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PWK38 Carburetor

Original price $169.89 - Original price $169.89
Original price
$169.89 - $169.89
Current price $169.89

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PWK38 Carburetor is designed to improve vehicles performance and achieve excellent results in various off-road races. With a half-moon shaped slide, the throttle response becomes more sensitive. a mid to high speed refueling device is built-in for an aggressive power boost.

Aluminum alloy with anodic oxidation treatment on the surface, which greatly improves the corrosion resistance, wear resistance, insulation, heat resistance and hardness of the carburetor.

The Nibbi Racing PWK carburetor pro version is a perfect solution for improving vehicle performance.


  • Color: Black
  • Material: Aluminum alloy
  • Spigot: 46mm OD 38mm ID
  • Intake: 63mm OD
  • Height: 180mm
  • Width: 90mm
  • Suitable for 450cc~500cc engines


  • PWK38 Carburetor *1
  • Main Jet #138*1 #132*1 #130*1
  • Pilot Jet #35*1
  • Stickers *2
  • Instructions *1
  • Packaging Box *1

Customer Reviews

Based on 2 reviews
Reviewer avatar
Anthony Verna
PWK38 on a rm250 fully built

Loved it fixed all my issues With my bike. If you’re looking for a stock carb fix this is it. Just use your stock jets and needle not the ones supplied and you’ll be good as new. I put it on and it ran lean so just use your stock rated stuff and go off from there. Fixed my throttle response and idling issues so I love it ever since. The power jet valve is awsome. You just have to rev it when it’s warming up to prime it and take off and adjust more fuel to go faster.


Junk, runs way to lean

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PWK38 Carburetor

PWK38 Carburetor