Does anyone know the year of this Yamaha Motorcycle?

Question

I just got an older 70's Yamaha enduro 175 Motorcycle. The engine id is CT1 025118. It is Green. Is there a website where I can figure out the correct year?

Answer 1

If it is the bike pictured here, it's a 1975 model.  A friend of mine had one way back when.  Nice bike.  But my 72 Kawi 175 ran circles around it.

Good luck.

Answer 2

if you look at the 10 letter in the vin number and then call a dealer they can tell you what year it is or you can call the dealer with the engine number.

Answer 3

That's a 1970 CT1-B,,,

2nd year the 175's  were on the market.

They were excellent bikes.

Almost 40 years later,,,if they're in decent condition,,,they STILL are excellent bikes.

There's still quite a few parts available for them,,new & used.

Lots of parts from the 125's,,,and later 125/175's will interchange

Edit:

Just so there wont be any confusion with all the random guessing....

-Actual "CT1" Model Yamahas were Produced in 1969,1970,1971

1969=CT1

1970=CT1B

1971=CT1C

Only in Yamaha Tech Bulletins will you find any refference to "CT1A".

The "A" was added in the refference material to clearly Specify the Distinction of being the 1st CT1 and to Not include subsequent year models.

Otherwise,,often times all the bikes were lumped together.

All 175 Enduros are often Casually reffered to as just CT1's.

NO Official CT1A,,,only a character added for Internal Clarification

1972 & Later Models were No Longer "CT1".

They Changed the model designation to "CT2",and subsequently adopted other nomenclature.

1972 was 1st year of Torque Induction on these bikes,,,aka "Reed Valve"

Yamaha did not adopt  Model Year Code Designation until 1974.

The  Code began with Letter A.

Example:

1974=DT175A

'75=DT1175B

'76=DT175C,

and so on.

Several letters were ommited from the alphabetic sequence.

Which helps Add to the confusion. :)

There is No Year Code designator in the Engine Number of any of the CT1 series.

"B",and "C" are Sequence designations.

They can IMPLY a "year model",,,but are NOT Specifically an Official Year Model designation.

...................

Color

1970 CT1B's were available in  2 colors

Candy Green and

Competition Yellow(VERY seldom seen)

I'm only 99% Certain of the Paint Codes,,

but I 'bleive >

GREEN = "Candy Green">"Code CG"> "#0064"

Yellow= " Competition Yellow"> "Code CPY">"#0026"

.........................................

The "10th Letter"  Year Code is only relevant to 17 Character VIN's.

That system was not adopted until a Decade After your bike was produced.

.........................................

And according to the Engine Number you posted,,

Your bike is a 1970 CT1B.

1969 engine numbers Began at CT1-000101

These were CT1 bikes.

1970 engine numbers Began at CT1-010101

These were CT1B bikes.

1971 engine number Format CHANGED mid-production

Early 1971 "Old Numbers" began CT1-200101

These were CT1C Bikes---and the End of the CT1 Series.

Later 1971 "New Numbers" began CT1-032101

These were the 1st CT2 Bikes.

Tricky being intro'd in '71 & carrying CTI-engine # Prefix,,,as CT2's were  "1972 Models"

1972 engine numbers Began at CT1-065101

These were CT2 bikes

1973 engine numbers began at CT1-100101

These were CT3 bikes.

And the end of the "CT- Series"

1974 into'd the "DT- Series".

The 175's in 1974 became DT175A

Engine Numbers:

1974>DT175A> #443-000101

1975>DT175B>#443-100101

1976>DT175C>#559-000101

---1976 was the Last of the Twin Shock 175's

1977---there was NO "DT175" for 1977.

The IT175 was introduced,,,and was 1st 175 Monoshock

1978>DT175E>#2A7-000101

The DT175 was Back,,,with a Monoshock.

1979>DT175F> #2N5-000101

1980>DT175G> #3J1-000101

1981>DT175H> #3J1-060101

1981 was end of the DT 175 Series

IT175's ran thru 1983.

They were the last 175cc  2 strokes,,,far as I know

.................................

Here's some images of 1970 CT1B.

Do it Look like Yours?

http://www.bikepics.com/yamaha/ct1-175/7...

One other distinction,,,maybe not relevant due to age,modifications,etc.

1969,1970 Had NO Turn Signals

Turn Signals 1st appeared on 1971 CT1C's

Tech Bulletin #253,,,Dated 11/16/70 notes the Change in the Wiring Harnesses to accomodate the Blinkers on "Next Year's Model '71 CT1C"

...............................

If You "got an older 70's Yamaha enduro 175 Motorcycle. The engine id is CT1 025118. It is Green."

That sure sounds like a 1970 CT1B to me.

Answer 4

bike pics is a very good reference point

http://www.bikepics.com/yamaha/

I believe the CT1 was manufactured from the late 60s thru about 1974, the model was replaced with the DT series but there was a year or two overlap ... I don't recall a green model CT1 but had a green DT250 that was either a '73 or '74...

might also look on the steering stem or frame neck (where front suspension attachs/pivots for steering on front of frame) and get a VIN that might give a alpha character that would better define the actual year.  I believe A was 1969, B was 1970, etc...