173 motor in my Pursang - can anyone tell me anything about it?

[max]

Hi all,

I have just purchased a bit of a bitsa Bultaco Pursang that i am going to restore. 

The motor in it is a 173 prefix (JM-17300036) and when i search on the Cemoto reference page it comes up as a 'MOTOR TRANS TRACK 350'.

https://cemoto.tripod.com/bultaco.htm

Can anyone tell me more about this motor - as in what model it was built for, what the JM stands for and why the slightly odd non-model specific referenece?

Thanks,

Max

Edited December 4, 2023 by max
typos

[max]

37 minutes ago, max said:

Hi all,

I have just purchased a bit of a bitsa Bultaco Pursang that i am going to restore. 

The motor in it is a 173 prefix (JM-17300036) and when i search on the Cemoto reference page it comes up as a 'MOTOR TRANS TRACK 350'.

https://cemoto.tripod.com/bultaco.htm

Can anyone tell me more about this motor - as in what model it was built for, what the JM stands for and why the slightly odd non-model specific referenece?

Thanks,

Max

Please excuse the odd copy at the bottom of my message, won't let me delete it.

 

[lorenzo]

"J" identifies it as 325/340 cc (nominally 350, with 60mm. stroke)

"M" is simply "motor" / engine (as opposed to "B" bastidor / frame no.)

"173" .... I know nothing.

[max]

Thanks Lorenzo. 

If anyone else knows anything about the 173 'Trans Track' reference that would be great.

Thanks,

Max 

[model80]

On 12/6/2023 at 10:07 AM, max said:

Thanks Lorenzo. 

If anyone else knows anything about the 173 'Trans Track' reference that would be great.

Thanks,

Max 

I have seen the 173 Transtrack listed as a 350 Grasstrack and a 348cc Astro Flatracker engine.

In other words it’s quick, real quick!

https://cemoto.tripod.com/list.html

Edited January 13, 2024 by model80