Carburetor Jet Kit

I purchased this YAMAKATO 22-piece carburetor jet kit to dial in a PWK-style carb, and I’m genuinely impressed with the quality and completeness of the set. What’s included: The kit comes with 11 main jets (100–145) and 11 slow/pilot jets (32–58), which provides a wide tuning range for different elevations, temperatures, and engine setups. This makes it especially useful for anyone running aftermarket carbs or tuning modified engines. Build quality: All jets appear to be well-machined brass, with clean threads and clearly stamped size markings that are easy to read. Threads fit smoothly with no cross-threading or burrs. The pilot jets have clean, evenly drilled orifices, which is critical for consistent idle and low-throttle performance. Performance: After testing multiple jet sizes, throttle response noticeably improved, idle became more stable, and mid-range hesitation was eliminated. The sizing appears accurate, and changes between jets produced predictable, repeatable results—exactly what you want when tuning. Compatibility: Worked perfectly with PWK/Keihin-style carbs and should be compatible with Nibbi, OKO, CVK, and similar designs as listed. Fitment was spot-on with no modifications needed. Value: For the price, this is an excellent alternative to buying individual OEM jets. Having both main and slow jets in one kit saves time, money, and frustration during tuning. Cons: No storage case included, so I recommend organizing the jets in a labeled container to avoid mix-ups. Overall: This is a well-made, thoughtfully sized jet kit that delivers consistent results. Ideal for riders who tune their own carbs and want flexibility without sacrificing quality. I would absolutely purchase this again and recommend it to anyone working with PWK-style carburetors.

Perfect for what I needed and worked great

Worked awesome, perfect fit. Motorcycle runs great after changing the jets.

Main jets worked for my application ( 2006 Kawasaki Ninja ex250f) the pilot jets appear to be a replica of a differing keihin series of pilot jets than what my application requires, but I Needed main jets so it worked out. The markings on the main jets are inconsistent, some are much easier to read than others. With this pack I have plenty of sizes to try out to get my Air Fuel Ratio dialed in just right. Worth the price for the variety of sizes.

Great variety of main and pilot jets. Fit my Nibbi carb with no issues.

Good fit, pilot was just a little tall for my SSR 150 and mini 26mm carb. But still works. Bought extras so I can trash my other old ones I can't read the numbers on.

There milled (machined) the right way. As far as I can tell, I got all the pieces advertised. Some I didn't actually need for my Nibbi PE 24mm Carb. Which I bought it for, however the extra jets just leaves room for more tuning. Be sure to drain your carb as not to start the corrosive process of stale gas on these brass jets.

Did not work or fit any of my old jets they were to big are to small they said it would work and they don't so don't order them if you got xt 350

happy with these jets, fit my nibbi carb and got my mini bike running the best it ever has

Tres bon produit

Did not fit carb previously bought on Amazon