Description
Getting that custom look whilst going even faster has never been so easy, say goodbye to hard starting, hesitations and flatspots. This Mikuni TM40 pumper type carburetor, like the VM roundslide non-pump options, will fix all your old stock carb issues and look great whilst also giving you a much bigger performance improvement over the others.
This kit has been specially set up for Virago’s with gravity fuel supply to the carb. If your motorcycle still has the OEM fuel pump, please look up and purchase our alternate kit to avoid needle and seat pop off and flooding at idle.
The kit includes: A pre-jetted TM40 Mikuni Carburetor fitted with a side pull knob choke. A Mikunioz designed cast two into one manifold with an enlarged mid manifold plenum area to better facilitate the fuel mixture between the cylinders, which also eliminates the uneven plug burn issues experienced with some other manifolds. To allow for a wider manifold with better holding grip whilst still isolating the heat from the fuel delivery system, the OEM carb rubber mounting flanges are replaced with 2x shorter Mikuni heavy duty flanges designed and made for the Harley market (fitment using 3 Bond grey is recommended). A 3rd heavy duty rubber flange is supplied for the manifold to Carb connection. A throttle and push/pull cable combo as pictured (820mm Long) plus also a purpose designed USA made Pancake Filter. Hardware includes all bolts and washers. There’s also 1x brass hose tail included, for using in conjunction with the port on the carb if you still have a vacuum petcock and the other for 1100 and some other models fitted with a vacuum ignition control box which must be connected. If requiring to use one or both of the supplied tails, drill a pilot hole through the manifold at a location of your choosing, followed by a not full depth 5/32″ hole to then install the tail with some glue or Loctite.
No Air-filter support system is provided or should be needed, where if installing another heavier custom filter, the fabrication of a bracket or brackets will be required.
The jets to make this carb operate on Yamaha XV models have been fitted and there are spares for fine tuning the main jet circuit doing WOT tests. Climate, altitude and fuel density from different octane fuels all have varying effects on final fine tuning as does cam, exhaust and cylinder head porting etc. For this reason, we have included what we have found to be a range of fuels.
At Mikunioz, for the last 30 years, we have been constantly checking and where necessary upgrading our jetting specs as fuel quality changes. Regular fuel in the USA is 85 octane or 91 in their premium brands which have numerous additives and blends added (basically smells and drys like wood varnish) which results in a totally different jetting spec and product performance. This carb as supplied from the factory will never work on this bike and requires a total re-jet which is done in house at Mikunioz prior to delivery with jets to suit your location anywhere in the world.
You will instantly experience better throttle response, improved acceleration, increased horsepower and torque.
IF NOT WANTING TO PURCHASE THE KIT IN ITS ADVERTISED FORM PLEASE FOLLOW THE DIRECTIONS BELOW.
The carburetor, tuner jet kit and or what ever other components you want individually by following the directions below.
On the main menu to the left of the page, hover over the carb listing for TM Flatslide Pumper Carbs and then select TM40 carb from the drop down list. When clicking on any individual size Mikuni carb from the drop down list it will put you into a page showing not only the Mikuni carb itself but also any items relevant to that carb, being Mikuni jets, Mikuni flanges, Mikuni carb tuner kits, Mikuni cables , Mikuni throttles, Mikuni air-cleaners and a range of Mikuni carb to OEM air box adaptors etc to also suit. This also makes alternate jet selection easy for you if you have your own spec as only the type jets for that particular carb are shown.
Click on the carb itself if wanting to view the full details and or to make your purchase. Then back arrow back in the carbs main page and go into the tuner kits, which show in the sales drop down list the jetting kits we have for confirmed suitable engines for that particular carb. Again thoroughly read the tuner kit description.
If you’re comfortable with making a purchase of the carb, tuner kit any or other associated components, order it on line or otherwise please call us to further discuss your needs on 0747712677.
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 make contact with using the provided tracking number.
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.
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