Aircooled engine codes

[billbott]

My pal bought a 1971 Yamaha R5 (350) recently, which has a later model bottom end fitted. We think its from a 250E. Could anyone confirm this - the engine code is 1A2.
Also, would a 250E have electronic ignition or points?
What should the code be on an R5?

Lastly, where is the best place for information on this model - they seem quite rare?
Thanks in advance, Bill.

[gazzatt2]

1a2 is coffin tank rd
post the next 3 digits and i can tell you points or cdi

[billbott]

Jan 14, 2012 17:18:09 GMT 1 gazzatt2 said:

1a2 is coffin tank rd
post the next 3 digits and i can tell you points or cdi

1A2-430***

Cheers Gazzat.

[garyt]

www.aircooledrdclub.org.uk/

r5 engine code is r5

[billbott]

Jan 14, 2012 18:25:39 GMT 1 garyt said:

www.aircooledrdclub.org.uk/

r5 engine code is r5

We thought it was but it seemed too obvious.....

Thanks - have told him to join the aircooled club too.

[gazzatt2]

rd250 F
cdi ignition

[billbott]

Thank you chaps. Karma to you both for your trouble.