Moose Offroad Crankshaft Bearing and Seal Kit 0924-0604 - Yamaha 65cc-85cc 2018-2025

Moose Offroad Crankshaft Bearing and Seal Kit 0924-0604 — 2018-2025 Yamaha YZ65, YZ85 & YZ85 LW

Product Description

The Moose Offroad Crankshaft Bearing and Seal Kit provides precision-engineered components designed to restore bottom-end reliability to your youth 2-stroke engine. Built for durability under the high-revving demands of junior racing and track conditions, this complete kit ensures smooth crankshaft rotation and dependable crankcase sealing.

Featuring high-precision crank bearings paired with specialized fluorocarbon-lipped outer seals, this kit minimizes dry-start friction and prevents air leaks. It includes everything needed to service the right and left sides of the crankshaft assembly during a complete engine rebuild.

Top Features: Moose Offroad Crankshaft Bearing and Seal Kit

• Includes precision-machined high-performance crank bearings for smooth, dependable rotation.
• Kit contains both right and left-side crankshaft bearings along with dedicated outer 2-stroke seals.
• Seals are engineered with a specialized fluorocarbon lip to significantly reduce dry-start friction.
• Direct-replacement components designed to match OEM tolerances for straightforward installation.

Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.

Fitment List

Frequently Asked Questions

Q: Do these bearings come pre-lubricated?
A: They feature a protective factory coating, but you should thoroughly lubricate both bearings and the fluorocarbon seals with clean 2-stroke engine oil or assembly lube before final crankcase assembly.

Q: Are crankshaft seals included in this kit?
A: Yes, this complete bottom-end kit includes both the left and right crankshaft bearings along with the matching outer oil seals.

Expert Pro-Tip: When installing new crank bearings and seals, always heat the engine case evenly using a heat gun and freeze the crankshaft beforehand to allow the bearings to drop in smoothly without hammering or side-loading the races. Ensure the fluorocarbon seal lips are lightly greased to prevent dry-start wear upon initial engine startup.

Recommended Pairings:

• Yamaha 2-Stroke Performance Parts
• Motorcycle Tools
• Motorcycle Chemicals

About Moto-House MX

At Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. We pride ourselves on great customer service, and every item ships FAST - straight to your door.

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