Find used OEM parts for the Yamaha Warrior 350 and Raptor 350 at Sun Coast Cycle Sports. These two models represent the same basic 349cc air-cooled single-cylinder four-stroke sport ATV platform that Yamaha produced across a combined 27-year production run. The Warrior 350 (YFM350X, 1987-2004) was the original mid-bore sport quad that defined the category, and the Raptor 350 (YFM350R, 2004-2013) was its direct successor with updated styling, a revised frame, and the addition of reverse gear. Both use a six-speed manual transmission, chain drive, and 2WD rear-wheel-drive configuration. All parts in our catalog are sourced from complete donor machines, inspected, and ship with individual photos from our Florida facility.
Warrior and Raptor 350 generation and parts compatibility
| Model | Years | Engine | Key features |
|---|
| Warrior 350 (YFM350X) | 1987-2004 | 349cc air-cooled SOHC single | 6-speed manual, chain drive, no reverse gear |
| Raptor 350 (YFM350R) | 2004-2013 | 349cc air-cooled SOHC single | 6-speed manual with reverse, revised frame geometry, updated plastics, lighter weight |
The Warrior 350 and Raptor 350 share the same 349cc engine with identical bore, stroke, compression ratio, and carburetion (Mikuni 36mm). Many engine internals including the camshaft, piston, cylinder, valvetrain, and transmission gears are interchangeable between the two. The Raptor 350 has a slightly revised frame with different geometry for improved handling, updated plastics and bodywork, and critically, the addition of a reverse gear selectable from any forward gear. Frame-specific components (A-arms, shock mounts) may differ between Warrior and Raptor due to the geometry changes, but many suspension components, brakes, and controls cross between the two.
The Warrior/Raptor 350 engine is also related to the Yamaha Bruin 350 and Grizzly 350 utility ATVs, which use versions of the same single-cylinder engine in utility-oriented configurations with CVT transmissions. Some engine internals may cross to those models. The Warrior/Raptor 350 does not share parts with the Raptor 660 or 700, which use entirely different engines and chassis.
Common Warrior/Raptor 350 failure points and replacement parts
Valvetrain wear: The SOHC single-cylinder requires periodic valve clearance adjustment. Neglected valve adjustment leads to hard starting, power loss, and potential valve damage over time. This is a routine maintenance item rather than a design defect.
Carburetor issues: The single Mikuni 36mm carburetor is sensitive to ethanol fuel and seasonal storage. Clogged pilot jets, stuck floats, and deteriorated rubber components are common on machines that sit between riding seasons.
Chain and sprocket wear: The chain drive system wears over time, especially under aggressive sport riding conditions. Regular chain tension adjustment, lubrication, and timely chain/sprocket set replacement are essential maintenance items.
Clutch wear: The manual six-speed transmission uses a wet clutch that wears under sport riding conditions. Clutch plate and spring replacement is needed periodically, especially on machines that see aggressive riding, hill climbing, or frequent launches.
Suspension bushing and bearing wear: A-arm bushings, tie rod ends, and wheel bearings wear under off-road conditions. Play in the steering and suspension indicates worn components that need replacement.
Commonly replaced Warrior/Raptor 350 parts
- Carburetor rebuild kit and intake components
- Clutch plates, springs, and clutch cable
- Chain, sprockets, and chain guide
- Valve adjustment shims and camshaft
- A-arm bushings, tie rod ends, and ball joints
- Brake pads and brake cables/calipers
- Plastics and fender assemblies
- Starter motor and starter relay
- Exhaust system and silencer
Frequently asked questions
Q: Are Yamaha Warrior 350 and Raptor 350 parts interchangeable?
The engine is essentially the same between the two models, and most internal engine parts interchange. The Raptor 350 has a revised frame with different geometry and the addition of a reverse gear mechanism. Frame-specific components may differ, but many suspension parts, brakes, controls, and all engine internals cross between the Warrior and Raptor 350.
Q: What is the main difference between the Warrior 350 and Raptor 350?
The Raptor 350 (2004-2013) is the updated successor to the Warrior 350 (1987-2004). The biggest functional improvement is the addition of reverse gear, selectable from any forward gear. The Raptor also has updated plastics, slightly revised frame geometry for improved handling, and reduced weight. The engine and six-speed manual transmission are mechanically the same.
Q: Does the Warrior/Raptor 350 share engine parts with the Grizzly 350?
The Warrior/Raptor 350, Bruin 350, and Grizzly 350 all use versions of the same 349cc single-cylinder engine. Some internal engine components may cross between the sport and utility applications. However, the transmissions differ (manual six-speed on the Warrior/Raptor vs. CVT automatic on the Grizzly/Bruin), so transmission-specific parts do not interchange.
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