CYLINDER SLEEVE 77-79 YAMAHA YZ IT 175 66MM VINTCO SLY08A

This VintCo cylinder sleeve is a replacement sleeve for 1977-1979 Yamaha YZ175 and IT175 models, intended for restoring original cylinders on vintage machines where replacement cylinders can be difficult to source. Made in the USA for VintCo by Advanced Sleeve, it is produced using modern manufacturing methods for OEM-equivalent or better fitment and performance. The sleeve is supplied with dimensional information for installation by an experienced and qualified machinist, features correctly angled ports to reduce port-matching work, and can be bored and honed to suit a stock-size VintCo piston kit.

Features

• Replacement cylinder sleeve for vintage Yamaha YZ175 and IT175 models
• Suitable for restoring original cylinders when replacements are difficult to obtain
• Made in the USA for VintCo by Advanced Sleeve
• Produced using modern manufacturing techniques
• Designed for OEM-equivalent or better fitment and performance
• Correctly angled ports reduce port-matching work compared with other sleeves
• Can be bored and honed to suit a stock-size VintCo piston kit
• Intended for installation by an experienced and qualified machinist

Specifications

• VintCo Part Number: SLY08A
• Piston Part Number: PSY08-00
• Material: Cast iron
• Bore: 66 mm
• Height: 117.2 mm
• Outer Diameter: 72.1 mm
• Flange Outer Diameter: 74.6 mm
• Flange Height: 5.1 mm
• Wall Thickness: 3.6 mm
• Intake: 24.5 mm
• Exhaust Port Location: 24.5 mm

Vehicle Fitments

• 1977 Yamaha IT175
• 1977 Yamaha YZ175
• 1978 Yamaha IT175
• 1978 Yamaha YZ175
• 1979 Yamaha IT175
• 1979 Yamaha YZ175