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Air and Fuel› Carburetors and Components

JD Jetting

Keihin PWK38 AirStriker Carburetor Kit

$444.00 $368.55 Save $75.45

SKU: JDKH08

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The JD Jetting JDKH08 is a Keihin PWK38 AirStriker carburetor kit designed for 125-500cc 2-stroke engines. This kit offers a significant improvement over standard carburetors. It includes the Keihin PWK38 AirStriker carburetor and a JD Jetting jetting kit with multi-taper needles, a needle clip, main jets, a pilot jet, and clear instructions.
Show original supplier description
The JD Jetting JDKH08 is a Keihin PWK38 AirStriker carburetor kit designed to provide a substantial upgrade for 125-500cc 2-stroke engines. This comprehensive package includes the Keihin PWK38 AirStriker carburetor itself, along with a specifically tailored JD Jetting jetting kit. The kit contains multiple multi-taper needles, a needle clip, several main jets, a pilot jet, and detailed instructions to facilitate installation and tuning. This carburetor measures 171.6mm from top to bottom and 92mm from front to back. JD Jetting emphasizes the importance of measuring your existing setup to ensure fitment before ordering. For applications requiring a smaller physical footprint while still delivering 38mm performance, JD Jetting also offers the JDKH38 model. This carburetor kit is presented as a great value, especially when compared to competitive options that can cost twice as much or more. It is ready for racing right out of the box, offering an immediate performance enhancement.
Vehicle Symptoms
  • bogging when throttle is snapped open
  • hard starting and rough idle after warm-up
  • top end sputters under load
  • stock carb inconsistent jetting across temps
  • lack of low-end grunt on 250 2-stroke
Relevant Conversations
  • PWK38 AirStriker vs stock Keihin PWK for YZ125 worth the upgrade?
  • JD Jetting PWK38 kit jetting for KTM 250SX at sea level
  • bike bogs when snapping throttle after top end rebuild
  • best carburetor upgrade for CR250 woods riding
  • PWK38 AirStriker vs Mikuni TMX38 which is better for MX?
  • does JDKH08 fit KX500 with VForce3 reeds?
  • what pilot and main jet for PWK38 at 6000ft elevation?
  • PWK38 AirStriker installation tips and throttle cable routing
  • no OBD codes but 2 stroke sputters at wide open throttle
  • where to buy JD Jetting PWK38 AirStriker carburetor kit cheap

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandJD Jetting
Part NumberJDKH08
CategoryAir and Fuel
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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