21007-K01, 767M05250, 4034, CBK0076, WPC123, 822173, 808614, 811614, WPC123, WCA021, CS2008, 99530-10114-00, BR10EG, 5PA-11400-00-00, 5PA-11311-20-00, 4ES-11311-30-00, 93210-56459-00, 93210-84724-00, 4ES-11351-00-00, 4ES-11631-01-A0, 4ES-11633-00-00, 43K-11611-00-00, 93450-16115-00, 4ES-11311-20-00

Yamaha YZ85 Big Bore +2mm Stroker Engine Rebuild Kit (20022018)

Product Overview

Boost your YZ85’s performance with this comprehensive engine rebuild kit, designed for 20022018 models. Featuring a Big Bore52.50mm OEM cylinder and a +2mm Hot Rods stroker crankshaft, this kit increases displacement to approximately 103.5cc, delivering enhanced torque and power.

Whats Included

• Genuine Yamaha OEM 52.50mm Cylinder Plated by Millennium Technologies for durability
• Wiseco or Wossner Moly-Coated Race Piston Includes nitrite rings, chrome wristpin, and circlips
• Hot Rods +2mm Stroker Crankshaft Assembly Complete with connecting rod
• Hot Rods Wrist Pin Bearing
• SKF or Hot Rods Main Crank Bearings
• Transmission Bearing Kit
• Water Pump Bearing
• Clutch Arm Needle Bearing
• Complete Gasket Kit
• Crankcase Engine Oil Seal Kit
• Maxlock Cylinder Head Stud Kit with Nuts
• Maxlock Allen Drive Studs & Cylinder Dowel Pins
• NGK Spark Plug

Model Fitment

Yamaha YZ85 Fits all years from 2002 through 2018

Advantage What It Means for You +2mm Stroker Crankshaft Increases displacement for improved low-end torque and power OEM Cylinder with Millennium Plating Top-tier durability and cylinder performance High-Quality Bearings & Gaskets Complete bottom-end protection with OEM-equivalent components Everything Included Simplifies your rebuild process with a complete package

FAQs

• Do I need to modify the cylinder for stroker clearance? Yes, minor machining may be required for clearance.
• Can I use pump gas? Yes, this setup is compatible with pump or race fuel.
• Are the parts all brand new? Absolutely! Everything comes new in the original packaging.

Why Buy from ?

The Best Parts. The Best Performance. The Best Price.
All items are new, factory-sealed, and backed by full manufacturer warranty. We are an authorized distributor.
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Rebuild your YZ85 with power and confidence Order this complete kit today!

LLC