The 2000s were a busy decade for ATVs, and the same can be said for the Yamaha Raptor 350. This mid-bore quad hit the ground running in 2004, effectively competing in top speed and handling. It wasn’t a crowd-pleaser, but for Raptor owners, it was one spectacular machine.
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The Yamaha Raptor 350 was a sport and recreational ATV produced by Yamaha from 2004 to 2013. It featured low to mid-range power, superb handling, and racy aesthetics. This four-wheeler was fun to ride and perfect for off-road trails.
This sporty 4×4 remained unmatched in performance, acceptance, and design through its production. Unlike its big-bore sibling, the Raptor 350 enjoyed a successful 10-year production run, only to stop due to the rising popularity of the Raptor 250. There is so much more to discover about the Yamaha Raptor 350 other than specs and known issues. Let this guide enlighten you.
Yamaha Raptor 350 SpecsEngine: The Raptor 350 uses a four-stroke, air-cooled, single-cylinder SOHC engine. Its forward-inclined power mill has a bore-stroke ratio of 83 by 64.5 mm (3.27 × 2.54 inches). It has an engine displacement of 349 cm3, a compression ratio of 9.20:1, and a wet-sump lubrication system. A 36-mm Mikuni BSR36 carburetor and a wet-type air filtration system handle the air-fuel mixture. The Yamaha Raptor 350 has a maximum power output of 16.4 kW (22.3PS). 2.38 US gal/9 liters of unleaded gasoline with a pump Octane number of 87+ and a research Octane number of 91+ is enough to fill the vehicle’s tank.Drivetrain: A six-speed constant-mesh shaft drive and a wet, centrifugal automatic clutch system power the wheels. It has a primary spur gear with a reduction ratio of 76/24 (3.167). The first gear ratio is 36/16 (2.685), and the sixth gear is 23/29 (0.946). A 10.2-feet turning radius allows for smoother handling.Brakes: A right-hand-operated dual hydraulic disc brake and a right-foot-operated single hydraulic disc brake comprise the Yamaha Raptor 350’s engine braking system, which provides it stopping power.Suspension: Enclosed in the vehicle’s steel frame is a double-wishbone front suspension with coil spring shocks and swingarm link rear suspension with coil spring/gas shocks. Wheel travel is 200 mm (7.87 inches) and 210 mm (8.27 inches) for front and rear.Dimensions: Overall dimensions are 69.7 x 43.1 x 42.5 inches (1,770 x 1,095 x 1,080 mm – L x W x H). The minimum ground clearance is 4.53 inches (115 mm), while the vehicle wheelbase is 47.6 inches (1,210 mm). The curb weight is 180 Kg/397 lbs. The seat height is 32.3 inches/820 mm.Exterior: The Raptor 350 comprises a steel tube frame (with a 6° caster angle and 26-mm trail) and plastic body material. Standard inclusions are hand grips, 45-mm footpegs, and front and rear fenders. It has two 30-watt headlights on the front fenders, a 21-watt tail/brake light, and 1.7-watt indicator lights. Convert these to LED lights for improved visibility during late-night wheeling.
Yamaha Raptor 350 CostDepending on model year, trim, and package inclusions, the Raptor’s base model’s price could be anywhere from $4,999 to $5,599. Adding a full-on range of accessories – including GYTR aluminum engine/front A-arm/swingarm skid plates, front grab bar, antenna, hour meter, tachometer, and complete racer pack – would increase the list price of your chosen model by at least $700. Mods would increase your expenses further.
Auction listings are priced between $1,700 and $5,460 and are usually 2004 to 2007 model years. Most of the units up for bidding are either modded or in near-stock mint condition. 2008 and recent-year models are rarely seen in auction and trader sites and would typically be $2,500 to $4,000. The white-and-gray trim seems to hold its value well, regardless of the year of manufacture.
Yamaha Raptor 350 Top Speed
Because the Raptor is known to share the same engine with the Warrior 350, people often conclude that the two machines have the same top speed, somewhere around 63 mph (on flat surfaces). Expectedly, this figure may differ due to the effects of weather, rider weight, vehicle condition, upgrades, and several other factors. However, there are Raptor owners who claim to easily hit 70 mph/113 kph with only minor mods and 14T for the front sprocket.
Yamaha Raptor 350 Problems
The Yamaha Raptor may be a reliable machine, but it does have a few real problems. Here are the top ones to note with corresponding fixes:
Engine and Electronic Issues
This issue is both self-inflicted and due to wear and tear and should not come as a surprise if you ride your Raptor hard. It is a frustrating issue to fix since the symptoms can give the quad owner mixed signals to what is causing the dysfunction. To rectify, you will have to do the following:Verify if your wheeler has spark when it does not start. If no, then change the spark plug.Take a dry and wet compression check.Thoroughly clean the carburetor and adjust the float as needed.Inspect the fuel flow from the tank. Make sure it is not stale as it will gel and clog the fuel filters and carb.Triple check timing marks for ignition, crank, and cam (refer to your owner’s manual for specs).Trickle-charge your battery for a few days and test voltage with the motor off and running.Test and replace coils, stator, CDI box, and starter.Replace piston, rings, valve seals and springs, top-end gaskets, and clutch plates.Preferably, get a high output Earthex battery to swap your stock with.Re-hone the cylinder.Clean all of the grounds.Add dielectric grease to all of the connectors.
Challenges with starting the engine are mostly from a dirty carburetor and valves needing adjustment. But identifying the culprit may be more uncomplicated than it usually seems. A trick/quick test that seems to work is to turn the petcock to reserve and see if the fuel flows. If it does, then that would mean a plugged screen inside the tank – this should be a more straightforward fix than ripping the carb apart to check for causes, which can be tiresome.
All Raptor models inherently have fragile frames at the front of the engine. For secondhand quad buyers, stand the vehicle up from its grab bar and make sure to eyeball the frame’s straightness. If the wheeler has been wrecked hard, the front frame will usually break first. Look at the sub-frame where the rear grab bar mounts and verify that it is not crooked or bent. Your findings will indicate how well the vehicle has been maintained and should be the basis of how you would negotiate your paying price.
Other than the issues mentioned, the Raptor is a bulletproof machine and, just like any other vehicle, would need proper care and faithful upkeep to remain in superb working condition.
Yamaha Motor Company Limited, the maker of the Yamaha Raptor 350, was initially founded in 1887 in Shizouka, Japan. The Japanese firm began as a piano and reed organ manufacturer, eventually venturing into motorcycle production after World War II. In 1955, it parted ways with its parent company to become Yamaha Motor Co., Ltd. From the ’60s to spawning the ATV industry in the ’80s, the rest is history. At present, Yamaha produces off-road vehicles, personal watercraft, speed boats, and outboard motors.
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Conclusion – Yamaha Raptor 350
Undeniably, the Raptor is one of those no-frills wheelers that can accommodate a wide variety of riders – from the second-guessing newbie still refining his throttle coordination to the in-training aggressive rider who prefers to spend time at the brow of the vehicle’s rev range. This mid-bore, mean machine ranks high on the fun factor, has a bit more power and suspension, and can be enjoyed by most family members. It functions and looks on the outside and has speeds that can give anyone a memorable, hair-raising experience. It’s not in the same league as larger-displacement, race-ready quads, but the Yamaha Raptor 350 has got a dose of all the good stuff those big-bore behemoths have.