|
|
Post by listey on Jan 12, 2018 18:57:37 GMT
Evenin' all.
Do any of you experts know how to identify year of manufacture from frame number?
I'm trying to decode my old dream to see if it's a 77 or 78.
Many thanks.
|
|
|
|
Post by bodie on Jan 12, 2018 19:21:37 GMT
I am no expert but they are from 78 and my mate has one of the 1st 700 made and its number is 20007-- if you look on cms each year they give a range of numbers  |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Jan 12, 2018 20:41:37 GMT
Evenin' all. Do any of you experts know how to identify year of manufacture from frame number? I'm trying to decode my old dream to see if it's a 77 or 78. Many thanks. Try us, Listey. I'm good on SD but not really massively into the dream. But I can try for you. |
|
|
|
Post by listey on Jan 12, 2018 20:46:08 GMT
Back in a bit lads. I'll just fish out the v5...
|
|
|
|
Post by listey on Jan 12, 2018 21:06:54 GMT
Here goes. Registered 7/2/78 S reg
CB250T 2004299
I know the motors been swapped out as it's grown another 150cc at some point in it's murky past.
CB400T E 4030618
I have acquired another 250 kicker motor, number unknown at the mo. Assuming its a dream engine as it has the older cases etc.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Jan 12, 2018 21:47:15 GMT
So are you seeking the age of just the frame?
|
|
|
|
Post by bodie on Jan 12, 2018 21:50:18 GMT
Back in a bit lads. I'll just fish out the v5... Sorry listey thought it was a SD  |
|
|
|
Post by listey on Jan 12, 2018 21:58:12 GMT
As much info as possible really.
Not desperately seeking but curious.
I wondered if there was a build date concealed in the serial numbers, or I could find a table on the internet with numbers corresponding to year but nothing for our twins.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Jan 12, 2018 22:05:58 GMT
Been on CMSNL and according to that info, the first 250 dreams had a VIN that begun 1******.
The info is dubious as it states that the follow up U.K CB250T11 as a 1979 model which is well out. These models had the VIN beginning 200**** according to that.
Vague? Er, yes.
|
|
|
|
Post by listey on Jan 12, 2018 22:29:51 GMT
Yes I tried cmsnl first but found nothing definite.
Any clues as to the engine number starting with a 4?
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Jan 12, 2018 22:40:01 GMT
Any clues as to the engine number starting with a 4? Seems to come back as a 1978 400 Hawk from the U.S:  |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Jan 12, 2018 22:44:15 GMT
|
|
|
|
Post by listey on Jan 13, 2018 0:23:05 GMT
If only these bikes could talk eh?
I wonder when the engine was changed and why.
Did the 250 fail? Was it just not quick enough?
It won't rev cleanly past 4/5000 rpm. I wonder if the ignition has mis-matched parts.
|
|
|
|
Post by bodie on Jan 13, 2018 8:41:51 GMT
I think Ian has run the wrong cdi on one of his bikes with no difference more likely the carbs need a strip and clean mine was similar when I got it! |
|
|
|
Post by listey on Jan 13, 2018 10:20:34 GMT
I think Ian has run the wrong cdi on one of his bikes with no difference more likely the carbs need a strip and clean mine was similar when I got it! Done that Bodie. 👍🏻 Stripped and sonic-cleaned in acetone. Will have a fiddle with it in the spring. It feels like it's running out of sparks. Very definite cut-off, almost like a rev limiter but only under load. It's eventually a resto project but would like it running a1 before strip down and I've insured it again this year so may as well have some fun with it. |
|
