CYLINDER SLEEVE 77-77 YAMAHA YZ 80 49mm VINTCO SLY11B

VintCo Replacement Cylinder Sleeve for Vintage Yamaha YZ80

Restore your classic Yamaha YZ80 with this high-quality VintCo cylinder sleeve. Specifically designed as a replacement liner for the 1977 model year, this sleeve is the ideal solution for rebuilding worn or damaged original cylinders, especially when complete replacements are scarce. Manufactured in the USA from durable cast iron, it utilizes modern production techniques to ensure precise fitment and reliable performance.

This VintCo cylinder sleeve features correctly angled ports, a thoughtful design element that significantly reduces the need for complex port-matching procedures during installation. This streamlines the rebuilding process for qualified mechanics. The sleeve's dimensions are meticulously provided, enabling an experienced and qualified machinist to bore and hone it to perfectly match the stock-size VintCo piston kit, ensuring optimal engine function.

Key Features:

• Direct replacement cylinder sleeve for vintage Yamaha YZ80 engines.
• Essential for rebuilding worn or damaged original cylinders.
• Designed for installation by experienced and qualified machinists.
• Pre-angled ports minimize port-matching labor during installation.
• Can be bored and honed to precisely fit the stock-size VintCo piston kit.
• Manufactured using modern techniques for exceptional OEM-style fitment and performance.
• Constructed from durable cast iron for longevity.
• Made in the USA for superior quality control.

Specifications:

• Product Type: Cylinder Sleeve
• Material: Cast iron
• Country of Manufacture: USA
• Bore: 49 mm
• Height: 100.6 mm
• Outside Diameter: 58.4 mm
• Flange Outside Diameter: 61 mm
• Flange Height: 3.8 mm
• Wall Thickness: 5.1 mm
• Intake Port Diameter: 21 mm
• Exhaust Port Location: 22.6 mm