Yamaha DT360: history, specs, pictures

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Yamaha DT 360A
Production 1973
Class Enduro
Predecessor Yamaha RT3
Successor Yamaha DT400
360cc Single cylinder, two stroke, air-cooled
Bore / Stroke 78.7mm x 78.7mm
Compression ratio 6.4:1
Top Speed 83 mph (133 km/h)
Horsepower 32.05 HP (23.9 KW) @ 6000RPM
Torque 25.82 ft/lbs (35.0 Nm) @ 6500RPM
Spark Plug NGK B8ES '74
Battery YUASA 6N4B-2A-3 '74
Transmission Gear box: 5-Speed

Final Drive: Chain

Clutch: Wet multi-plate
Final Drive Chain: 520 `74[1]
Suspension Front: Telescopic forks
Rear: Dual shocks
Brakes Front: Drum
Rear: Drum
Front Tire 3.00-21
Rear Tire 4.00-18
Wheelbase 56.1 inches (1425 mm)
Weight 134.0 kg (wet)
Recommended Oil Yamalube 10w-40
Fuel Capacity 2.38 Gallon (9.00 Liters)
Related Yamaha RT360, Yamaha MX360
Competition Kawasaki F9 Bighorn (350cc)
Manuals Service Manual

The Yamaha DT 360A was a Single cylinder, two stroke, air-cooled Enduro motorcycle produced by Yamaha in 1973. Max torque was 25.82 ft/lbs (35.0 Nm) @ 6500 RPM. Claimed horsepower was 32.05 HP (23.9 KW) @ 6000 RPM.

Overview[edit | edit source]

The Yamaha DT360A was a single cylinder 360cc dual-purpose street and trail motorcycle sold under the Enduro-model family produced by Yamaha in 1974. In fact 1974 was the first and only year of the DT360A and also the final year of the production 360 (351 c.c. engine) series Enduro from Yamaha. Model year 1975 saw the introduction of the very successful DT400. The 360 Enduro series was originally introduced in the third model year of the wildly successful Enduro line in 1970 with the RT1. Yamaha also rolled out a motocross only version as well called the RT1M which came with knobby tires on the front and rear, high rise front fender, a high performance upswept expansion chamber tuned exhaust pipe, different front and rear sprockets geared for racing, a close ratio 5-speed transmission, number plate sans headlight, tailight, keyed ignition switch, tach and speedometer. 1971 saw the roll out of the RT1-B 360 followed in 1972 by the RT2 and in 1973 the RT3 was the last year 360 using the little modified frame and endine design that was originally introduced on the 1968 DT1 250. In 1974 the DT360A received a new frame design with higher ground clearance, longer fork and rear cushion (shock) travel, relocated foot pegs, a longer wheelbase and numerous other improvements most all of which were gleaned from lessons learned by Yamaha's seasoned race teams.

The Yamaha DT360 had adequate ground clearance, raised rear and front fenders, cross braced handle bars, a raised and tucked exhaust system, however the rear utility rack was offered as an option on all of the Enduro models including the DT360A.

Engine[edit | edit source]

A 78.7mm bore x 78.7mm stroke result in a displacement of just 351.0 cubic centimeters.

Drive[edit | edit source]

The bike has a 5-Speed transmission. Power was moderated via the Wet multi-plate.

Chassis[edit | edit source]

It came with a 3.00-21 front tire and a 4.00-18 rear tire. Stopping was achieved via Drum in the front and a Drum in the rear. The front suspension was a Telescopic forks while the rear was equipped with a Dual shocks. The wheelbase was 56.1 inches (1425 mm) long.

1973 - 1975 Yamaha DT 360A[edit | edit source]

1973 - 1975 Yamaha DT 360A 1973 - 1975 Yamaha DT 360A

The DT360A has a new frame longer and heavier than that of old enduro. This bike can go 10 to 15 24 Km (15 mph) faster than last year enduro with less rider effort.

1974[edit | edit source]

Photos[edit | edit source]

  • Starting Engine#: 446-000101

In Media[edit | edit source]

References[edit | edit source]

  1. 2019 Western Power Sports Catalog. Western Power Sports. 2019.