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  • Cylinder Works

Cylinder Works +3mm Big Bore Complete Cylinder Kit - 269cc - 21002-K01

  • Part #: 140406
  • Manufacturer Part #: 21002-K01
  • MSRP Price: $649.95
  • Our Price: $584.96
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140406
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Overview of Cylinder Works +3mm Big Bore Complete Cylinder Kit - 269cc - 21002-K01

  • Direct bolt-on, ready-to-install cylinders; require no replating and look virtually identical to the OEM
  • Nickel Silicon Carbide plated for long life
  • Honed to exact size for easy piston installation
  • Big bore cylinders do not require machine work (unless noted)
  • Big bore cylinder kits come complete with gaskets, cylinder, piston, rings, pin and clips

  • REPLACEMENT PARTS

  • Replacement Big Bore Cylinder: Order No. 140411
  • Replacement Big Bore Piston Kit: Order No. 131449S
  • Replacement Big Bore Piston Rings: Order No. 131449SR
  • Replacement Big Bore Gasket Kit: Order No. 263950


Specs

Type Cylinder Kit
Units Each
Weight 3.35 lbs

Specs for Cylinder Works +3mm Big Bore Complete Cylinder Kit - 269cc - 21002-K01

Type Cylinder Kit
Units Each
Weight 3.35 lbs

Fitment for Cylinder Works +3mm Big Bore Complete Cylinder Kit - 269cc - 21002-K01

Part 140406 fits the following machines

See if this part fits your ride

Yamaha
2006 Yamaha WR250F
2005 Yamaha WR250F
2004 Yamaha WR250F
2003 Yamaha WR250F
2002 Yamaha WR250F
2001 Yamaha WR250F
2013 Yamaha YZ250F
2012 Yamaha YZ250F
2011 Yamaha YZ250F
2010 Yamaha YZ250F
2009 Yamaha YZ250F
2008 Yamaha YZ250F
2007 Yamaha YZ250F
2006 Yamaha YZ250F
2005 Yamaha YZ250F
2004 Yamaha YZ250F
2003 Yamaha YZ250F
2002 Yamaha YZ250F
2001 Yamaha YZ250F
2006 Yamaha YZ250FSP 50th Anniversary Edition

Reviews for Cylinder Works +3mm Big Bore Complete Cylinder Kit - 269cc - 21002-K01

out of 2 reviews.

2 out of 2 (100%) customers would recommend this to a friend.

5 Stars
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August 7, 2011

Great power increase in my WR450. The C-clips for the piston wrist pin are a bit difficult. I think the design would need a lock ring...All over good choice. Recommend rejetting your carb and a quick shot excellerator pump cover for best performance.

I would recommend this item to a friend.
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By: from Panama City Fla

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Great up-grade

March 2, 2010

I put this big bore kit on my bike , and wow everything fit excellent and it was so easy. I got so much more power now when i'm up in the mountains and over on the track. It was well worth the money and it was so quick to change out. I'm satisfied and happy with my choice.

I would recommend this item to a friend.
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By: from Gespe coast,Quebec

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Instructions and Media for Cylinder Works +3mm Big Bore Complete Cylinder Kit - 269cc - 21002-K01

Instructions - PDF Instructions - PDF Instructional PDF
Video Product Info: Cylinder Works: Big Bore Kit Instructional Video 3:9