VintCo SLY09A is a replacement cast-iron cylinder sleeve for 1980-1981 Yamaha YZ250 and 1981 Yamaha IT250 models. Made in the USA for VintCo by Advanced Sleeve, it is intended for restoring worn or damaged vintage cylinders and is supplied with the dimensional information required for installation by an experienced and qualified machinist.

Features

• Replacement cylinder sleeve for vintage Yamaha applications
• Suitable for restoring original cylinders that require re-sleeving
• Correctly angled ports to reduce port-matching work
• Can be bored and honed to suit a stock-size VintCo piston kit
• Manufactured using modern materials and production techniques

Specifications

• VintCo Part Number: SLY09A
• Compatible piston kit part number: PSY09-00
• Material: Cast iron
• Country of manufacture: USA
• Made for VintCo by Advanced Sleeve
• Bore: 70 mm
• Height: 135.5 mm
• Outside diameter: 80.7 mm
• Flange outside diameter: 83.9 mm
• Flange height: 5.1 mm
• Wall thickness: 5.9 mm
• Intake: 35 mm
• Exhaust port location: 35.4 mm

Vehicle Fitments

• 1980 Yamaha YZ250
• 1981 Yamaha YZ250
• 1981 Yamaha IT250