor.

 The Mikuni VM18-144 is supplied with the following factory jetting installed:

 Pilot jet 30 (VM22/210),  Needle 4F18,  Needle Jet O-0 (145 Series),  Main Jet 70 (4/042),  Air Jet 2.5,  Slide Cutaway 3.0 (VM38/24),  Needle valve 1.5

 Mikuni VM18-144 Dimension A= 23mm ID bore, B= 67mm, C= 108mm, D= 32mm, Total Width 61mm

 This Mikuni VM18-144 carb has a built in clamp and seal for mounting over a slightly larger than 22mm diameter pipe coming out from your engine. If retro fitting in place of a spigot type carb you will need to have a pipe made with a 23mm OD and at least 15mm in length for mounting this carb with the other end matching the diameter and length of the OEM carb spigot you’re replacing.

 Unlike many motorcycle manufacturers’ purpose modified versions, these factory VM Round Slides are both 2 and 4 stroke compatible and are regarded by the factory to be the best performing version of this carburetor ever made.

 These are the most popular high performance singles carburetors in the sport of motorcycling. Mikuni’s VM Series round slide single carburetors have proven themselves as the performance standard for use in any single cylinder motorcycle and ATV applications for motocross, enduro and trail riding, to flat track racing and road racing on both 2-stroke and 4-stroke engines.

 Performance features for the Mikuni VM Series Carburetors include a large selection of bore sizes for increased fuel mixture flow to match engine modifications.  And the Mikuni VM Series offers a wide range of tuning components to allow precise fuel mixture metering in any application, at any throttle setting, under any riding conditions.

 Tuner jet kits can be purchased separately from Mikunioz for many different motorcycles as per the corresponding  options. These kits consist of the suggested jets for changing that are not matching those factory fitted in the Mikuni VM18-144, they include an extra one size up and one size down main jet for tuning the main circuit due to fuel quality variations, altitude and climate. Testing and conformation of correct main circuit jetting can only be done by physically changing jets and WOT testing.

 Warning: Richer or leaner needle jets (emulsion tubes) are not available for this carb and you need to be aware that when trying to adapt this carb to an unfamiliar engine that it may be untunable if the mid-range jetting needs changing after raising or lowering the needle to its limit  The only option in this situation will be to either linish your needle in the required area if too lean or if rich, research our 4 series needles listing with a view to trying or modifying one. This is a common practice for racers and race tuners but do be aware if not in your field of expertise we do not take returns, so for us it’s better to pre-warn you and not have a complaining customer later rather than to mislead you. Be very careful of sellers telling you otherwise unless you’ve done your home work in regards to this carb being a suitable and tunable upgrade or replacement for your engine.

 These tuner jet sets have been determined from thirty years of experience, customer feedback, plus research and development as the Australian Mikuni distributor. From time to time these may not be exactly right for every engine, usually due to changes to porting, compression or numerous other things that contribute to the requirement for additional fine tuning but as a rule our kits are spot on or a very close and useful starting point, but we give no guarantees and sorry do not release kit details or jet size information. If you have your own spec simply purchase the carb and buy any other required jets from the jet pages. This also applies to replacing jets in other MIkuni VM18’s as some items may not match and fit.

 Keep in mind that these are suggested specs, and all tuning procedures, as found in our Tuning Tips section must be adhered to for the confirmation of any supplied jet’s compatibility with your engine.

Additional Information:

Please Note: Other than exact replacement OEM carburetors, all Mikuni Aftermarket Carburetors and Tuning Components are sold “As Is” for Off Road / Racing Use Only and are not intended or approved for use on vehicles operated on Public Roads or in locations where applicable engine tampering and anti-pollution laws apply.

 Australian Shipping Information:

All shipping within Australia is via Australia Post only.

Please note that we are located at Townsville North QLD and that all standard shipping “Free Freight” travels by train from us all the way down the East Coast as far as Victoria. EBay freight times are estimates only and do not take in to account our location. We have express options available for all our products also. The freight times around Australia are as follows-

Standard or eBay “Free Freight”

Townsville to Brisbane 3 days, Townsville to North/Just South and West is usually 1-2 days,

NSW ACT & VIC 4-6 days, TAS & SA 4-8 days, WA & NT 8-12 days.

Express Freight

Anywhere in QLD except some rural areas is next day delivery. NSW ACT & VIC 2 days, TAS & SA 2-3 days, WA & NT 3-4 days.

Please note that weather events such as flooding, cyclones and other natural disasters etc will delay any ground freight. This is entirely out of our control if this occurs.

 International Shipping Information:

All international shipping is done through Australia Post Express Courier EMS service.

The international service we use is generally 4-5 Business days for delivery but can be shorter or longer.

 All international buyers are responsible for the payment of their domestic customs duties and taxes charged on imported goods. The duty-free threshold and duty/taxes payable rates differ from one country to another and we strongly advise you check your liability before ordering if unsure. Please check your tracking on all international shipments within 7 days to follow their progress and determine if it is being held by your local customs dept. or on their behalf by the Postal Service, who you will need to contact using the provided tracking number.

 As per the eBay terms and conditions, WE ARE NOT RESPONSIBLE AS A SELLER FOR YOUR COUNTRIES IMPORT DUTIES OR TAXES, WE HAVE NOT NOR WILL WE EVER PAY YOUR IMPORT DUTIES OR TAXES, OR REFUND ANYONE FOR THEM AND THEY ARE DEFINITELY NOT INCLUDED IN THE ITEM PRICE! PLEASE CHECK YOUR COSTS BEFORE MAKING THE PURCHASE! THIS IS JUST PLAIN OLD COMMON SENSE.

 Please also note that international parcels HAVE to be signed for and all parcels whether domestic or international are fully insured.

 Returns and Refunds:

Our business Warranty or Return period is 7 days only. We do accept eBay’s 30 day return policy but please read all the information below carefully before making your purchase.

THE FOLLOWING INFORMATION IS FINAL.

Here at Mikuni OZ we do offer refunds and returns but there are strict procedures for this.

All carburetor kits that need to be returned for refund or exchange MUST be returned in the exact same way they left the warehouse. All Carburetors & Carby kits that have been opened WILL BE thoroughly stripped and inspected, in the case of any fuel being added, greases or lubricants, tampering or any form of damage to the carburetor there will be ABSOLUTELY NO refund and the kit will be returned to you at your expense! THIS IS FINAL AND NO OTHER EXCEPTIONS!

Absolutely all returns for any reason will be charged a 10% restocking fee whether it has been opened or not before it was returned and the freight for us to send you the kit originally will be deducted also before your refund is issued.