SKU: 3470425639

TB KLX140 Big Bore Kit, Mikuni VM26, & Carb Kit – All KLX140s

$179.10 $199.00
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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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Description

TB KLX140 Big Bore Kit, Mikuni VM26, & Carb Kit – All KLX140sTB KLX140 Big Bore Kit, Mikuni VM26, & Carb Kit All KLX140s TBparts 170cc Bore Kit with the our Mikuni VM26 performance carb kit. These parts work great together for an unmatched performance increase. Starting with the complete big bore kit you get a lightweight high compression piston that is 5mm over stock making close to 50% more power. Add the 6mm larger VM26 carburetor (that utilizes the stock air box) and the bike will not only start up and idle

 

TB KLX140 Big Bore Kit, Mikuni VM26, & Carb Kit – All KLX140s

TBparts 170cc Bore Kit with the our Mikuni VM26 performance carb kit. These parts work great together for an unmatched performance increase. Starting with the complete big bore kit you get a lightweight high compression piston that is 5mm over stock making close to 50% more power. Add the 6mm larger VM26 carburetor (that utilizes the stock air box) and the bike will not only start up and idle better but it also feeds the engine more air and fuel to make more power through the entire powerband. This is one of the best, if not the best kit you can run on your KLX140 to reliably wake it up without breaking the bank. Also using the stock camshaft keeps this engines smooth running characteristics that are great for trails! We stock replacements for everything in this kit and jets for the carb. Not to mention we are continuing to grow our performance and replacement KLX140 parts lineup!

Note: 2025+ KLX140s require case boring to fit. Our cylinder skirt is 65.95mm 2025 cases are only 65.4mm wide.

Kit features:

  • Huge power gains at the best price!
  • Aluminum cylinder with steel sleeve (63mm)
  • High compression 63mm piston with rings, pin, & clips (Safe on 91+ Octane Pump Fuel) (Note: The arrow on the piston marks the intake exhaust flow/valve relief)
  • Top end gasket kit
  • Genuine Mikuni VM26mm Performance Carb (Not a cheap Chinese copy carb)
  • Intake Kit port matched to the VM26 and stock cylinder head
  • Main Jet kit (Stock Main Jet size is a #190 – Extra jets sizes 140, 145, 150, 155 (x 2), 160, 165 (x 2), 170, 175 (x 2), 180, & 185.)
  • Extended Throttle Cable for use with the stock bars and throttle or tall bars.

This kit does not require boring of the case – simply bolt on and go! There are no installation instructions, but if you can replace your piston, you can install this kit. If you don’t have any experience working on your engine, we highly recommend having a professional technician install this kit or, at a minimum, purchasing the shop manual for your bike available from your local Kawasaki dealer. The parts are installed in the same manner as the OEM parts.

Installation note – KLX140 camshaft bolts are reverse threaded, turn them right/clockwise to loosen/remove. A good jet starting point is the factory #22.5 Pilot and #180 main with the stock pipe.

This kit includes , TBW1544, TBW1545, TBW1539, TBW1546, TBW0399, TBW1353

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 3470425639

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4.1 ★★★★★
Based on 20 reviews
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Verified Purchase
Jenniffer
Houston, US
★★★★★ 5
Cómodo
Color: Grey, Size: Single
Versatil y cómodo, me gusta que trae su bolsa para guardar.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
L
Verified Purchase
Lea A Bramlett
Battle Creek, US
★★★★★ 5
Cooling
Color: Dark Gray Pinstripe, Size: King(108"x90")
Very lightweight & cooling!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
G
Gabby
West Palm Beach, US
★★★★★ 5
Cool, lightweight, and surprisingly comfortable!
I absolutely love this cooling comforter! The first thing I noticed is how lightweight it is. It comes in at just over 3 pounds, so it’s not thick or bulky at all, which I really appreciate. It feels easy to move around and doesn’t weigh you down while you’re sleeping. I chose the queen size in dark gray. It’s reversible, which is such a nice bonus. One side has a simple white stripe pattern that gives it a little personality, and the other side is a solid gray. The solid gray side is the cooling side, and oh my goodness, it feels so silky and smooth to the touch. That cool-to-the-touch feeling is really noticeable when you first get under it. I didn’t have any issues with it sliding off the bed, but I’ll mention that I don’t toss and turn a lot at night, so that may be part of it. If you’re someone who moves around more, your experience might be a little different. As far as washing goes, I did notice a small inconsistency. The product description recommends hanging it to dry, but the tag on the comforter says it can be machine washed and dried. I’m going to go ahead and follow the tag instructions and tumble dry it. I’ll definitely come back and update if I notice any issues after machine drying it. I live in the South and right now our weather is actually pretty mild so it’s a little hard to say just how much of the cooling effect is from the blanket versus the temperature in the house. That said, I do feel like it’s helping. I haven’t been waking up hot and the fabric itself definitely feels cool and breathable so I’m excited to see how it performs when the real heat kicks in. I’m also really pleased with the overall quality. The stitching looks clean, there are no loose threads and everything feels well made and thoughtfully put together. It gives me confidence that it will hold up nicely over time. This doesn’t affect my rating, but I do wish there were more color or pattern options to choose from. It would be fun to have a few more styles, especially since it’s such a nice-looking comforter. 5 stars for its lightweight feel, silky cooling fabric, and solid, well-made construction.
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Reviewed in the United States on April 9, 2026
A
Air-cooled SF
Dallas, US
★★★★★ 5
This is a great blanket for those who prefer to be cool all night.
This is a great blanket for those who prefer to be slightly cooler all night. I have been using this for almost two months now. It's been difficult to figure out how to explain it's use. Ultimately I have figured out that it acts like a blanket, insulating and keeping you warm, however, wherever the blanket is actually resting on your skin stays cool. It took me a while to figure it out. How does an insulating blanket cool you? I'm not sure how the material actually works, but that is what it does, at least for slightly cool interior weather with a bit of humidity. I imagine in the desert it may work differently. I would say nights when a sheet may be too cold or thin, and a blanket way too hot, this is the in between. The material itself is soft and almost silky. It is made well, has a pleasant appearance on the bed, and doesn't wrinkle. So getting up in the morning it is easy to toss and make the bed. It breathes unlike a duvet cover and feather blanket, so no need to air it out so much. I have come to really love it and recommend it for anyone looking for an in between, between a sheet and comforter. I have never woken up sweating or pulling it off at night. My only experience was at first thinking I was cold but learning that I was not, only where my skin was in contact! For the quality and price, it is definitely worth giving it a try!
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Reviewed in the United States on April 25, 2026
Z
Zontar
Whiting, US
★★★★★ 5
Attractive Comforter That Will Keep Hot Sleepers Cool
The Bedsmile striped cooling comforter ice blanket for hot sleepers is amazing. It's cool and comfortable thanks to its unique structure. If you're a hot sleeper, then this comforter is definitely the one for you. This comforter gives you the comfort of a blanket, but manages to also keep you cool throughout the night. It's soft and it feels cold to the touch on one side and smooth and comforting on the other. This is because one side is made from nylon which feels cool because it's a synthetic, thermally conductive material that quickly draw heat away from your skin. My daughter is the lucky recipient of this comforter, and she loves it. It matches perfectly with the gray sheets and pillowcases she already has. I have to admit I had my doubts when I first pulled it out of the package and saw it wasn't thick like a traditional comforter, but so far it has exceeded my expectations. The design is very attractive, gray with white stripes on one side, and a solid gray on the other. It is the solid gray side that is made of nylon for that cooling effect. It’s lightweight without feeling flimsy, and it is well-stitched. This is a quality comforter made with top of the line material. It's Queen size and its measurements are true. The ad says it is "reversible" but the solid gray side is nylon and that is where you get the cooling benefits...plus, it looks so much better with the gray and white strips on top. I'm really happy with this bedspread, it looks great, it is made with quality materials, it is soft and silky and it does keep you cool and comfortable at night. If you're looking for a good nights sleep, I highly recommend this comforter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026

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