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Yamaha IT 175

Make Model	Yamaha IT 175
Year	1981
Engine	Two stroke, single cylinder, reed-valve inducted
Capacity	171 cc / 10.4 cu-in
Bore x Stroke	66 x 50mm
Cooling System	Air cooled
Compression Ratio	7.9:1
Induction	32mm Mikuni carburetor
Ignition	CDI
Starting	Kick
Max Power	19.86 hp / 14.6 kW @ 8000 rpm
Max Torque	18.47 Nm / 13.63 lb-ft @ 7500 rpm
Clutch	Wet, multi-disc
Transmission	6 Speed
Final Drive	Chain
Frame	Single-downtube, full cradle, chromoly frame, box section aluminum swingarm
Front Suspension	Telescopic forks
Rear Suspension	Monoshock with adjustable damping and pre-load
Front Brakes	Drum
Rear Brakes	Drum
Front Tyre	3.00 x 21
Rear Tyre	4.10 x 18
Wheelbase	1417 mm / 55.8 in
Seat Height	899 mm / 35.4 in
Ground Clearance	290 mm / 11.4 in
Wet Weight	104.1 kg / 229.5 lbs
Fuel Capacity	11 Litres / 2.9 US gal

Yamaha IT175 belongs to the 'International Trial' family of motorcycles, produced during the 1970s and 1980s. The machine is derived from the Yamaha YZ range of competition motocross bikes with modifications for use in competition enduro, hare and hounds and trail riding.

The bike uses an air cooled, two stroke, single cylinder engine with pre-mixed fuel. It is kick start only and features a minimum level of equipment required to allow it to qualify for road certification.

There are three derivations of the machine for the global market. A US & Canada market version, a European version and an Oceanic version for other world markets. The IT175 can be road registered in all these regions.

Other bikes in the IT range include IT125, IT200, IT250, IT465 and IT490.

The IT range was superseded by the WR (Wide Ratio) range of four stroke machines as the popularity of two stroke engines began to wane.