Dynojet Stage 1 & 2 Carburetor Jet Kit for Yamaha YFZ450 ATV 2004-2005

A stage 2 configuration would work best for your needs. Mind you, the 2008 Honda VT750C2 Shadow 750 Spirit jet kit comes with enough components to do both, a stage 1 or stage 2 setup, so you only need to purchase one kit to get the job done. The included instructions do a really good job of explaining exactly how to go about setting up your carbs to get the most out of your bike's new configuration.

For your particular needs, the stage 2 jet kit would be ideal.

A stage 1 jet kit will certainly do the trick for your needs. You'll find everything you need in the box along with a set of easy-to-follow instructions which will help you get things fueled correctly for your ATV.

For your 1985 Kawasaki GPz 750 and its configuration with the pod-type air filters, you'll want to use a Stage 3 jet kit.

The correct jet kit for your 2001 Suzuki Bandit 1200 would be the stage 3 version since your bike has pod filters and an aftermarket exhaust. Properly tuned, you can expect good power and throttle response on your bike!

It looks like only the Stage 1/2 kit is offered for that bike, which would be what would be recommended for use with those pipes.

According to Dynojet, they would recommend the stage 7 kit for that 2002 YZF600R with those upgrades.

The stage 1 kit would be great for that bike with those pipes.

Yes, this would be a good upgrade to get the most out of that bike with that exhaust installed.

Yes, it sounds like you need more fuel added which this jet kit would provide.

That kit for the 2002 TRX300EX would include an assortment of main jets, fuel needle, adjusting washer and needle clip.

Yes, this kit would be ideal to use in conjunction with those pipes.

Yes, the stage 1 kit would work great with those pipes and filter.

The stage 2 Banshee jet kit comes with a pair of main jets in sizes 270, 280 and 340.

In the case of the XV920 jet kit from Dynojet, it includes two sets of main jets (120 and 124 sizes), two fuel needles, adjusting washers and E-clips.

Actually, the stage 1 & 3 jet kit for the YX600 Radian would be perfect for your needs. In the stage 3 configuration, it's actually engineered for pod-type air filters and an aftermarket exhaust. And the instructions tell you exactly what's needed to get you going.

Stage one would be all you would need. Stage one is for mildly tuned machines using the stock airbox with stock or K&N filter. May also be used with a good aftermarket exhaust system. Stage two is only for machines running modified engines with modified airboxes or pod type filters.

You should not need to purchase a separate jet kit. Kuryakyn Hyperchargers for carbureted models include a range of jets to tune the Hypercharger to the bike it is being installed on. They normally include enough jets to tune for pipes and the Hypercharger being installed.

All Dynojet jet kits include detailed installation instructions as well as a break down of the contents for each kit.

Dynojet's jet kit for the 2006 Yamaha V-Star 650 is specifically engineered to work with machines equipped with a K&N YA-0085 air filter with, or without, a full exhaust system. That is to say, the correct jets and needles are included to work with the bike in either configuration. This kit would be perfect for your needs.

For a engine that's stock, or one with an aftermarket exhaust system and no other engine modifications, save for the K&N air filter you have - a stage 1 jet kit is the correct choice to tune the engine for your needs.

This 2001 KLR250 jet kit comes with main jets ranging in size from 106 to 122. In addition, you'll find an adjustable fuel needle in the kit so as to tune power as your bike needs.

Generally speaking. the stage 2 kit should be plenty for your needs as they're designed to work on machines that have a full aftermarket exhaust system with, or without, an aftermarket air cleaner.

Yes! If you were to choose the 2016 Suzuki LS650 Boulevard S40 jet kit from our fit guide, you'd receive the correct jet kit to fit your machine.

For your particular needs, a stage 1 jet kit from Dynojet will do the trick just fine. It's specifically designed for machines with mildly tuned machines using either, a stock or aftermarket air filter along with a good aftermarket exhaust system. And the Yoshimura RS-3 certainly counts as a good exhaust system!

For your particular needs, and especially if your bike has stock jetting, the stage 1 & 3 CB650C jet kit will suit your needs best. It'll certainly get you closer to the fueling requirements of your bike's configuration.

The CBR1000F jet kit is designed to work on machines with an aftermarket exhaust system. It also includes enough components to work with either, the stock filter or an aftermarket air filter. Certainly, when compared to stock jetting, it will be a great improvement. Best of all, the included instructions provide an excellent guide as to how to set up fuel delivery to get you back on the road ASAP!

For your needs, as long as you're not doing much on the intake side, such as removing the filter housing, then a stage 1 jet kit will do the job with a set of straight pipes. Generally speaking, you only need to go beyond a stage one kit if you're doing more than putting an aftermarket air filter on the intake side. That is, in addition to an exhaust, of course. So long as you're not fooling with things on the intake other than an air filter that fits the stock design, a stage one kit is good for your needs with that exhaust.

So long as the dual exhaust you have is an aftermarket full system and not the stock item and you have an aftermarket air fitler, the stage 2 kit will be suitable for your needs. In addition, the Raptor 660 Yamaha jet kit requires that you modify the intake snorkel (only requires a sharp knife) so as to increase intake performance. With the latter job done, your machine meets stage 2 requirements. Best of all, the included instructions explain exactly how to go about modifying the intake snorkel and also, how to install the components included in the jet kit.

The sputter at high-RPMs is certainly a sign of inadequate fuel delivery, so this jet will will help out with that problem. And the kit does indeed include a 138 main jet. If that's what the instructions for the muffler you have call for, then it'll probably get you pretty close to your ATV's ideal fueling requirements. There are also a few other components in the kit that you'll need to install in order to get the most out of your new LT-Z250 exhaust arrangement.

In the case of the 2002 YZF-R6, Dynojet only offers a stage 1 jet kit for that bike. The kit includes main jets or four each, in sizes ranging from 134 to 144. Fuel needs and instructions are also included in the kit. If your bike has an exhaust and/or an aftermarket air filter, in most cases, the stage 1 kit will do the trick in terms of proper fuel delivery.

Dynojet's jet kit for the 2008 Yamaha YFZ450 ATV includes main jets ranging in size from 124 all the way up to 165. That's in addition to a fuel need, pilot jet and the requisite components for installing all of those items. Also included is a set of easy-to-understand installation instructions for stage one or stage 2 applications. Those instructions explain exactly what main jet to use and where to position the fuel needle for a myriad of riding conditions All the information you need is contained in that document.

When a jet kit is offered as a stage 1 & 2, it comes with the requisite parts for handling a wider range of engine configurations. So while you're only getting one box, it comes with enough jets, needs &etc. to cover a pretty wide range of tuning options for stage 1 or stage 2 engine configurations.

The Stage 1 kit jet kit for the VT1100 Shadow Spirit would probably be a good match for your needs. It'll certainly be a lot better than stock! Though, when running straight pipes, you're going to be running the biggest jets included in the kit right from the off. Once you've got those in the carburetor, along with the other components included in the kit, you may be spot on. Of course, it's impossible to say without trying it. And if that turns out not to be enough fuel, just let us know and we'll find a bigger set of jets to fit.

The VTX1300's jet kit includes four, single main jets in sizes 185, 190, 195 and 200. In addition, you'll find a fuel needle, slide spring and adjusting washer in the kit as well. Plus, the included instructions provide an excellent explanation for a fueling starting point for a wide range of configurations.

The stage 1 jet kits are ideal for VS800GL in your bike's particular configuration. According to Dynojet, you don't need to change the main jets in order to accommodate those changes since they're not included in the kit. But rather, the included fuel needles and drill will be more than sufficient for correcting the fueling issues you're having.

Yes, absolutely. Just choose the 1996 XV750 Virago 750 from our fit guide, and we'll get the correct jet kit to fit your machine on its way to you. Stage 1 kits are ideal for any bike with any combination of stock or aftermarket 750 Virago exhaust system and stock or aftermarket Virago 750 air cleaner. The included instructions provide an excellent description of the baseline you'll need to get your bike running at its best along with useful tips to get it running perfectly. There are also a range of components included to facilitate those adjustments.

The GS500F jet kit comes with main jets in a range of 120-132 in four-size increments. The GS500F pilot jets are also included. In addition, springs, needles and instructions are also included in the kit.

The stage 1 Honda Shadow jet kit would be best for your needs. It comes with the appropriate jets and needles to work with a completely stock configuration all the way up to a bike with a full exhaust system and/or an aftermarket air intake kit. The included instructions clearly explain exactly how to configure your machine so as to work best for your specific needs.

The stage 1 Road Star 1700 jet kit from Dynojet would be ideal to serve your needs. Stage 1 kits are designed to work with machines using an aftermarket exhaust system and/or Yamaha Road Star air filter element/kit. The included instructions clearly explain a good baseline setting to start with and also provides some guidance on what changes to make based upon your bike's particular fueling needs.

For your particular needs, the Suzuki LS650 Savage 650 Stage 1 jet kit would probably get you sorted out. It would certainly be a lot better than the stock configuration wherein, you'd use the larger jets in the kit to get you up and running.

It sounds more likely that you've got carb issues in general, as opposed to jetting problems, and the Dynojet kit we have on offer probably won't do much to fix that for you since it's really designed to deliver more fuel while under way, and especially at bigger throttle openings. Your best bet would be to service the carbs in their current form before modifying fuel delivery with this, or any other jet kit we have.

For your particular needs, you should start with the Honda TRX400EX stage 2 jet kit configuration as is outlined in the instructions that come with the kit. In fact, those instructions note that the stage 2 setup is specifically designed to work on a TRX400EX with the airbox lid removed and an aftermarket exhaust system.

It sounds as though your machine has a poor seal somewhere on its KLX250S exhaust system or in the airbox. A jet kit isn't going to solve those problems. Your best bet would be to have a look at the seals throughout the exhaust system and, just as importantly - around the airbox and carburetor boot. If there are any gaps there, it'll cause gases to leak into the exhaust when you close the throttle and the bike will backfire. As for your second question, in the case of the Kawasaki KLX250S jet kit, yes - the Stage 1 & 2 kit from Dynojet includes everything you need to correctly jet a stage 1 or stage 2 set up on the KLX250S.

If it's a XR650L big bore kit that you've got on there, you should start with the largest main jets available in the stage 1 jet kit. With that, you should have a pretty good idea of which direction to go. In most cases, that'll get you within the ballpark, but without having the machine here to examine, it's really difficult to say whether or not better work could be done. The good news is that the included instructions do a pretty good job of explaining how to go about installing and configuring the jet kit on your specific machine. With that, you should have a really starting point to work from and improve upon.

For your particular needs, a VTX1300C stage 1 jet kit would do the trick just fine. They're ideally suited for machines equipped with an aftermarket exhaust and/or an intake kit. With that, you'll have everything you need to get the most out of the added components you have on your bike.

Yes, the Stage 1 V-Star jet kit would be perfect for your needs as it's specifically designed to work on machines with a stock or aftermarket air cleaner and/or exhaust system. Best of all, the included instructions do an excellent job of explaining how to get everything installed correctly the first time.

The stage 7 Yamaha V-Max kit comes with four each, of 165 and 175 sized jets. In addition, you'll find 190 pilot jets, fuel needles, manifolds, slide springs and the required tools to complete the modifications required to get the most out of a stage seven tune.

A stage 1 & 2 DR-Z400SM jet kit would do the job for your needs. These DRZ400 jet kits are an excellent match for machines with an aftermarket full exhaust system and an aftermarket air filter like the DR-Z400 K&N unit you have on there.

This VT750 Shadow 750 jet kit will help with the low speed fuel delivery, yes - but the backfiring is more of a problem with how the aftermarket Shadow 750 exhaust was installed. In many cases, backfiring is caused by a poorly assembled exhaust. Your best bet would be to examine all of the connections for the exhaust to make sure there are no gaps that could cause leaks. Furthermore, the intake is another area of concern. Make sure the entire intake manifold is bolted down securely. In this way, you can be sure there are no air leaks that would cause excess fuel to be pulled into the combustion chamber to cause backfiring. Once you've done this, if the bike still feels like it isn't fueling properly, then it will be time to adjust fueling with this jet kit.

Dynojet's Stage 2 jet kit for the Yamaha Raptor 660 comes with main jets ranging in size from 136 to 150. Fuel needles, slide and needle springs are also included in the box. The stage 2 Raptor 660 jet kit is best for machines with an aftermarket exhaust and either, a modified airbox or pod-type 660 air filter.

Yes, this GSX750F Katana Stage 1 jet kit includes enough parts to service all four carburetors on your machine. Specifically, the kit includes: 4 Main Jets DJ106 4 Main Jets DJ110 4 Main Jets DJ114 4 Main Jets DJ118 4 Main Jets DJ122 4 Fuel Needles DNO255 4 E-clips DE0001 4 Adjusting Washers DW0001 4 Slide Springs DSP026 4 Needle Springs DSP77 1 Plug Drill DD 5/32 1 Screw DS0001

Stage 1 Suzuki Volusia jet kits are recommended to work with machines that are either completely stock, or have an aftermarket exhaust and/or air filter/intake kit installed. Mind you, the sputtering may be the result of an air leak on the air cleaner or the exhaust, so make sure everything is on there tight before you make any fueling adjustments. In this way, you can be assured of the best possible benefit with the installation of this jet kit.

The stage 1 kit from Dynojet to fit the 1978 GS1000 comes with four each, of main jets in sizes ranging from 138 to 142, but it does not include pilot jets as those are not required to get fueling correct the typical stage 1 application.

A Dynojet stage 1 jet kit is perfect for exhaust systems that are going to be run with, or without, the baffles installed. Everything you need to properly fuel your bike will be included in the kit.

2005 XL883 Custom jet kit includes jets ranging in size from 150 up to 200, a fuel needle, slide spring, emulsion tube and a drill bit to complete the installation.

Back pressure isn't so much of an issue when removing baffles, or installing a different exhaust for that matter. It's an excessively lean fuel mixture that causes problems. If your bike is already running well with the exhaust that's currently installed, then you'll probably only need to make an adjustment to the pilot jet or maybe change the circlip's position on the fuel needle. The installation of a new jet kit isn't required. It's when you're going from a stock exhaust to a complete exhaust system and/or air cleaner kit that you really need to make fueling adjustments, otherwise - tweaking the carb as it is should be all you need to do.

In your case, the Stage 1 & 2 Dynojet jet kit for the Suzuki LT-Z400 would be best for your needs. It comes with main jets ranging in size from 118 all the way up to 170. That'll be more than enough to suffice for your needs since Stage 2 components work well with airbox modifications, which includes aftermarket Suzuki cams.

If you're going from a stock exhaust and air filter setup, then yes - we highly recommend that you bike be re-jetted to account for the improved air flow in and out of the engine. In this way, you can be assure the best possible throttle response and engine performance. For your needs, we recommend a V-Star 1100 Stage 1 kit as it's specifically designed to work with an aftermarket exhaust and K&N air filter. The included instructions do an excellent job of explaining a baseline setup that'll get you well within the ballpark of ideal Yamaha 1100 jetting.

The stage 1 Suzuki S40 jet kit from Dynojet would work well for your bike. Generally speaking, stage 1 kits are ideal for machines that have either, a stock engine and exhaust, or a Suzuki Boulevard aftermarket exhaust and modified S40 air filter.

The stage 2 kit would be ideal for your needs, but only after you install an aftermarket exhaust. Installing a stage 2 jet kit on your bike with a completely stock intake and exhaust is not recommended since it'll be running far too rich. Your best bet would be to wait until you get all of the work done before re-jetting the bike.

In the case of a 1996 Honda CBR600 F3 jet kit, Dynojet includes main jets ranging from 130 up to 140. With those, you should have enough adjustment range to get the proper amount of fuel delivered to the combustion chamber.

Dynojet's jet kits for the Shadow 750 Aero and the Shadow 750 Spirit are significantly different. Due to this fact, they're not interchangeable. As you've noticed they only produce jet kits for 2001-2006 model year machines. If it's a newer bike that you have, check out Cobra's Carburetor Jet Kit for the Shadow 705 Spirit. They build jet kits that'll fit 2007-2009 model year machines.

The DR-Z400SM jet kit comes with main jets ranging in size from 132 to 160. In addition, you get a fuel needle, needle spring and all of the other required parts to get the best possible fuel delivery you need for your DR-Z400SM. Best of all, the included Dynojet jet kit instructions explain exactly how to get everything installed and tuned for your specific riding needs.

It really depends on how your machine is configured as to what stage of jet kit your bike needs. If your bike is mostly stock with an aftermarket air filter and/or exhaust system, the stage 1 jet kit will do the job just fine. If your bike's engine has had its internals modified (eg. ported and polished) along with a full exhaust system and a modified air filter/airbox - then you'd want to use a Stage 2 kit. Should your bike be used almost exclusively for racing purposes but is configured like the Stage 2 example, then the Stage 3 kit is your best bit. We say racing purposes due to the fact that the Stage 3 kits are designed to work best in the upper engine RPM range - something that's not too practical on the street. Stage 7 jet kits are for all-out engine builds on a bike that's to be used for racing only.

A Honda Shadow VT1100 Dynojet Stage 1 jet kit is best suited for machines equipped with a stock or aftermarket air filter and/or a stock/aftermarket exhaust system. From what you've indicated, that's exactly where you bike needs.

An RF900R stage 1 jet kit is all that's required to deliver proper fueling on your bike. This holds true whether or not you're using the OEM exhaust or if you have an aftermarket RF900R exhaust system on there. Stage 1 kits are best setting for machines that OE or aftermarket exhausts with either a stock or aftermarket RF900R air filter. The included jet kit instructions do an excellent job of explaining how to install the items and also, how to get the best possible engine performance as well. Everything you need is included in one box.

The kit comes with three different main jet sizes to accommodate stage 3 tuning needs. There are four each, of 124, 128 and 132 sized main jets. What's more is that the included instructions do an excellent job of explaining which ones to use for various exhaust configurations.

Yes, absolutely! Dynojet State 1 jet kits for the Harley Sportster 1200 are designed to work well with the stock or aftermarket air cleaners and exhausts. Everything you need to get your bike set up to run at maximum engine power and the best possible throttle response is included in the kit. Best of all, the included Dynojet tuning instructions provide an excellent baseline as well as clearly describe how to tweak fueling to get the most out of your bike.

The stage 1 jet kits from Dynojet are perfect for your Suzuki Katana 600. They're specifically designed to work with the stock or K&N air filter and a good aftermarket exhaust system. The included instructions provide excellent guidance on getting a good baseline setup and also have information on fine-tuning your Katana's carburetors in order to get the most out of your bike's set up.

Unless you've recently installed an aftermarket exhaust or put a new air intake on the bike, you shouldn't need to re-jet the carburetor or otherwise adjust fueling. Most likely, the issue would be a loose head pipe or muffler connection which then causes the bike to run lean. This, in turn, would lead to the sputtering and backfiring that you've noticed. Have a look at your bike's exhaust system and check for loose bolts and fittings, In addition, check out the exhaust ports and make sure those gaskets are in good shape. Once you've tidied all of that up, you should be all set.

Dynojet's jet kit to fit all Suzuki GS500E models come with two each, 118, 122, 128 and 134 main jets. In addition, there's also a pair of fuel needles, slide orifices, a drill bit and a tap to finish the job.

It sounds as though you do have a jetting issue. This would be especially true if your bike hasn't had its carburetor modified to account for the better exhaust flow. The fact that the bike runs well at higher RPMs is due to the fact that emissions tests are typically done at 1/3 full throttle. Consequently, the OEMs don't have to do much to work with full-throttle power as it's not measured, so the bike runs fine when you really get the engine spinning. As for ease of installation, since the VTX1300 has only one carburetor, there's not much to it - just remove the tank, pull the carb off and follow the included installation instructions to get your bike dialed in. If you have simple hand tools, it'll take only one evening of work in the garage.

In a nutshell, you need bigger main jets. The kit Dynojet jet kit we have to fit the CB900C includes the proper main jets, needles &etc. to suit stage 1 and stage 3 setups. If it's only the exhaust you have on your bike, the stage 1 components should be enough to get the job done.

Dynojet jet kits contain only the needles and jets needed to make the specified fueling adjustments for the stage of modification selected. There are no gaskets for rebuilding the carburetor included in these kits. Should you require carburetor gaskets, simply search our store for "carburetor rebuild kit" and you'll find a giant selection of carburetor gaskets and other components to fully service your carburetor.

Yes, each kit is designed to service a complete set of carbs for the model you select. If your bike or ATV has four carbs on it in stock configuration, the kit you order will come with parts to service all four of those carburetors.