1973 YAMAHA R5C 350

MANDARIN ORANGE & BLACK – CLASSIC 2-STROKE RESTORATION PROJECT – 16,618 MILES

DOES NOT RUN - SOLD AS IS

SOLD ON BILL OF SALE / NO TITLE /ASK ABOUT OUR TITLE PROGRAM

RARE PRE-RD350 YAMAHA R5C | ORIGINAL SEAT | MATCHING PERIOD COMPONENTS | 36 HP 2-STROKE TWIN | BARN FIND | RESTORATION CANDIDATE

Up for sale is a 1973 Yamaha R5C 350, finished in its beautiful factory Mandarin Orange and Black color scheme. This is a genuine vintage Yamaha two-stroke survivor, featuring its original seat, and many original factory components.

The R5 series represents an important chapter in Yamaha's legendary two-stroke history. These motorcycles helped pave the way for the famous RD350 and RD400 series that followed.

This example is showing just 16,618 miles on the odometer and has reportedly been sitting for approximately 30 years. It is being offered AS-IS, non-running, with a seized engine, as a complete restoration project or valuable parts motorcycle.

SOLD ON BILL OF SALE / NO TITLE

If you're a Yamaha enthusiast, vintage two-stroke collector, or someone looking for a rewarding winter restoration project, this classic R5C deserves a closer look.

THE LEGENDARY YAMAHA R5C 350

Before Yamaha introduced the famous RD350 with its reed-valve induction system, there was the R5.

Powered by a 347cc air-cooled, piston-port two-stroke parallel-twin engine, the R5 delivered impressive performance for its era. Factory-rated at approximately 36 horsepower, these lightweight motorcycles were exceptionally quick and helped establish Yamaha's reputation for producing some of the most exciting performance-oriented street motorcycles of the 1970s.

Unlike the later RD350, which utilized reed-valve induction, the R5 features Yamaha's earlier piston-port induction design.

These engines are known for their distinctive two-stroke exhaust note, responsive power delivery, and outstanding performance potential. Install a set of period-correct expansion chambers, and you have one of the most recognizable sounds in vintage motorcycling.

1973 Yamaha R5C Specifications:

• Manufacturer: Yamaha Motor Company

• Model: R5C 350

• Model Year: 1973

• Engine: 347cc air-cooled, two-stroke parallel twin

• Induction: Piston-port

• Factory Horsepower: Approximately 36 HP

• Starting System: Kick-start

• Lubrication: Yamaha Autolube oil injection system

• Front Brake: Drum

• Rear Brake: Drum

• Color: Mandarin Orange and Black

• Odometer Reading: 16,618 miles

• Condition: Non-running restoration project

• Documentation: Bill of Sale Only – No Title Present

ORIGINAL SURVIVOR CONDITION

One of the most appealing features of this particular R5C is its largely original condition.

The motorcycle has the attractive factory Mandarin Orange and Black paint scheme, which is an excellent starting point for either a faithful factory restoration or a preserved-survivor build.

The original seat is still installed, complete with its factory seat base. Remarkably, the seat cover remains in reasonably good condition considering the motorcycle's age and decades of storage.

Many of the original chassis and cycle components remain intact, including:

• Original paint on the fuel tank (presumed to be the original tank on the bike, not 100% sure)

• Original seat and seat base

• Original frame and suspension components

• EXHAUST IS UPGRADED TO A FULL SYSTEM FROM A 1975 RD 350

• Original center stand

• Original side stand

• Footpegs and controls

• Gear shifter

• Factory-style wheel and brake assemblies

• Ignition key included

Visually, the motorcycle does not exhibit obvious evidence of a major crash or severe structural damage. The original frame and chassis provide a solid starting point for a restoration, although a full mechanical and structural inspection is recommended.

EXCEPTIONALLY CLEAN FUEL TANK INTERIOR

One of the highlights of this motorcycle is the condition of its original fuel tank.

Anyone who has restored a vintage two-stroke Yamaha knows how difficult it can be to find an original tank that hasn't been destroyed internally by decades of deteriorated fuel, heavy rust, and sediment.

The inside of this tank appears remarkably clean!

During our inspection, we observed no significant accumulation of debris or heavy contamination in the bottom of the tank. This is a major positive for a motorcycle that has reportedly been sitting for approximately three decades.

The outside of the tank retains its original paint but does have some cosmetic imperfections, including small dents, a crease toward the upper left side, and additional minor dings. The tank badges are also missing.

These issues are typical of a restoration candidate of this age, and the tank is a desirable original component worth preserving.

MECHANICAL CONDITION – PLEASE READ CAREFULLY

THIS MOTORCYCLE DOES NOT RUN. THE ENGINE IS SEIZED AND DOES NOT CURRENTLY TURN OVER.

The motorcycle has reportedly been sitting for approximately 30 years.

We do not know whether the engine seized during its last period of operation or whether it became stuck from prolonged storage.

The engine has not been disassembled to determine the cause or extent of the seizure.

As with any vintage two-stroke motorcycle that has been sitting for decades, the engine should be considered in need of a complete mechanical inspection and potentially a full rebuild.

Fortunately, these classic Yamaha parallel-twin two-stroke engines feature relatively straightforward mechanical construction, making them popular restoration projects among experienced vintage motorcycle enthusiasts.

The buyer should assume the motorcycle will require a comprehensive restoration before it can be safely operated.

KNOWN MISSING PARTS AND RESTORATION NEEDS

For complete transparency, the following items are known to be missing or require attention:

• Ignition-side engine cover is missing. The previous owner reportedly removed it while working on the engine, and it was subsequently lost.

• Autolube oil-injection system cover is missing.

• Original airbox is missing.

• Air filters are missing.

• Airbox-to-carburetor rubber intake connectors are missing.

• Drive chain is missing.

• Fuel tank badges are missing.

• Battery requires replacement.

• Hand levers are bent and will require attention or replacement.

• Fuel tank has several dings and dents, including an upper-left-side crease.

• Engine is seized and will require diagnosis and repair or rebuilding.

• Carburetors, fuel system, brakes, electrical system, and other mechanical components will require inspection and servicing.

• Tires and other age-sensitive components should be considered due for replacement.

Additional parts, repairs, or restoration work may be necessary beyond what is listed above.

This is a project motorcycle being sold in its present, as-is condition. It should not be purchased with the expectation of being immediately roadworthy.

PART OF A SIX-MOTORCYCLE YAMAHA COLLECTION

We recently acquired a collection of six classic Yamaha motorcycles, including this beautiful Mandarin Orange R5C.

The collection includes several desirable vintage Yamaha models, ranging from small-displacement classics to larger street motorcycles and legendary Yamaha enduros.

Here at Kaplan Cycles and the New England Motorcycle Museum, we currently have approximately 240 motorcycles awaiting restoration or mechanical attention, with additional collections continuing to arrive.

As much as we'd love to restore every single motorcycle that comes through our doors, there simply aren't enough hours in the day!

For that reason, we're offering selected motorcycles from these collections directly to the public in their present condition, providing collectors, restorers, and vintage motorcycle enthusiasts an opportunity to acquire classic machines before they undergo extensive restoration.

This R5C is one of those opportunities.

EXCELLENT RESTORATION OR PARTS BIKE

Whether you're planning a complete frame-off factory restoration, building a vintage Yamaha two-stroke street machine, or searching for original R5 components to complete another motorcycle, this bike offers considerable potential.

The original paintwork, desirable factory color combination, original seat, clean fuel tank interior, and surviving factory chassis components make it a worthwhile candidate for someone with the knowledge and resources to bring it back to life.

These motorcycles have become increasingly desirable among vintage Japanese motorcycle enthusiasts, particularly as original examples become harder to locate.

The Yamaha R5 helped lay the foundation for the iconic RD series, and its place in Yamaha's performance history is well established.

For the right enthusiast, this motorcycle represents an opportunity to preserve and restore an increasingly uncommon piece of two-stroke history.

IMPORTANT SALE INFORMATION

PLEASE READ BEFORE BIDDING OR PURCHASING:

• Sold AS-IS, WHERE-IS.

• Non-running motorcycle.

• Engine is seized.

• Full restoration required.

• Odometer displays 16,618 miles; actual mileage is not verified.

• Several components are missing, as described above.

• Sold with a Bill of Sale Only.

• NO TITLE IS PRESENT.

• No warranties are expressed or implied.

• Buyer is responsible for verifying registration, titling, and ownership-transfer requirements in their jurisdiction.

• Please review all photographs and contact us with any questions prior to purchase.

OWN A PIECE OF YAMAHA TWO-STROKE HISTORY!

The 1973 Yamaha R5C is one of those motorcycles that reminds us why we fell in love with vintage Japanese bikes in the first place.

Classic Yamaha styling, bold Mandarin Orange and Black paint, a lightweight chassis, and a high-revving 350cc two-stroke twin that helped define an era of performance motorcycling.

This example needs restoration, but it offers an excellent opportunity to bring an authentic vintage Yamaha back to its former glory.

Don't miss your chance to own this classic 1973 Yamaha R5C 350!

For additional information, please contact Kaplan Cycles / New England Motorcycle Museum in Rockville, Connecticut.

Thanks for watching, and God Bless America!

— Kaplan Cycles / New England Motorcycle Museum

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 by our team.

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.

• 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 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, and we will help make it right.

Kaplan Cycles = we stand behind what we sell.

 That means:
• 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”

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; restoring an as-is project bike sale, 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

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

We do not register pre owned motorcycles. You will receive only the documents required to register your vehicle in your state if they are included.

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 if the motorcycle was advertised with keys, some project bikes have no keys, all restored bikes will include keys

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.