2Bros Parts

CARBURETOR REPAIR KIT 1998-2007 KTM640 LC4 MIKUNI CV BST40

$83.46

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Delivery to United States 5–8 business days

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Mikuni CV BST40 carburetor repair kit including plunger vacuum diaphragm. Manufactured from high-tech materials to exacting standards, meets or exceeds OEM quality. Direct OEM replacement for worn or damaged carb parts. Includes Throttle Valve, Float 6.1 Gram, Diaphragm for Throttle Valve, Needle Valve 2.8mm, Gasket Set, and Idling Jet. Cross-reference OEM part numbers: 58431035000, 58431009000, 58431028000, 58431020000, 58431099000, 58431007047, 58431007045. Visual inspection of product image recommended before ordering. Easy to install, professional installation recommended if uncertain.

Specifications
SKU
27-4701.AA2
Brand
No Brand
Availability
In Stock (2)

Fitments (10)

MakeModelYear
KTM640 LC41998
KTM640 LC41999
KTM640 LC42000
KTM640 LC42001
KTM640 LC42002
KTM640 LC42003
KTM640 LC42004
KTM640 LC42005
KTM640 LC42006
KTM640 LC42007
SKU
27-4701.AA2
Brand
No Brand
Availability
In Stock (2)
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Carburetor Repair Kit for Mikuni CV BST40

Restore the optimal performance and reliability of your motorcycle's carburetor with this comprehensive Mikuni CV BST40 carburetor repair kit. Specifically designed for the KTM 640 LC4 series, this kit includes essential components like the plunger vacuum diaphragm, ensuring a precise fit and function. Each part is manufactured to exacting standards, making this kit a direct OEM replacement for worn or damaged carburetor parts. Revitalize your engine and enjoy a smoother, more responsive ride.

Key Features:

  • Includes vital components such as the plunger vacuum diaphragm.
  • Manufactured from high-tech materials for dependable performance.
  • Built to exacting standards for confident engine rebuilds.
  • Meets or exceeds OEM quality specifications.
  • Designed as a direct OEM replacement part.
  • Easy to install; professional installation is recommended if you are uncertain.

Component Cross-References (OEM Part Numbers):

  • Throttle Valve: 58431035000
  • Float 6.1 Gram Mikuni: 58431009000
  • Diaphragm for Throttle Valve: 58431028000
  • Needle Valve 2.8mm: 58431020000
  • Gasket Set Mikuni BST40-225: 58431099000
  • Idling Jet: 58431007047, 58431007045
  • Additional References: 58431028000, 58431020000, 58431099000, 58431007047
Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).

Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.

Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details

Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy

By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.

Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.

More answers in our FAQ.

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