Model Name:YDT-1


Model Year:Jan 1963

The body was basically the same as that of the sport model YDS-2. It matched it with the engine of the YD3, a practical use model whose tuning was moderate. It placed much value on its durability and handling.


Engine Type:Air-Cooled 2 Stroke/Parallel Twin Cylinder

Engine Displacement:247cc

Max. Power Output/Rev (PS/rpm):18PS/8500rpm

Max. Torque/Rev (kg-m/rpm):2.4kg-m/4500rpm


Tire Size(Front/Rear):2.75-18·3.00-18

This vintage, classic is one of the MOST ORIGINAL, restored antiques on the road today. Always draws admiring looks and comments as it is driven. Old timers remember their youth and the youth admire this ol’ timer (the bike, not me). It is a great bike to ride to any rally or classic show. It draws lots of attention!

It currently has only 4126.5 miles on it. It is missing a clutch lever my father was worried about it being stolen and we were also in the middle of replacing the ignition over time it just wore out. He has since passed and I haven’t been able to locate the parts. The kick start works and it ran fine two months ago. Honestly the only reason I’m auctioning it off is to help pay for funeral expenses. If I could afford to keep it I would.

You would be hard pressed to find a more original, restored bike that has earned its natural “patina” over the years (60 years old now) and still looks great. Yes, it does have some old age spots, but I felt it was “better” this way. The patina is visible in the pictures. First of all the gas tank is in overall great condition, but the blue paint does have some wear spots as noted on the picture. It also has one small (dime to nickel size) dent on the chrome.

The seat is original and there a smaller hole on the cover on the right side leather. The engine starts immediately with a turn of the key and a push of the button and the 250 cc’s easily move this bike nicely through all the gears. The powerhouse, two-stroke engine (which it was in those days) is quick and can easily attain highway speeds. It does require you to mix your own oil with the gas as it does not have an automatic oiler system (this is good, because the early automatic systems were prone to failure.)

No, it is not perfect, but for a 60 year old that has had no face-lifts or replacements it is about as close as one is going to find anywhere, anytime. Great bike as it is or a great candidate to bring to pristine condition.

The classic Yamaha badges on each side of the gas tank are in wonderful condition and the vintage Yamaha logo can also be noted on the gas cap and on the speedometer.

Go ahead and search for another Yamaha YDT1 of this era and vintage. Check eBay or any other search online and you are likely to come up empty. If you can even find one, it is more than likely a “basket case” or maybe you can happen upon a fully restored model, but good luck on getting something like that without breaking the bank. Take yourself back to 1965 and add the nostalgia of this early classic Yamaha to your collection.

Price: Auction

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Seller's other items: actv-14

Location: Belton, Missouri, United States