very good item for carburetor adjustment for any motorcycles. price is feel like little expensive, because you need to buy each set for each carburetor. but they do a good job. reliable and good quality.
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- Instock
29.65 USD (4,400 JPY)
Webike Point: +44 pt
(0.29 USD)
Delivery Information
In Stock : 4 left, Ships within 24 hours.
Estimated arrival date around
Product detail
Quantity: For 1 carburetor (for 1 cylinder)
[Set components]
Needle Valve
Idle screw (air screw)
Float Chamber Gasket
Pilot jet: 3 sizes
Main jet:6 sizes
Jet Needle: 4 sizes
etc.
**Components vary by product.Please refer to the product image.
*There may be changes in product specifications due to the manufacturer's reasons..
Here's a list of motorcycle good mood diagnostics to help you troubleshoot (manufacturer's website).
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Keyster's Carburetor Tune-Up Kit includes almost all the parts needed to repair or adjust your carburetor.Needle valves, idle screws (air screws), float chamber gaskets, etc., but the most distinctive feature is the wide variety of fuel control parts.There are 3 sizes of pilot jets, 6 sizes of main jets and 4 sizes of jet needles.
The rubber needle valve is made of "AA Needle" which is the super needle that won the invention prize.Its amazing performance far surpasses that of stock products.
Conventional jet sets for tune-up are distributed equally in size.For example, it skips by 5 or 10.But the jetsets in the fuel tune kit are not evenly spaced.In combination with the jet needle, the size is designed to change the air-fuel ratio effectively and precisely.
The first use of the fuel tune kit is for troubleshooting.For use to repair motorcycles with fuel supply problems.
The basic direction is that the pilot jet, the jet needle and the main jet should all be moved in the L direction to increase the A / F ratio, and all of them should be moved in the R direction to decrease the A / F ratio.However, the combination of L, S, and R will be different depending on how you want to change the range of low, medium, and high speed.This is one of the best parts of carburetor tuning.
Another application of the fuel tuning kit is to tune up the motorcycle (performance improvement).
However, the carburetor is not a device that generates power by itself, so no matter how much you adjust the carburetor, the effect of tuning up is not expected.Please note that the performance will be improved by adjusting the carburetor to fit the engine and the parts of the engine front and rear when they are replaced and tuned up.For example, if you try to improve the performance of the engine by changing the air filter to increase the amount of air passage or the exhaust to reduce the exhaust resistance, the mixture conditions required by the engine will naturally be different.This is where carburetor adjustment comes in.This can be easily met with a fuel adjustment kit.
Points of Attention
* If there may be an instruction manual included, it will be written in Japanese.
NEW ARRIVALS IN USED PARTS FOR
NEW ARRIVALS IN USED PARTS FOR
NEW ARRIVALS IN USED PARTS FOR
New arrivals in used
New arrivals in used
Customer Reviews
Reviews with image
Fits:YAMAHA RZ350 81 4U0
Installed on: YAMAHA RZ350
Fits:YAMAHA RZ350 81 4U0
Jul 27, 2017
It is indispensable for out of print cars
All the Parts inside Carburetor are complete and satisfied with the quality well.
As a personal opinion I would like you to put out the Throttle spring which was discontinued.
Helpful?
Fits:YAMAHA RZ350 81 4U0
Mar 28, 2017
The accuracy of Needle is very bad and Gasoline is dripping state. If Needle is alive, we recommend not using it but using OEM Parts Number In my case I bought a new OEM Parts Number part
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Fits:YAMAHA TW200 2JL 4CS1-6 available
Installed on: YAMAHA TW200
Feb 26, 2024
KEYSTER Carburetor Fuel Adjustment Kit Is AWESOME
Yesterday I got my package from webike that would be Keyster Carburetor Fuel Adjustment Kit .This is very special product because it has includes everything anyone wanted to rebuild TDUB early modle carb.Very much idendical to the OEM quality .OEM Parts bit expensive but this kit has everything.According to the OEM PRICES THIS FUEL ADJUSTMENT KIT WAY MORE CHEAPER..I'm currently running oem 114 mainjet and 40 pilot jet and Pilot screw/air screw 1.5 turns from fully seated.according to the spark plug reading (chocalate brown color) that was a great choice.after I got this fuel adjustment kit I wanna try 112 mainjet and 110 main jet with the 37 pilot jet (lean condition).The kit comes with a paper sheet with everything written on it, so even though the sentences are in Japanese, the diagrams on the carb are easy to understand, even if you don't know Japanese..If anyone want to know the english version of this paper ,can download the english version from the keyster website.I would say great investment for the bike and very easy to installed.and will be a great experiment.WEBIKE Shop is one of the best shop for buy finest quality and rare products for cheap prices.webike shop offers great service.so anyone can buy product with confident. webike packaging is awesome.they secure the items inside the box with the bubble (doesn't matter the product size,they do it anyway ) wrap for further protection.I highly recommended.WEBIKE.. awesome people and 5star shop. .Thank You !!
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Fits:SUZUKI DF200 DJEBEL SH42A
Jul 28, 2022
High cost performance, and fun setting... maybe!
I used it to wake up a friend of mine's DF200 DJEBEL, 4 years old!
Fortunately, the fuel in the carburetor and tank had been completely drained when the car was put into hibernation, so there was no internal corrosion.
I've gone to a lot of trouble to make sure that the key Star Quantity:Since we had purchased a set, we replaced the parts that could be changed, and the carburetor body was thoroughly inspected and cleaned.
As a result, the Engine started up perfectly.
Needle valve set (Float valveassy) +&alpha. when bought together with OEM Parts;
You can only buy about PJ, MJ, and JN, which can be swung even thicker or thinner, are the various Quantities:It is also nice to be Set.
In this case, we assembled the OEM's number for a full normal body.
The machining accuracy is as good as its reputation.
The Brand logo is cute. (I think Sticker used to be bundled …)
The Jet engraving is Smaller than OEM, but easy to read. I can't read it with my naked eye anymore, so I'm sweating with my phone zoomed in Large.
⇒ Spec. changes due to year, etc.? You should check the number of Jet you removed.
The material or finish of the Main nozzle and Needle is different from OEMMikuni. If you don't mind, it's OK.
The filter design on the Needle Valve is a bit different.
＜Brothers
I used to be a mechanic for a motorcycle dealer and have done carburetor OH countless times.
Let me speak a bit from that experience. ↓
One example of many DIYcarburetor cleaning failures is Case, which completes the Overhaul with only Jet-related cleaning.
In fact, there are not only the Jet, but also the Idol port, the main nozzle, the Starter system fuel passage, the small passages around the air screw or Pilot screw, the O-ring, the diaphragm of the air cut valve, and many other small and important passages. By understanding the structure of the carburetor and cleaning each passage completely, a perfect carburetor can be made.
It is also important to check the oil level. If the oil level is low, it will be thin like when you are about to run out of gas, and if the oil level is high, it will be thick, increasing the risk of overflow.
I think it's fun and good to repeat the experience over and over again to improve your skills, but it's not a good idea.
The fuel system is deep and difficult, so if you are not confident about the carburetor's Overflow, it may be better to consult a trusted Shop.
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