Nice Carb Kit
By Phil on March 17, 2017
Just what I need to go with my pipes. Huge difference in power! So fast!
In Stock –
Every Dynojet carburetor jet kit is designed specifically for your machine to increase engine power, smoothness and throttle response. Each kit provides optimum performance throughout the rev range for maximum power and optimum fuel economy.
PartsGiant has a variety of jet kits on hand to meet your specific riding needs.
Choose the correct kit for your needs:
Stage 1 jet kits
Ideal for motorcycle & ATVs with a stock engine using the stock airbox, air filter and stock pipe. Stage 1 kits are fully adjustable to work with well-designed aftermarket pipes as well as stock replacement air filters.
Stage 1 kits improve throttle response and driveability. In most cases, power increases of approximately 5% throughout the entire power range can be achieved with correct tuning.
Stage 2 jet kits
Suitable for machines with a stock or mildly tuned engine that have a well-designed aftermarket pipe, a modified airbox and a stock replacement air filter.
Stage 2 kits are designed for applications where individual filters cannot be installed or for applications where airbox modification improves the engine's performance. In most cases power increases of approximately 8% can be achieved with the correct tuning of your carburetor.
Stage 3 jet kits
For installation on machines with stock or mildly tuned engines using a well-designed aftermarket pipe and individual, pod-type air filters. In most cases power increases of 10-15% can be achieved. Mind you, driveability may be compromised particularly with short stroke, high-RPM motors. So long as you're keeping the revs up, this usually isn't a problem.
Stage 7 jet kits
For race only use or for special applications, like the Yamaha V Max complete induction kit. Stage 7 kits are designed to optimize jetting for a given tuning specification or racing conditions.
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Fitment is guaranteed or your money back plus free return shipping. Don't waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
By Phil on March 17, 2017
Just what I need to go with my pipes. Huge difference in power! So fast!
By Anon. on April 27, 2017
Just finished the test run and i must say I am very pleased with what I accomplished with the snorkel mod K&N air filter and this Dyno jet kit. Wow, what a difference it made. Whole new bike, definitely woke it up. Sounds awesome too. I drilled my 2 into 1 with a 7/8" key hole saw and it sounds awesome. Getting a lot of compliments. Best money I spent on it so far. Oh, by the way, I have a 06 aero 750 but it runs more like a 900 now, lol
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.
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.
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.
I am fairly mechanical but don't know about carburetors, etc. Is this something I could do myself or do I need a professional?
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.
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.
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.
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.
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 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.
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.
I have a 99 shadow vt1100 with Shorty straight pipes and a k&n air filter. Which stage is best for my application? Pipes are stock just pulled slip on mufflers off.
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.
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.
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.
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.
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.
Also, is it ok to put this stage kit into just a bone stock bike until I get the upgraded exhaust etc?
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.
By: Manuel C.
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.
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.
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.
I have a K&N high flow airr filter and a aftermarket exhaust also stage 2 hot cams camshafts drz heavy valve spring a high compression top end and pisto which kit should I use
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.
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.
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.
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.
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.
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
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.
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.
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.
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.
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.
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.
What jets should I use?
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.
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.
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.
The bike I purchased has to warm up for awhile and sounds like it wants to stall if I pull back the choke to soon. It's also hesitant when starting but once it gets going she's good to go. I suspect the previous owner never jetted the carbs when he installed Vance & Hines longshot original pipes. One of the pipes is discolored as well. Everything else is stock. I'm thinking Stage 1 kit?
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.
By: ole Gregg
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.
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.
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.