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PISTON KIT 91-91 YAMAHA YZ WR 250 69mm 1.0mm OVER VINTCO PSY21-1.0
  • PISTON KIT 91-91 YAMAHA YZ WR 250 69mm 1.0mm OVER VINTCO PSY21-1.0
  • PISTON KIT 91-91 YAMAHA YZ WR 250 69mm 1.0mm OVER VINTCO PSY21-1.0
  • PISTON KIT 91-91 YAMAHA YZ WR 250 69mm 1.0mm OVER VINTCO PSY21-1.0
  • PISTON KIT 91-91 YAMAHA YZ WR 250 69mm 1.0mm OVER VINTCO PSY21-1.0
  • PISTON KIT 91-91 YAMAHA YZ WR 250 69mm 1.0mm OVER VINTCO PSY21-1.0
  • PISTON KIT 91-91 YAMAHA YZ WR 250 69mm 1.0mm OVER VINTCO PSY21-1.0
  • PISTON KIT 91-91 YAMAHA YZ WR 250 69mm 1.0mm OVER VINTCO PSY21-1.0
  • PISTON KIT 91-91 YAMAHA YZ WR 250 69mm 1.0mm OVER VINTCO PSY21-1.0
  • PISTON KIT 91-91 YAMAHA YZ WR 250 69mm 1.0mm OVER VINTCO PSY21-1.0
  • PISTON KIT 91-91 YAMAHA YZ WR 250 69mm 1.0mm OVER VINTCO PSY21-1.0
PISTON KIT 91-91 YAMAHA YZ WR 250 69mm 1.0mm OVER VINTCO PSY21-1.0

PISTON KIT 91-91 YAMAHA YZ WR 250 69mm 1.0mm OVER VINTCO PSY21-1.0

£151.16 GBP
Taxes included. Shipping calculated at checkout.

This VintCo piston kit is a replacement assembly for 1991 Yamaha YZ250 and WR250 2-stroke models, manufactured using modern materials and production methods for OEM-equivalent fitment and performance. The kit includes the piston, rings, pin and clips, and is intended for 69 mm applications with a +1.0 mm oversize.

Features

  • Complete piston kit including piston, rings, pin and clips
  • Suitable for vintage 2-stroke engine rebuilds
  • Forged piston
  • MoS2 coated for running-in
  • Wrist pin bearing available separately
  • Made in Germany

Specifications

  • VintCo Part Number: PSY21-1.0
  • Piston size: 69 mm
  • Oversize: +1.0 mm
  • Piston measurement: 68.94 mm
  • Clearance: 0.06 mm

Vehicle Fitments

  • 1991 Yamaha WR250
  • 1991 Yamaha YZ250