Yamaha YZ490 Parts (1982–1990) – OEM & Aftermarket Motorcycle Parts
Looking for Yamaha YZ490 parts? This collection includes OEM and aftermarket Yamaha YZ490 motorcycle parts for big-bore motocross models where fitment applies. Whether you are maintaining a vintage moto bike, sorting a race-era project, or restoring a classic YZ490, this page helps you find dependable Yamaha YZ490 replacement parts faster.
The Yamaha YZ490 was one of the defining open-class motocross bikes of the 1980s. Its air-cooled big-bore two-stroke engine, simple race-ready chassis, and raw power delivery made it a legend among riders who wanted brutal acceleration and true old-school motocross character.
Buyer intent around this family often includes Yamaha YZ490 parts, YZ490 top-end parts, carburetor parts, clutch parts, brake parts, fork seals, gasket sets, and ignition components. Accurate year-and-model fitment is especially important on a competition machine with frequent rebuild needs.
Quality YZ490 Parts – Built for Open-Class Motocross Maintenance & Restoration
At Old Bike Barn, we specialize in OEM and aftermarket Yamaha YZ490 parts for riders who want dependable fitment and trusted quality. Whether you are rebuilding a motor, refreshing a vintage racer, or replacing hard-used controls and wear items, this collection is built to make parts shopping easier.
This page includes: engine gasket sets and seal kits, top-end and intake service parts, carburetor components, fork seals and suspension components, throttle, clutch, and brake parts, cables, levers, controls, and electrical components such as ignition parts, switches, and wiring essentials.
All parts are curated specifically for Yamaha YZ490 models where fitment applies, helping riders shop confidently for maintenance, repair, and restoration parts. Whether you are rebuilding the top end, fixing fuel delivery, or replacing worn motocross controls, we focus on proper fitment, reliable operation, and long-term durability.
Why Choose Old Bike Barn?
Hard-to-find OEM and aftermarket parts, accurate year-specific fitment, inventory curated by riders who wrench, and friendly support from knowledgeable motorcycle specialists — that’s why riders trust Old Bike Barn for Yamaha YZ490 parts. We help keep vintage Yamaha motocross bikes race-ready.
Building a Custom YZ490?
Some parts on a custom build are not model-specific. If you’re changing handlebars, mirrors, lighting, controls, shocks, exhaust pieces, fuel line, or hardware, visit our universal and custom motorcycle parts collection.
These parts are useful for cafe racers, brat builds, trackers, choppers, and garage-built vintage motorcycles, but they are not guaranteed to fit every bike without checking. Always compare measurements, mounting style, clearance, and product notes before ordering.