1973 YAMAHA AT3 125 ENDURO

STUNNING FRAME-OFF RESTORATION

ONLY 1,003 MILES – ELECTRIC START – BRIGADE BLUE

COLLECTOR QUALITY!

A SPECTACULAR 53-YEAR-OLD YAMAHA CLASSIC! FULL NUT-AND-BOLT RESTORATION! EXTREMELY LOW MILES! RARE SURVIVOR!

Feast your eyes on this absolutely stunning 1973 Yamaha AT3 125 Enduro, a beautifully restored example of one of Yamaha's most iconic early 1970s street-legal two-strokes!

Finished in its gorgeous factory-correct Brigade Blue, this 53-year-old classic has undergone an extensive, no-expense-spared, frame-off restoration. The result is an exceptionally beautiful, mechanically sorted, collector-quality Yamaha that looks like it just rolled off the showroom floor in 1973!

Showing approximately 1,003 miles, this motorcycle spent many years in a private collection before receiving a comprehensive nut-and-bolt restoration.

Finding an AT3 this clean is extraordinarily difficult. Finding one with such low mileage, its original street equipment intact, and this level of restoration is something truly special.

This is not your average vintage Yamaha Enduro. This is an outstanding investment-grade-quality restoration intended for the serious Yamaha enthusiast, vintage motorcycle collector, or someone who wants to relive the golden age of motorcycling.

THE LAST OF THE AT SERIES – A TRUE YAMAHA CLASSIC

The 1973 Yamaha AT3 represents the final chapter of Yamaha's legendary AT-series 125cc Enduros before the subsequent DT125 designation.

These motorcycles helped define an entire generation of riding.

For a young man growing up in the early 1970s, owning one of these was the ultimate ticket to freedom!

You could ride it to school during the week, strap your gym bag or lunch onto the factory luggage rack, and head out for adventure after class.

On the weekends, you could put your sweetheart on the back, ride down to the beach, meet your friends at the local sand pits, or explore the trails.

Unlike a dedicated dirt bike, the Yamaha AT3 came equipped with everything needed for street use:

• Factory headlight and taillight

• Front and rear turn signals

• Speedometer and tachometer

• Electric starting system

• Passenger footpegs

• Rear luggage rack

• Street and trail capability

• Yamaha's legendary oil-injected two-stroke engine

These little Yamahas were practically bulletproof, and that's exactly why so few beautiful originals survived.

Most were ridden hard, crashed in the woods, stripped of their lights and turn signals, and eventually worn out.

Not this one!

This remarkable example survived with its beautiful original components intact, spent many years in a private collection, and shows approximately 1,003 miles.

Its exceptional preservation made it the perfect candidate for a comprehensive restoration.

And that's precisely what it received.

COMPLETE FRAME-OFF, NUT-AND-BOLT RESTORATION

This motorcycle was completely dismantled, right down to the bare frame.

The engine was removed, the chassis disassembled, and each component individually evaluated, refinished, polished, painted, plated, or replaced as necessary.

The frame was professionally sandblasted and powder coated in its original black finish.

The fuel tank received a beautiful repaint, a spectacular deep blue with an almost purplish tint that perfectly captures the styling of the early 1970s.

The original-style tank graphics were applied, and the paintwork and overall fit and finish are absolutely outstanding.

The oil injection tank was refinished, and the rear fender was repainted in its original metallic silver.

The attention to detail throughout this restoration is extraordinary.

CHASSIS, PAINT & COSMETIC RESTORATION

• Complete frame-off restoration

• Frame professionally sandblasted and powder coated black

• Fuel tank interior thoroughly cleaned and restored

• Oil injection tank professionally repainted

• Rear fender refinished in factory-correct metallic silver

• Original chrome wheels beautifully preserved

• Wheel hubs vapor honed and refinished

• Original aluminum brake backing plates polished

• Original exhaust system beautifully restored

• Original exhaust baffle retained

• Factory exhaust nameplate in exceptional condition

• Original rear shocks beautifully preserved

• Factory passenger pegs retained

• Rider footpegs and brake pedal refinished

• Kickstand refinished

• Hardware individually polished, painted, plated, or restored

• New seat cover installed

• Brand-new rear drive chain with gold finish

• Black rear sprocket

• Original-style chain guide beautifully preserved

Everywhere you look, the quality of this restoration speaks for itself.

The original chrome rims are gorgeous. The aluminum components shine. The restored black chassis provides a stunning contrast against the deep blue fuel tank and silver fender.

The level of detail is remarkable for a motorcycle of this vintage.

BEAUTIFULLY RESTORED FRONT END & CONTROLS

Take a close look at the handlebars, controls, headlight, and front suspension.

These are the areas where most vintage Enduros show decades of abuse, corrosion, and wear.

On this machine, they look absolutely spectacular.

• Beautiful original chrome handlebars

• Brand-new mirrors

• Brand-new handlebar grips

• Exceptionally clean clutch and brake levers

• Pristine original speedometer and tachometer

• Beautiful original ignition switch

• Excellent chrome hardware and fasteners

• Beautiful headlight bucket and chrome headlight ring

• Restored and polished aluminum fork lowers

• Brand-new fork seals

• New fork rubber components

• Steering stem bearings serviced during restoration

• Original front and rear turn signals in outstanding condition

The condition of the gauges is especially impressive. The faces, bezels, and surrounding hardware look exceptionally fresh.

The fork hardware, headlight hardware, and chrome trim have been meticulously restored.

It is extremely difficult to find these components in this condition after more than five decades.

FULLY SERVICED 125CC TWO-STROKE ENGINE

The engine received the same meticulous attention as the chassis.

Yamaha's air-cooled, oil-injected 125cc two-stroke was one of the great little engines of its era, combining simplicity, dependability, and the unmistakable sound and character that made these motorcycles so popular.

The engine produces approximately 130 PSI of compression, an excellent reading reported during our inspection.

MECHANICAL RESTORATION & SERVICE

• Engine removed during complete frame-off restoration

• Engine cases vapor honed

• Engine side covers beautifully polished

• Cylinder restored and refinished

• Carburetor completely rebuilt

• Fuel tank interior cleaned and serviced

• Fuel system thoroughly inspected

• Airbox restored

• Brand-new air filter installed

• Intake components cleaned and polished

• Original exhaust system restored

• Original exhaust baffle retained

• Brand-new battery installed

• Electric starting system fully operational

• New gold-finish drive chain

• New front and rear Enduro tires

• New inner tubes front and rear

• New rim strips front and rear

• Fork seals replaced

• Steering stem bearings serviced

• Complete motorcycle reassembled and test ridden

The bike has been thoroughly gone through and rides beautifully.

The engine starts, runs, and sounds fantastic.

And one of the coolest features of this vintage Yamaha is its factory electric starter!

That's right — this 1973 two-stroke Enduro came equipped with electric start.

With a brand-new battery installed, the electric starter works exactly as intended.

It is a wonderful convenience feature that makes this classic Yamaha even more enjoyable to own and ride.

EXCEPTIONALLY LOW MILEAGE – APPROXIMATELY 1,003 MILES

This beautiful Yamaha spent many years in a private collection and shows just over 1,000 miles.

The odometer had just rolled past the 1,000-mile mark during our test riding.

Look closely at the brake components, footpegs, exhaust system, handlebars, original turn signals, and surviving factory hardware.

These are the components that typically suffer first when a motorcycle is subjected to years of hard off-road riding.

The original street equipment remains beautifully intact.

This AT3 presents as an exceptionally well-preserved, lightly used survivor that benefited from a meticulous restoration rather than a worn-out machine rebuilt from a collection of damaged parts.

Approximately 1,003 miles indicated at the time of filming and inspection.

BRAND-NEW PERIOD-CORRECT ENDURO TIRES

The motorcycle rides on a brand-new set of classic-style Enduro tires, with tread patterns closely matching the original tires fitted to these bikes.

Both wheels also received new inner tubes and rim strips.

The original chrome rims are in gorgeous condition, and the restored hubs and polished aluminum brake backing plates complete the beautiful period-correct appearance.

The tires give this Yamaha the classic dual-purpose look that made the early Enduro series so recognizable.

PERIOD-CORRECT PRESTON PETTY FRONT FENDER

One tasteful modification separates this motorcycle from a completely factory-stock restoration.

It features a Preston Petty Mudder front fender, a classic, period-correct aftermarket accessory.

Preston Petty fenders became extremely popular during the golden age of off-road motorcycling because they were lightweight, flexible, and far more resistant to crash damage than conventional metal fenders.

We love the look of this upgrade on the AT3.

It gives the motorcycle an authentic 1970s Enduro appearance while improving practicality.

For the purist who wants an entirely factory-stock presentation, reproduction or replacement original-style fenders can be sourced and refinished to match.

Other than this period-correct front fender upgrade and the documented restoration and service replacements, the motorcycle retains its original-style appearance and equipment.

WHAT DOES A RESTORATION OF THIS QUALITY COST?

Restoring a motorcycle to this standard requires an extraordinary amount of time, craftsmanship, and financial investment.

A frame-off restoration of this caliber involves approximately 80 hours of professional labor.

At our shop rate of $150 per hour, that represents:

$12,000 IN LABOR ALONE!

And that is before accounting for:

• Paintwork and body refinishing

• Powder coating

• Vapor honing

• Chrome and aluminum polishing

• Mechanical components

• Replacement parts

• Tires, tubes, and rim strips

• Electrical components

• Consumables and restoration supplies

When you consider the labor, materials, parts, and craftsmanship involved, the investment required to recreate a motorcycle to this level is substantial.

This Yamaha has already received that investment.

For the next owner, the difficult, time-consuming, and expensive restoration work has been completed.

You get to enjoy the finished product.

A SHOWPIECE YOU CAN ACTUALLY RIDE!

Imagine taking this beautiful AT3 to AMA Vintage Motorcycle Days at Mid-Ohio.

It would look right at home surrounded by some of the finest vintage motorcycles in the country.

You could display it proudly, ride it around the grounds where permitted, enjoy its classic two-stroke character, and take it out for a leisurely ride afterward.

It would also make a wonderful addition to a serious Yamaha collection, a vintage motorcycle display, or a private motorcycle museum.

But this machine is far more than something to admire.

It represents the freedom, adventure, and excitement of the early 1970s.

For someone who owned one of these as a teenager, this motorcycle is a time machine.

For a younger enthusiast, it is an opportunity to experience one of the motorcycles that helped establish Yamaha's legendary Enduro reputation.

And for a collector, it is an exceptional example of a disappearing breed.

This is the kind of motorcycle you buy, preserve, enjoy, and eventually pass down to the next generation.

A true family heirloom.

1973 YAMAHA AT3 – HIGHLIGHTS

YEAR: 1973
MAKE: Yamaha
MODEL: AT3 Enduro
ENGINE: 125cc air-cooled two-stroke
COLOR: Brigade Blue
MILEAGE: Approximately 1,003 miles indicated
RESTORATION: Comprehensive frame-off, nut-and-bolt restoration
COMPRESSION: Approximately 130 PSI
STARTING: Factory electric start, fully operational
TIRES: Brand-new classic-style Enduro tires
WHEELS: Beautiful original chrome rims
EXHAUST: Restored original system with original baffle
SEAT: Newly recovered
FRONT FENDER: Period-correct Preston Petty Mudder
CONDITION: Exceptional collector-quality restored motorcycle

AVAILABLE NOW AT KAPLAN CYCLES!

Opportunities to purchase beautifully restored, extremely low-mileage early Yamaha Enduros like this are becoming increasingly rare.

Most were ridden hard, modified, damaged, or simply used up decades ago.

This motorcycle stands apart because of its exceptionally low indicated mileage, remarkable preservation, extensive restoration, gorgeous factory-correct paintwork, and outstanding mechanical and cosmetic condition.

We can assist with financing and nationwide shipping, including delivery directly to your door.

For more information, additional photographs, or assistance purchasing this motorcycle, contact our sales team.

KAPLAN CYCLES

CALL: 860-454-7024

WEBSITE: www.KaplansCycles.com

Ask for Ken Jr. and our team will be happy to assist you.

We also invite you to visit our New England Motorcycle Museum and Kaplan Cycles dealership, home to an extraordinary collection of vintage motorcycles along with an extensive inventory of new motorcycles from multiple manufacturers.

Check out our website to see more of our current inventory and classic motorcycle offerings.

DON'T MISS YOUR OPPORTUNITY TO OWN ONE OF THE NICEST 1973 YAMAHA AT3 125 ENDUROS YOU'LL FIND!

This is much more than a restored motorcycle.

It's a beautifully preserved piece of Yamaha history, a reminder of a simpler time, and a spectacular example of the motorcycle that gave an entire generation the freedom to explore.

Thanks for looking, and God Bless America!

— Kaplan Cycles / New England Motorcycle Museum

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WHY SHOULD YOU BUY FROM KAPLAN? WHAT DO YOU GET?

“You are buying from the Kaplan Cycles Family. We are not just another big auction house. We are family-owned and operated and have been buying, servicing, and selling motorcycles since 1975. You will work directly with Ken Jr., Ken Sr., and/or one of the 30+ experts on our team. We provide museum-quality, white-glove concierge service from start to finish. Every motorcycle we sell is inspected, serviced, and supported by our team, and we stand behind it after the sale. You’re not on your own — we back what we build and what we sell.

With over 17,000 units sold and still 100% positive feedback, we are the best stress-free buying experience you can have. From the first call to delivery at your door, we will handle it all — because vintage motorcycles deserve support, and so do you.

With every bike we curate you get:
• museum-level inspection & preservation services
• every machine is professionally evaluated, serviced, & rotisserie detailed
• all critical systems are checked, adjusted, or renewed
• you get professional setup, tuning, and delivery prep
• done by the best experts in the industry — we ride and restore every day
• you get post-sale phone support
• you get white-glove, insured, always-enclosed shipping to your door anywhere in the country

You’re buying from Kaplan Cycles at the New England Motorcycle Museum, one of the largest vintage motorcycle collections in North America. Free museum tours and tickets are included with every bike sold. With every bike you purchase, a portion of the proceeds is used to support, continue, and improve the 501(c)(3) nonprofit New England Motorcycle Museum.

You don’t just win an auction — YOU are creating & helping to preserve motorcycle history, and you become part of our family, a Kaplan Cycles client for life.

We do not take new clients off the street.
We do not service bikes purchased elsewhere.
We only take new exclusive clients who purchase a motorcycle from us.

You get a guided purchase experience with, and from, the experts who care about the bike as much as you do. If there’s a problem, you don’t get ghosted. You call us — you will have our cell phone numbers — we will answer your call on weekends, and we will help make it right.

Auction platforms = listing only. No support. No accountability.

Kaplan Cycles = we stand behind what we sell.

You are buying museum-curated provenance. That means:
• expert evaluation
• documented condition
• professional presentation
• long-term preservation mindset

You’re not just buying a motorcycle — you’re buying a curated piece of motorcycling history.

From the #1 family in this business — Kaplan Cycles & the New England Motorcycle Museum.

Sincerely,

Ken Kaplan Sr.
12/28/2025”

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AUCTION TERMS:

All motorcycles & vehicles are sold as-is where-is.

Kaplan Cycles guarantees all motorcycles are as-described. Please read the entire description and watch the entire video before bidding.

A non-refundable deposit is due immediately on purchase. PayPal or Credit Card is accepted for the deposit.

Cash (In-Person), Card (+3% fee), or Wire Transfer are our only accepted forms of final payment.

Full payment must be made within 7 days of auction close.

Your motorcycle must be picked up within 30 days of auction close. 

Exceptions are made only for international buyers OR buyers who have ALREADY made transport arrangements with a third party.

If a motorcycle is purchased and left here for longer than 30 days without written permission from Kaplan Cycles it will be resold. In the case of a re-sale, the owner will be entitled to a refund less storage fees ($25/ day beginning 30 days from auction close) ONLY if the motorcycle was paid in full on-time within the auction terms.

We always describe our motorcycles as accurately as possible.

You are purchasing a classic motorcycle. Even in cases where a bike may be in good running/ operating condition, new problems & idiosyncrasies can arise over-time from sitting or regular use.

If you have an issue with the motorcycle you’ve received, contact us within 24 hours of delivery and before leaving feedback so that we can address your concerns.

It is important you have at least a basic mechanical knowledge before purchasing and operating a classic motorcycle.

Due to our backlog, we cannot perform any additional service work or modifications on your motorcycle after the sale (ie; adding a light kit, different tires, etc.)

We respond quickly between the hours of 9am and 5pm EST, Monday - Friday

For our fastest service please call Ken Kaplan Jr directly at 860-471-0192

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We will not charge out-of-state buyers sales tax.
Out of state residents will pay sales tax with their DMV. 

We are not a registering dealership. You will receive only the documents required to register your vehicle in your state.

In our listings, title status is always listed directly below the main description.

In some cases we will sell motorcycles without title or registration. In these cases we guarantee all motorcycles sold are free and clear. We will always provide a route to obtaining title. Generally in these cases, the motorcycle will be sold at a discount to accommodate expenses involved.

Documents are mailed via USPS priority mail with a tracking number. Please allow up to 14 days after payment in full for your documents to be processed and mailed.

Keys will be shipped with the motorcycle.

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Warranty:

All Motorcycles sold "as is, where is" and Kaplan Cycles does not warranty any motorcycle sold. No express warranty and/or implied warranty are made by Kaplan Cycles. No statements by us give an implied warranty.

SHIPPING:

SEND US YOUR ZIP FOR A SHIPPING QUOTE!
WE WILL MAKE ALL ARRANGEMENTS!

We have the best shipping contacts in the nation who will provide the FASTEST transport times, have a perfect track record, and are always insured and ENCLOSED! All motorcycles are shipped WHOLE (roll-on, roll-off). We do not offer a pallet or crate service.

International shipping specialist contacts are available! They will assist in ground freight, customs clearance, and ocean freight to your country. International buyers will be required to work directly with our third party shipping contacts.

We strongly recommend you insure your motorcycle at the time of purchase.

PICKUP:

We require a 24 hour notice prior to pick-up. Please call us at 860-454-7024 during office hours Monday – Friday 9am – 5pm EST.

We will provide ramps, a dock for loading, and assistance to load for free.