The TDM Specs Page



Specifications according to Yamaha

Overall Length: 85.6"
Overall Width: 30.7"
Overall Height: 49.6"
Seat Height: 31.3"
Wheel Base: 58.1"
Minimum Ground Clearance: 6.3"
Dry weight: 439 lbs

Liquid cooled, 4-stroke, gasoline DOHC
Electric Start
Dry Sump
Wet Clutch
Cylinder arrangement: Parallel 2-cylinder forward inclined
Five valves per cylinder
Two Mikuni BDST38 carbs
Displacement: 849cc
BoreXStroke: 89.5 x 67.5mm
Compression ratio 9.5 : 1
Gas Tank Capacity: 4.76 gallons
Chain drive
Constant mesh 5-speed transmission

OEM tires are tubeless, bias ply
Front: 110/80-18
Rear: 150/70-17

Dual front disc brakes, 298mm discs - floating rotors
Single rear disc brake, 245mm disc

Front suspension: telescopic fork, coil spring, oil damper, 6.3 inches of travel - adj preload and rebound
Rear suspension: monoshock with coil spring and oil/gas damper, 5.51 inches of travel

Dual 35W headlights



Cycle World August 1991:


Claimed power-78 bhp @ 7500 rpm

Claimed torque-58 lb-ft @ 6000 rpm


1/4 mile 11.98 @ 111.94 mph

0-60 3.4 seconds


Weight, tank empty:  479 lb.

Weight, tank full:       507 lb.


Wheel travel front:    6.3"

Wheel travel rear:     5.5"


Measured top speed:      127 mph

Fuel mileage, high/low/avg.:     48/34/41 mpg



I'll get more bike data and post it up here as soon as possible.





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All Items Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005 by their Respective Authors. All Rights Reserved. 

Contents shipped by weight not by volume. Some settling may have occurred during shipping and handling. Batteries not included.

This site last updated (probably in my sleep) on 01/04/05


TIP: Never mind what your manual says, don't bother to check your oil on the centerstand. 

There's no oil there. It's all in the engine, trust me.

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