Yamaha 225DX Specs and Review Tri Moto 3 Wheeler 2022

Yamaha 225DX Specs: The company boasts that it was the first major-name ATV company to compete head-to-head against Honda, Yamaha was at the same level again. This time it was different.

The Japanese company did not design an ATV racing model to compete with its long-running rival. 

Yamaha 225DX Specs

It chose to create a more easygoing, less intimidating model that has the right amount of power and speed because it has tricks in its sleeves – something that will appeal to those who love adrenaline and fun. In 1983, the company introduced its Yamaha 225DX.

The Yamaha 225DX (a.k.a. Yamaha the YTM225 Tri Moto) was a sport-rec ATC that sparked the introduction of electric starters and shaft drive in vehicles for all-terrain. 

With a powerful engine, and an array of features that were industry-leading the iconic wheeler was widely regarded as one of the most innovative creations by Yamaha.

The Yamaha 225DX an early model of ATVs with shaft-driven shafts that were electric-start as well, it was equipped with a four-stroke engine that broke the rules of all-terrain vehicles operating in all aspects. 

Although it was not intended to be a racer increasingly, enthusiasts are beginning to realize how efficient it is to ride the dunes. 

If you’re interested in the past and capabilities of this famous wheeler, this guide is for you.

Yamaha 225DX

Say Hello to Convenience

In the space of just three years after the introduction of the Tri-Moto YT125G in 1980, Yamaha introduced the public to another first:

The Yamaha 225DX. The first model to be released in 1983, the three-wheeler boasts of being the first ATC to come with an electric start system as well as shaft drive. 

Because of their creativity, these features brought the 225DX into the spotlight. As if they weren’t enough features, it included telescopic forks on the front and an e-shock rear suspension.

The 225DX was introduced in the ATV world along with other 190-cc Yamahauler (YTM200EK) as well as the Tri-Moto (YTM200K) model. 

It was manufactured for three years, 1983 between 1983 and 1985. Despite its limited lifespan, the machine was successful in leaving an impression on the riders. 

It was technically, Yamaha’s first-ever mass-produced recreational three-wheeler as well as its indirect answer to the Honda’s ATC250R.

Yamaha’s Tri Moto Series

While it isn’t carrying the “Tri Moto” name The Yamaha 225DX is among five variations of the Tri Moto series. 

The year 1979 was when Yamaha launched the 2-stroke, 123-cc Yamaha YT125G. The model gradually increased engine displacement in subsequent models. 

There were improvements made to the machine’s transmission, bore stroke ratio, and output of speed/torque (to just name just a few). 

It is interesting to note that the Tri Moto series began and concluded with an air-cooled 2-stroke engine, with the final edition of the series being that of the Yamaha YTM225DRS Tri Moto manufactured in 1986.

The Tri Moto was only available in 125 class versions. Tri Moto was released in 1980 between 1980 and 1983. 

It wasn’t in 1982, however, that Yamaha released the YT175J in various markets, but only for Japan’s Hokkaido region.

 1983 was the busiest year for the product line-up that included several models, including the YTM200 model and YTM225 models being sold simultaneously.

1984 Yamaha 225DX Specs & Features (YTM225DXL) Engine

Yamaha 225 DX Yamaha 225 DX features an air-cooled 4-stroke power mill that has an 8.8:1 compression ratio, as well as the bore-stroke ratio, which is 70 x 58 millimeters (2.76 2.28 inches). 2.28 inches) which is slightly larger than the Yamaha YTM200K Tri Moto.

Piston displacement is 223 cubic centimeters (13.6 in3) produced through a Mikuni VM22 (later modified to become a VM24SS according to sources online). 

The carburetor was employed in all models (YTM225DXK/L/N) using the identical #112.5 pilot and main air jet.

This enables a Yamaha 250DX maximum speed of between 40 and 60 miles per hour (64.3-96.6 km/h, non-official) and a maximum power of 16.5 Nm (1.69 kgf-m, 12.2 ft-lb) @ 5,500 RPM.

Fuel & Lubrication

As with similar Yamaha Tri Moto models, the 225DX comes with a Wet Sump (pump) fluid system, which is mated to a top-quality foam filter. 

The volume of the fuel tank of 2.4 US gallons, but neither the reserve capacity nor the Pump Octane Number are mentioned in the manual for service.

The capacity of oil needed to be used is 1.5 L/1.6 US qt. (oil modification) as well as 1.8 L/1.9 US qt. 

(engine overhaul) of SAE 20W-40 or an equivalent. For a different approach (engine overhaul), the manufacturer suggests same-viscosity motor oils with no molybdenum and graphite additives.

For temperatures that are less than 40 degC/4 degrees F, make use of API-grade SJ+ SAE 10W-30 oils which meet JASO T903 MA standards.


A constant-mesh 5-speed manual transmission, as well as an automated multi-disc clutch that is centrifugal in design, give force to the wheels.

A Recirculating ball bearing steering system with a shaft final drive handles wheel spin. 

The sequence of shifting can be described as all-up (N-1-2-3-4-5) which is not the same as YTM225DR comes with reverse gear. reverse gear.

This is a revolutionary powertrain since it was the first on the ATV market to use an engine driven by a shaft. 

In comparison to wheelers driven by chains, shaft-driven trikes need less maintenance and run expenses.

Lubrication and adjustment of the chain are not necessary which makes the vehicle more convenient to maintain. 

The best part is that the shaft drive unleashes the maximum potential that is it. Yamaha the 225DX car.

Ignition & Lighting

It comes with a CDI (Capacitor Discharge Ignition) and an electric starter system with recoil backup. 

It is powered by a 12-volt 14Ah/(10 HR) GM14AZ-4A battery, alternator and a solid-state rectifier/regulator make up the charging system. 

The ignition timing cannot be adjusted and is set to 10deg BTDC at 1000 RPM (initial “F” mark) or 30deg BTDC at 6000 RPM (full advance).

Spark plug requirements are similar to that of the 1983 Tri Moto – an NGK the DR7EA or the ND X22ES-U plug that has a 0.6-0.7 millimeter (0.024-0.028 millimeters) gap. 

Similar to the idle rate, which is at 1,400 + 50 RPM. Lighting specifications are 45 W (headlight), 7.5 W (taillight) and 3.4 W (neutral and reverse).

If damaged or worn If your battery is damaged or worn, you can replace the standard battery using the YTX14AH-BS, YB12AA-A, or the YTX14AHL (view the details on Amazon) Format. 

Be sure that you use a battery retainer in the event you buy an aftermarket battery that has an amperage that is lower than the one suggested by the company that makes it. 

Also, make sure you don’t exceed the maximum specific gravity of 1.260 that is stated in the instruction manual for charging.

Tires & Brakes

The stock rubber is composed of low-pressure tubeless 22x 11-8 tires that are set on steel wheels. 

The recommended tire pressures for forward and back wheels range from 15 to 15kPa (0.16 kg/cm2, 2.2 psi) but could be aired lower or inflated to a range of 15 to 69 KPa (0.12-0.70 kg/cm2, 1.8-10 psi), dependent on the type of terrain.

A front drum brake as well as discs that are enclosed in the rear complete the tire-wheel combination.

Converting the stock wheels to aluminum will help reduce the weight of the Yamaha 225DX, which makes it a bit lighter. 

Replace the punctured tires with similar-sized Cheng Shin C829 Knobby tires (view the full list on Amazon) which are ideal to travel on more technical trails. 

For the general health of your wheel and tire assembly, be sure to regularly check the health of the wheels’ bearings and tires, treads, and rims. 

While you’re at it be sure to inspect the master cylinder’s hoses, master cylinders, and caliper units to detect the first signs of damage, or leakage of brake fluid.


The 225DX was among the first models to feature front telescopic forks that were telescopic and a rear mono-shock. 

This innovative technology provided the ATC with smoother and more efficient maneuverability as well as better overall handling than its competitors.

Additionally, it allowed a remarkable 8.1-inch ground clearance, which is compatible with the vehicle’s 45.3-inch wheelbase.


The measurements for width and length from 223-cc Yamaha DX are 71.1 x 40.2 inches (1,805 1 021 millimeters). 

The seat height of this machine of the seat is 28.3 inches (718.8 mm) and is suitable for all bodies. 

Dry weight: 317 pounds (144 kg) an enormous weight for a 225-class bike and could pose a problem for the novice rider who is stuck in the dirt. 

However, the weight/load limits as well as GVWR figures are not included in the manual of service. 

However, based on the capacity of payloads for comparable models it is possible to conclude that the three-wheeler is capable of handling up to 200 pounds (91 kg).


Standard features include Yamaha’s parts like the square headlights, serrated footpegs as well as a contoured, MX-style seat, handgrips rear hitch brackets with black-trimmed rear fenders, and a front beak with high clearance. The tubular steel frame is finished in black and matches the fender trims, grips, and seat. 

From the exterior, both the YTM225DXL as well as YTM225DR models appear almost identical with both trikes covered in Yamaha’s trademark Competition Yellow. To differentiate them be sure to determine which features reverse gear.

Yamaha 225DX 3-Wheeler Pricing

The price of the Yamaha 225DX ranged from $1699 to $1,849 (’83 the YTM225DXK model, and the YTM225DXN) and the 1984 Yamaha YTM225DXL was valued at $1,799 (at least $4,600 should it be the model is sold in the present). 

The price is representative of the base models and does not include accessories and any other kind of accessories available from the dealer. 

With a piston displacement of just one-third of Honda’s ATC250R, it was thought to be affordable and particularly appealing to those seeking an acceptable compromise between price and performance.

Listings on auction and trader sites are not too far off from the MSRP originally set for the Yamaha 225 DX. 

Secondhand models are sold at prices as low as $265 and as high as $1,000. Wheels priced under $300 are typically sold as parts or used for longer time frames.

 Some may be operating occasionally or have minor or constant issues – like puncture-prone of engine flooding. In contrast, pre-owned equipment that is in good working order starts at $735.

The 225DX Tri Moto Restomod

I’ve previously discussed restomod’s recommendations in-depth in an article I wrote in 1981’s Yamaha Tri Moto. 

For those who are new to the sport I will provide the tried-and-tested suggestions that riders should prioritize:

Engine Power-up

The Mikuni carb in the stock model is very inflexible and limits the speed of the vehicle and power output. 

This is the reason why many riders opt for larger carbs and high-performance exhausts like the big Gun 07-1202 Eco ATV Silver Slip-On Exhaust (view on Amazon) to boost the Yamaha 225DX’s performance and power output. 

A Timberwolf 250 engine is one of the most sought-after carb swap options that are suited to expert ATC owners. 

Additionally, the U-joint yoke will snap in just the right way within the 225DX A-arm following minor adjustments. Retrofitting a carburetor to an older large Red can be another possibility.

Flashy Exterior

Due to the age of the 225DX, second-hand units are likely to be quite rusted because of the intensity of use as well as dirt or moisture buildup. 

The good news is that powder coating and hydro dipping can be used to bring the three-wheeler back to its previous beauty. 

The process of preparing the plastics is only two steps. You should be ready to invest between $600 to $1,000 (more in the case of polypropylene-based plastics) should you decide to go with both coating techniques.

Suspension Upgrades

While it was true that the Yamaha 225DX was one of the very first ATCs with a complete suspension system, however, there was lots of potential in this particular area. 

Experienced Tri Moto owners opt for the +3 swingarm, G Force +2 Banshee hubs and Yamahauler rear axle shaft, and YFZ450SE front shocks to enhance the performance of their suspension.

In addition, they pair these improvements with the appropriate tires and other modifications to the front end that makes the whole suspension more durable and suited to rough handling.

Smoking the Competition

Only true blue Yamaha 225DX fanatics would understand and appreciate this joke. Personally, I find it funny that this line of reasoning can summarize the lows and highs of the renowned three-wheeler.

In its prime, it was the small big shot that outdid its 250-cc rivals with its convenience and the performance is provided. 

But, at the same it was infamous for the smoke trail that it was known to leave behind, the issue persists to be a problem with second-hand 225 DX Tri Motos.

Smoking the Competition

The Yamaha 225DX can be described as a general well-mannered trike. It is powerful as well as good suspension figures, and provides a smooth, comfortable ride that is comparable to the Honda ATC 250SX, 200X trikes.

Its shaft drive is outstanding and makes it almost maintenance-free. The handling is excellent, and the 225DX is superior at navigating its way through mud and obstacles than its competitors with larger displacements and would easily outperform the 250SX were it not because of the absence of reverse gears.

On the other hand, the 225 DX can smoke out of control and also have a burned-out main clutch. 

In some secondhand models, the issue will disappear when the vehicle runs more often. If it doesn’t mechanical experts suggest sanding the cylinder, replacing the valves, as well as putting on new valve seals and rings. 

It is also advised to regulate the air-fuel mix (if it is running too heavy) while the process is going on. 

If the issue is more complex you can refer to the sections of the manual that provide detailed ways to solve the issue.

About Yamaha

Yamaha Motor Co., Ltd. (or Yamaha Hatsudoki-Gaisha) is a renowned Japanese company that is known for its personal watercraft as well as motorized vehicles and ATVs. 

It was originally an affiliate of Nippon Gakki Seizo Co., Ltd. The company split from its parent firm in 1955, focusing on manufacturing motorcycles.

Since then it has expanded its offerings to include motorbikes engines, generators, and off-road vehicles, such as the Yamaha 225DX. 

Yamaha hasn’t stopped since then and has become a major player in the automotive industry with more than 52,000 employees worldwide and 132 combined subsidiaries.

Conclusion – Yamaha 225DX Review

It’s Yamaha 225DX may have been one of the least-used ATCs in the history of off-roading. 

However, that didn’t prevent the three-wheeler from breaking new ground and reversing the entire course of the industry towards what it is today. At present, you won’t see any ATVs without an electrical starter.

 Similar to that, the majority of big-bore beasts that excel in their sub-sects come with a shaft drive that helps reduce repair costs and makes maintenance of the vehicle much more simple.

In retrospect in hindsight, in hindsight, the 225DX could have benefitted from an extended production period and additional improvements in its suspension component. 

With the advancements in technology and the nimbleness of the time, it was the “Cadillac of the trails” was of top quality – to the point that it was a challenge to the industry’s top-of-the-line Honda and other ATV makers to change and develop. 

The brief time on Yamaha’s Yamaha 225DX Tri Moto was sufficient to demonstrate its worth as an unrelenting competitor. 

It also proved that Yamaha demonstrated its determination to lead and embrace the future.

How fast is a Yamaha 225DX?

40-60 mph
This carburetor was employed in all models (YTM225DXK/L/N) using the identical #112.5 primary air jetting and the #60 pilot. This contributes to the Yamaha the 225DX’s top speed, which is 40-60 miles per hour (64.3-96.6 km/h, non-official) and max torque of 16.5 Nm (1.69 kgf-m, 12.2 ft-lb) @ 5,500 RPM.

How much is a Yamaha 3 wheeler worth?

Cost of a Yamaha Tri Moto

In the wake of its success and popularity, additional displacements from this Tri Moto series followed entry into the North American market, with costs ranging from $1,299 up to $2,079. Today you can get a used Tri Moto for as low as $225. The highest price of resales for the bike is approximately $2,919.

What is a Yamaha Tri Moto?

The Tri-Moto was the first Yamaha ATV available across the U.S.A. It featured the 123cc two-stroke engine Autolube injectors, CDI ignition system, air intake snorkel, and a five-speed transmission. It was built to be a sturdy vehicle that could be used as a workhorse and also the ultimate recreation vehicle.

Does Yamaha make a trike motorcycle?

A decade after, Yamaha has unveiled the Niken Leaning Multi-Wheel (LMW) motorcycle that also comes with two front wheels and can lean with additional stability. This year’s Yamaha Niken will be the most stylish, fun, and wildest trike we’ve ever ridden.

Where are Yamaha ATV engines made?

Built REAL WORLD Tough in Newnan, Georgia. Yamaha ATVs and Side by Side vehicles are proudly assembled in the USA at our state-of-the-art manufacturing facility located in Newnan, Georgia.

What years did Yamaha make the Moto 4?

While the Yamaha YFM200 started the Moto 4 series, its brother Yamaha Moto-4 350 became the designated Moto-4 model as soon as it was fully produced from 1987, until the year 1995.

What years did Yamaha make the Grizzly 350?

This vehicle, which was manufactured from 2006 until 2013 (for 2007 and 2014 versions), released a total of 35 models and six trims during its lifespan 2WD and 4WD models with a green, blue-black, red and blue finish, as well as 4WD and 2WD Camouflage trims and IRS-fitted versions of the base colors as well as Hunter Green.

What brand ATV is best?

Top 10 All-Terrain Vehicles (ATVs) of 2020
  • 1) Yamaha Raptor 700R. …
  • 2) Yamaha YFZ450R. …
  • 3) Polaris Sportsman 450 H.O. …
  • 4) Honda TRX250X. …
  • 5) Can-Am Outlander 450. …
  • 6) Polaris Scrambler XP 1000 S. …
  • 7) Honda Rancher 4×4. …
  • 10) Polaris Scrambler 850.

Which ATVs are made in the USA?

Polaris, as well as Arctic Cat, are the two ATV brands that mainly produce their products in the United States. Polaris produces the majority of its ATVs and parts at Osceola, Wisconsin, and its headquarters are located in Medina, Minnesota.

Does Yamaha make a good four-wheeler?

With superior performance with all-day comfort and legendary endurance, the Grizzly EPS is the most efficient ATV available in the class. It has been tested off-road and comes featuring a 90cc engine and CVT transmission The Grizzly 90 is the ideal choice for those who ride trails from age 10 and over.

Is Yamaha Grizzly good?

The Yamaha Grizzly 700 is an extremely durable and reliable quad. Thanks to its sturdy frame, it can withstand extreme conditions and reckless riding styles. However, it’s not always perfect. Many owners have experienced problems regarding the Quad.

Yamaha 225DX Specs FAQ

1. How fast is a Yamaha 225DX?

The carburetor was utilized throughout all year models (YTM225DXK/L/N) using the identical #112.5 main and pilot air jet. It also results in the Yamaha the 225DX’s top speed, which is 40-60 miles per hour (64.3-96.6 km/h, non-official) and max torque of 16.5 Nm (1.69 kgf-m, 12.2 ft-lb) @ 5,500 RPM.

2. How fast is a 250R Honda?

It was the Honda ATC250R (or Big Red 250R) was introduced in 1981, and was the first vehicle to increase the foothold of ATCs in the race. It was equipped with Pro-Link suspension an Enduro-Harley-Davidson front design and an impressive 70 top speed of 70 mph The ATC250R was durable and fast.

3. Where is the Yamaha Grizzly made?

From the Yamaha Factory In Newnan, Georgia 30th AnniversaryThirty-years in the making and 3.5 million Yamaha vehicles produced throughout America USA is something to be proud of We’re also anticipating the future in the years ahead as Yamaha continues to invent and create new products for fans of Powersports in the U.S. as well as around the globe.

4. Is Yamaha Wolverine a 4X4?

The Yamaha Wolverine 450 is a fully automated 4×4 equipped with features like lightweight and sporty suspension and inspiration from The Raptor line.

5. How fast will a Yamaha Wolverine go?

Its Yamaha Wolverine 700 top speed is 53 mph when it is the stock model. With modifications, it’s able to be able to keep pace with the 900-cc Polaris RZR. 2020 models come with a 2-mph increase. The stock trim for 2016 will be able to go up to 55 mph when you surpass the limiter, and then put on an engineered sheave.

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