Carburetors, Jet Kits, Air Filters, Fuel Filters, EFI Control Modules
Basic Carburetors Tech Talk: https://youtu.be/KGR6-RsXVKg
This is a complete high-performance intake kit for the DR650 that includes our famous TM40 carburetor kit and a K&N air filter with ProCycle wrap.
Better throttle response. More power over a much wider range.
Kit includes pre-jetted genuine Mikuni TM36 Pumper carb and push/pull throttle cables. Everything is included to mount this carb to your bike. Well suited for stock to mildly modified motors.
If you are converting a Keihin FCR-MX 39 to fit on your DR, you need to start here. This 6061 T6 aluminum adapter bonds to the airbox side of the carb so it will easily fit the DR.
Not for the stock carburetor Fits FCR-MX conversions only.
Quality air cutoff valve replacement kit contains parts necessary for a complete rebuild.
The Mikuni TM42-6 HSR flows 17CFM more than the TM40-6 and incorporates many upgraded features such as a roller-bearing slide.
All this means going even faster has never been so easy, say goodbye to hard starting, hesitations and flat spots.
Softer return spring for your TM40 carburetor.
This replaces the stock return spring that comes with the TM40 carburetor creating a 25% lighter throttle feel.
These Mikuni carburetors are correctly sized and easily fitted to your Honda XR600 and XR650L stock motor mounting flange after removing the locator tags and also match the air box when using the silver anodized air-box adapter. This adapter is fitted prior to delivery when purchasing complete kits. For this Mikuni carburetor to operate correctly the motorcycles air box must be opened up to allow more air flow in. Using a hole saw, a 45mm diameter hole will be sufficient for a Suzuki DR650 but some Honda’s require way more. The best process is to keep opening up the air-box until no more improvement is noticed and you will be surprised at the difference. The kit also comes with throttle cables and a 1/4 turn quick action throttle which must be lubed before fitment. The carb comes with a couple of Honda specific adjustments made and pre jetted for your engine. A specially made size 30 pump nozzle is fitted as the accelerator pump circuit on TM42 carbs will not work properly on Honda’s or Kawasaki’s without it.
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 jets to allow you to tune to most variables.
This carb fits with most aftermarket large capacity tanks. Some larger capacity tanks do not allow the fitment of this carb without modification. A competent person can easily heat and depress the contact area around the throttle mechanism allowing for clearance on problem tanks. Polyethylene tanks start their life as lump of poly that when melted evenly spreads itself around a rotating mold, to later carefully heat with a heat gun any section of a tank and change the shape has no effect on the integrity of the poly itself unless pushed too far, thinning it. We recommend having this professionally done for the reason some people may neglect to properly remove all the fuel from an existing tank or if not competent may make a mess of it.
Want an amazing increase in throttle response? More power over a much wider range? The Mikuni TM40 does all of that plus runs smoother at lower RPMs and pulls taller gearing with ease.
Our complete kit comes with alloy adapter rings bonded to the genuine TM40 carburetor body for a firm reliable fit in the stock air boots. We also include new low friction cables, an extended fuel screw, complete instructions along with a wide range of extra jetting for fine tuning. It even has a vacuum port for the stock fuel petcock.
The carburetor comes pre-jetted for the typical mods: performance pipe and modified air box, or we can set it up for your particular bike before we ship it out.
Instead of the tough to reach choke knob, all TM40's come with a remote choke and bracket. This makes it easier to reach the knob, especially if you have an oversize tank.
Replacement Air Cutoff valve from Yamaha
Kit Includes:
Strip out the bowl screws on your KLR? Carb top screws get rusty? Here is a set of 4 allen screws and lock washers for the bowl and 4 allens and flat washers for the vacuum top.
Extended float bowl screws from Wirth Machine for your TM40 that use 1/4" size wrench to loosen. Allowing easy access to your jets and float without having to remove the carburetor from the bike. Sold in a 4 pack. Stainless steel threads.
Extended float bowl screws from Wirth Machine for your OEM BST carburetor that use 5/6" or 8mm size wrench to loosen. Allowing easy access to your jets and float without having to remove the carburetor from the bike. Sold in a 2 pack. Stainless steel threads.
Replacement socket head (Allen) screws in case you strip out the stock JIS heads on your TM40 bowl. The originals can be stripped out when doing any tuning or carburetor maintenance. Sold in a pack of four, all for the bowl.
Replacement socket head (Allen) screws for the OEM BST40 Carburetor. The factory screws that hold the top cap and float bowl on the stock carburetor are very easily damaged. The originals are usually installed unbelievably tight from the factory. It is common to ruin the stock screws when installing a jet kit or doing any other carburetor maintenance. Sold in a pack of four. Two for the cap and two for the float bowl.
All the advantages of a flatslide pumper carburetor at a much friendlier price than a Keihin FCR.
Our complete genuine Mikuni TM40 pumper carburetor kit comes with alloy adapter rings bonded to the carburetor body for a firm reliable fit in the stock air boots. We also include a remote mounted choke knob, complete instructions along with a wide range of main jets and pilot jets for fine tuning or to accommodate bikes with extensive modifications.
All the advantages of a flatslide pumper carburetor at a much friendlier price than a Keihin FCR.
Our complete genuine Mikuni TM40 pumper carburetor kit comes with alloy adapter rings bonded to the carburetor body for a firm reliable fit in the stock air boots. We also include new 3" longer than stock throttle cables, a remote mounted choke knob, complete instructions along with a wide range of main jets and pilot jets for fine tuning or to accommodate bikes with extensive modifications.
