The beast, the Yamaha Warrior 350, is a top-class, all-terrain vehicle (ATV). Yamaha Motor Company manufactured this 37 lb sport class vehicle from 1987 to 2004. It was in 2004 that the company halted its production to launch the Raptor 350 model. Despite this, it remains the best-selling ATV of all time. Now you may wonder what makes it so worthy. Let’s find it.
Thanks to its robust specs, the Warrior 350 outcompetes the competition. To begin with, the top speed reaches up to 63MPH, courtesy of its 19 horsepower 4-stroke 348cc engine. Moreover, what acclaims its global popularity is the world’s first electric engine starter. 30.1 inches is its seat height.
Furthermore, it comes with a snorkel kit which enables it to ATV mudding and rides in shallow waters. After knowing all these specs, you may imagine what it is like to ride this machine. The mid-range solid pulling characteristics of the Warrior 350 are appealing. Due to these specs, the 350 remains the top-selling beast to date.
Specs of Yamaha Warrior 350
Engine | 4-Stroke, air-cooled single cylinder SOHC |
Compression Ration | 9.2:1 |
Fuel Capacity | 9.1 liters (2.4 Gallons) |
Ignition | Electric Start |
Front Tire | AT 22X7-10 |
Rear Tire | AT 22X10-9 |
Wheels | Tubeless aluminum |
Front Brake | Single-lever hydraulic |
Rear Brake | Hydraulic Disc Foot Brake |
Suspensions | 7.9 in |
The strength and power of this sturdy machine lie in its specifications. Let’s give them a penetrating look.
Top Speed of Yamaha Warrior 350
The top speed of the Yamaha Warrior is 63 mph(101 kph). However, factors such as quad condition, rider weight, upgrades, and weather influence optimal performance. Further, its horsepower also impacts the top speed and overall performance. Although the Warrior 350 is equipped with 19 horsepower, you can get more besides your torque simultaneously.

Moreover, depending on the outside temperature, you can use a 4-cycle 10W-30 to 20W-50m engine oil. And the oil capacity is 2.6 quarts with a filter change. One easy and cost-effective way to gain more power is to change the stock system with lighter exhaust and intake and less restrictive, along with jazzed-up cams. Doing this will positively impact additional engine modes you want to do on your quad. Last but not least, the cams increase mid-range and top-end power without compromising on the sport quad easy ride power delivery.
You can further enhance its top speed with modifications such as bolting an exhaust, a UNI filter, opening the airbox, and re-jetting. These minor things kick up your beast. For riding on dusty terrain, a foam filter kit is more beneficial.
Power Pack Four-Stroke Engine
Regarding power, the Yamaha Warrior 350 came to compete with Honda EX400 and Yamaha YZ125. Well, it exceptionally exceeds both of its competitors. Being an electric start, its engine is a 348 ccs air-cooled engine with low-end power. However, its single-cam build makes it stand out in the market, unlike other vehicles, such as the EX400. The latter accompanies a double overhead cam. Having this type of engine avoids expensive engine damage because they don’t experience phasing issues.

Besides that, if you want more horsepower by turning on the mod, the SOHC engine of the Warrior 350 proves effective. Because it requires less advanced engine in-depth understanding, cutting your cost. On top of that, if you have ever tried a Raptor rebuild, Warrior’s mods would be more accessible because both vehicles feature the same engine. And in case you want to change your engine, you can choose from engines for sale for both the Yamaha Raptor and Warrior.
How Much You Pay: Price Review
Want to know the price of a Warrior 350? Read the section below. It differs based on the model year and package additions. However, the cost ranges from $4999 to $2960. The cheaper alternatives are also available with an average price of around $905, depending on the condition.
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Easy Accessibility of Spare Parts
Fortunately, parts of the Warrior 350 are readily available thanks to the improvements in the last couple of years. For example, electric parts such as the battery, starter, spark plug, switch, ignition coils, and spark plug wires work together to power the 350. They are made and shaped from durable plastic. Then, easy detachment is ensured by joining them with bolts to enhance operational ease. The parts comprise bumpers, skid plates, plastic seats, nerf bars, and windshields.
Despite this, many of its parts may need to be revised to fit your model. You can transfer these race parts to any other quad you use.
Souring the Deal: Common Issues with Yamaha Warrior 350
Its suspension and build are what the Warrior 350 lags behind. Ironically, narrow width, low-end power, outdated suspension, and heavy frame impressed previous customers while riding on wooded trails. But these are the same things that irritate them while using them for all-out races and strict dune riding. Moreover, users also don’t like its ergonomic seating, which they find terrible. It puts pressure on the knees of aggressive riders because they have to sit so deep in the saddle. It also lacks a kick starter and is extremely heavy. Even with all this, the Yamaha Warrior 350 is a sturdy and robust machine to ride on.

Rand Frankey is OffRoadsCare freelance Content Editor. He loves offroad Travelling and bikes, jeeps, and dirk bikes. He will explain all his experience with dirt bikes and offroad vehicles which helps you to make a decision like which vehicle is right for you.