By TexasChris - Fri Oct 25, 2019 11:31 am
- Fri Oct 25, 2019 11:31 am
#86208
Hi Y'all,
More of a discussion topic (and some learning for me) than a specific technical question, but...
Of the traditional engine, pre-unit, 4 speed bullets which I understand were manufactured between the 60s and the early 2000s, what (if any) distinguishing features do the engines have? Either external/visual differences and/or internal differences that could date the bike/engine? Obviously engine numbers/VINs will give it away, but that's no fun. And I'm not really interested in body work, accessories or colours...for context...
I've recently finished building this 500, 4 speed, pre-unit...and not much of the stock bike is left. I am thinking about seeing if I can race it in my clubs vintage class next year. The class doesn't have a defined "cut off date" for the age of bikes, but rather a "spirit of the class" rule that is determined by some of the organisers. The age of my motor might not class it as "vintage" but the technology sure would! So I am just interested in the actual differences in the motors from the 60's, 70's, 80's, 90's, etc. I'm not trying to deceive my club or anything, I'd be straight with them if I ever entered.
Just wondering how much of an RE expert you'd need to be to tell the difference between different years of the same model...can anyone date my bike from looking at it???
Looking forward to hearing folk's thoughts,
Cheers,
Chris
More of a discussion topic (and some learning for me) than a specific technical question, but...
Of the traditional engine, pre-unit, 4 speed bullets which I understand were manufactured between the 60s and the early 2000s, what (if any) distinguishing features do the engines have? Either external/visual differences and/or internal differences that could date the bike/engine? Obviously engine numbers/VINs will give it away, but that's no fun. And I'm not really interested in body work, accessories or colours...for context...
I've recently finished building this 500, 4 speed, pre-unit...and not much of the stock bike is left. I am thinking about seeing if I can race it in my clubs vintage class next year. The class doesn't have a defined "cut off date" for the age of bikes, but rather a "spirit of the class" rule that is determined by some of the organisers. The age of my motor might not class it as "vintage" but the technology sure would! So I am just interested in the actual differences in the motors from the 60's, 70's, 80's, 90's, etc. I'm not trying to deceive my club or anything, I'd be straight with them if I ever entered.
Just wondering how much of an RE expert you'd need to be to tell the difference between different years of the same model...can anyone date my bike from looking at it???
Looking forward to hearing folk's thoughts,
Cheers,
Chris