2Bros Parts

HOT START PLUNGER KIT ALL BALLS 46-2003 YAMAHA 03-13 WR YZ 250 450 F

£25.82

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UK delivery £4.99, free over £60 2–4 business days

Out of Stock

The All Balls Hot Start Plunger Kit (46-2003) is a direct replacement assembly for the hot start circuit on select off-road models. It is designed for precise fit in Keihin FCR/FCR-MX carburettors, providing the components required to restore proper hot start function. This kit offers a direct OEM replacement at a fraction of the cost. It is CNC machined for precise fitment and shape, meeting or exceeding OEM standards. The kit contains all the components needed for rebuilding the choke plunger, including the plunger, O-rings, seals/gaskets, spring, screws, retaining nut, and boots and cable guide where required. The O-rings and rubber gaskets are made from NBR (nitrile) material, compatible with ethanol-blended fuels. Manufacturer: All Balls Racing. Manufacturer Part Number: 46-2003. Alternative/Stock Reference: Part No. 18-7257.AB.

Specifications
SKU
18-7257.AB
Brand
All Balls Racing
Availability
Out of Stock

Fitments (38)

MakeModelYear
YAMAHAWR 250F2003
YAMAHAWR 250F2004
YAMAHAWR 250F2005
YAMAHAWR 250F2006
YAMAHAWR 250F2007
YAMAHAWR 250F2008
YAMAHAWR 250F2009
YAMAHAWR 250F2010
YAMAHAWR 250F2011
YAMAHAWR 250F2012
YAMAHAWR 250F2013
YAMAHAWR 450F2003
YAMAHAWR 450F2004
YAMAHAWR 450F2005
YAMAHAWR 450F2006
YAMAHAWR 450F2007
YAMAHAWR 450F2008
YAMAHAWR 450F2009
YAMAHAWR 450F2010
YAMAHAWR 450F2011
YAMAHAYZ 250F2003
YAMAHAYZ 250F2004
YAMAHAYZ 250F2005
YAMAHAYZ 250F2006
YAMAHAYZ 250F2007
YAMAHAYZ 250F2008
YAMAHAYZ 250F2009
YAMAHAYZ 250F2010
YAMAHAYZ 250F2011
YAMAHAYZ 250F2012
YAMAHAYZ 250F2013
YAMAHAYZ 450F2003
YAMAHAYZ 450F2004
YAMAHAYZ 450F2005
YAMAHAYZ 450F2006
YAMAHAYZ 450F2007
YAMAHAYZ 450F2008
YAMAHAYZ 450F2009
General Product Group
Handlebar & Controls
General Product Type
Hot Start Components
Variant Id
288096
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

All Balls Racing Hot Start Plunger Kit

The All Balls Hot Start Plunger Kit is a direct replacement assembly designed to restore the proper function of the hot start circuit on select off-road motorcycles. This kit is specifically engineered for precise fitment in Keihin FCR/FCR-MX carburettors, addressing issues related to hard starting or a seized plunger.

Key Features:

  • Direct Replacement: Offers an OEM equivalent at a significantly lower cost.
  • Precision Machining: CNC machined components ensure accurate fit and shape.
  • Quality Assurance: Meets or exceeds original equipment manufacturer standards.
  • Complete Rebuild: Includes all necessary components for rebuilding the choke plunger assembly.
  • Durable Materials: Features NBR (nitrile) elastomer for O-rings and rubber gaskets, ensuring compatibility with ethanol-blended fuels.

Kit Contents:

  • Plunger
  • O-rings
  • Seals/Gaskets
  • Spring
  • Screws
  • Retaining nut
  • Boots
  • Cable guide (where required)

Specifications:

  • Manufacturer: All Balls Racing
  • Manufacturer Part Number: 46-2003
Before you buy

QUESTIONS? JUST ASK

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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.

UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. 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

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Out of stock