What is this box for?

[Bigdownut]

Hello newbe here with a 1977 R80/7.
Can anyone please tell me what this box is for? I have noticed on other bikes round cylinder things that look like coils are in its place.

[barryh]

It will have originally been a police bike. The box is a shield to prevent the ignition coils causing interference with the radio.

[Bigdownut]

Thank you mate. Did the s models and police bikes have the 40 kw motor with the 9:1 compression ratio? I have run a check on the engine number and it looks like a s model.

[barryh]

Did the s models and police bikes have the 40 kw motor with the 9:1 compression ratio? I have run a check on the engine number and it looks like a s model.

That I don't know. This is the place I look to date serial numbers. http://www.bmbikes.co.uk/chassispages/e ... sis800.htm

[Bigdownut]

Thanks for the serial number link. Mine is 6025906 which is the s model with the 40 kw 9:1 motor.

[SteveD]

Thanks for the serial number link. Mine is 6025906 which is the s model with the 40 kw 9:1 motor.

10/77 R80/7 ECE
http://www.bmw-z1.com/VIN/VINdecode-e.cgi

[Bigdownut]

Thanks for the serial number link. Mine is 6025906 which is the s model with the 40 kw 9:1 motor.

10/77 R80/7 ECE
http://www.bmw-z1.com/VIN/VINdecode-e.cgi

Hi Steve thanks for the info. Not sure what the ECE means.

[SteveD]

Thanks for the serial number link. Mine is 6025906 which is the s model with the 40 kw 9:1 motor.

10/77 R80/7 ECE
http://www.bmw-z1.com/VIN/VINdecode-e.cgi

Hi Steve thanks for the info. Not sure what the ECE means.

Europe.