1981 Yamaha IT175 H

This was a project that never got started.
I think that it would have been a much better bike the the IT250 I got in the same deal but, I started on the 250 because it seemed like less work to get running. If I was to do it all over again, I would've started with this guy.

As it was, it got sold off to fund the 250 restoration

1981 Specifications
Type 2-stroke, air cooled, reed valve single
Displacement 171cc
Bore & Stroke66 x 50mm
Compression Ratio7.9:1
Carburation Mikuni VM34SS
Ignition CDI
Starting Primary Kick
Lubrication Pre-Mix 20:1 (I use 32:1)
Transmission 6-speed Constant mesh
Final Drive Chain,
Spark PlugNGK B9ES

Dimensions / Weights
Overall Length 83.5" / 2,120mm
Overall Width 36.8" / 935mm
Overall Height 46.3" / 1,175mm
Wheelbase 55.9" / 1,420mm
Ground Clearance11.4" / 290mm
Dry Weight 207 Lbs / 94 kg

Fuel Tank 2.9 gals / 11 l

Front Tire3.00 x 21
Rear Tire 4.10 x 18
Brakes Front and Rear Drum
Forks 38mm Telescopic Fork w/ 11.8" of travel
Shock Swing arm w/ monoshock & 250mm of travel

Horsepower16.0 @ 7,000 rpm

Coloring White

Items in ITALICS need to be confirmed


Parts Catalog (local mirror)
I also include aftermarket alternatives as I discover / need them.

External Links:
Ebay Listings
Vital source of parts for ancient bikes.

Magazine Articles

Yahoo IT Discussion Group
Questions, answers and discussion from other IT riders.

Factory part numbers for Yamaha's

Straight form the source.

In memory of Speedshop  LP Privateer  LP Racing  Aftershocks  Pirelli

March 28, 2012