BMW R45 - an older look

2valve · Post by **2valve** » Sat Oct 31, 2015 5:10 pm

Well at'least the PO used components from european cars. If the parts still work OK , this will save you a small fortune on purchasing new electrics to run the bike .

luca.stere · Post by **luca.stere** » Sun Nov 01, 2015 1:50 am

Well at'least the PO used components from european cars. If the parts still work OK , this will save you a small fortune on purchasing new electrics to run the bike .

I will not keep this parts, I can not trust them because they look crapy and I want to avoid problems. I can buy new aftermarket parts (not OE) for a good price. For exemple I can buy the ignition control module at 30$ and I am sure it will work just fine for the next 50.000km, maybe more.

I have cleaned the engine:

luca.stere · Post by **luca.stere** » Thu Nov 05, 2015 12:26 pm

The engine looks clean inside at a first look. I have inspected the clutch and it's ok, the disk has 6mm thicknes (like a new one). I have found the paint signs on some parts and I have assembled the clutch with this signs at an angle of 120 degrees, exactly how it was before. I have tested the clutch with gearbox mounted and it works perfect.

luca.stere · Post by **luca.stere** » Fri Nov 06, 2015 2:53 pm

I have disassembled the starter for inspection and cleaning. I was lucky and the starter just needed to be cleaned, works perfect.

luca.stere · Post by **luca.stere** » Sun Nov 08, 2015 1:10 am

The geneartor looks good, is not fried and after the cleaning looks like a new one. I have to change the brushes.

2valve · Post by **2valve** » Mon Nov 09, 2015 3:53 pm

Buddy your getting stuck into it.The old bike will be up and running soon the way your working on it. Would be a good idea to check the tension of both springs in the brush holder when fitting the new brush's, just in case one has soft tension.

luca.stere · Post by **luca.stere** » Thu Nov 12, 2015 11:46 pm

Buddy your getting stuck into it.The old bike will be up and running soon the way your working on it. Would be a good idea to check the tension of both springs in the brush holder when fitting the new brush's, just in case one has soft tension.

Yes, I hope until march 2016 it will be ready.

jphilipc · Post by **jphilipc** » Tue Dec 01, 2015 5:20 pm

I'm new to this forum. I've had three airheads--a 1949 R50/2, a 1964 R60/2 and a 1968 R60US. I just bought a 1977 R80/7. I have never heard of an R45. What year was it built?

Also----All my older airheads were 6 volts and were kick start only.
My R80 is 12 volts and only electric start. Does this R45 have only an electyric starter?
Thanks,
Phil

schrader7032 · Post by **schrader7032** » Wed Dec 02, 2015 7:23 am

Phil -

Read about the R45 here:

http://www.bmbikes.co.uk/specpages/R45.htm

It should be very much like your R80/7 with twin shocks. It was also largely produced for the European market...I'm sure some floated to the US but that would be very few.

And is that R50/2 you have from 1949 or 1959?

luca.stere · Post by **luca.stere** » Thu Dec 03, 2015 12:33 am

From what I know BMW R45 has only electric starter but I am not a BMW expert. If you want to verify something a good way to do that is to acces the www.realoem.com catalogue.

Vintage BMW Motorcycle Owners

BMW R45 - an older look

Hybrid engine

I will not keep

The engine looks clean inside

I have disassembled the

The geneartor looks good, is

Hi

Yes

R45 questions

Phil -Read about the R45

From what