Barn find R90S

I’m sure you’ve had a hunt around,
Meyer bikes do some forged oversized pistons up to iirc 1 mm over.
Pricey but ……
Shout up if you need the rebores doing,
My chap is old school and he’s being doing stuff for me for 40 years.
I’d not let anyone else do my barrels.
Cheers Mike, I’ll assess everything when the engine is stripped šŸ‘
 
Barrels are now off, definitely will need a rebore due to water damage on one of them. Crank is nice and free, but I’ll be replacing all bearings and seals etc. The left hand barrel had to have a bit of persuasion with a hot air gun and a bit of ingenuity.EDADE3D0-64A6-41A1-B67B-8C015038A5AE.jpeg0066BCF9-FC07-41CB-9E48-DCD42A5FACAC.jpeg
 
Great work.

Really enjoying watch you save this šŸ˜‰
 
I'd be putting stuff on the Donor bike ;)
Then it won’t be a matching number R90S, the only parts I’m using are what would have been on the R90S originally, fork stanchions are the same, indicators, wheels and discs , calipers, speedo housing, I have the speedo and tachometer which are fine, housing is worse for wear, starter motor, if the engine covers are better than mine then I’ll use those. Side panels, the wheels will be stripped and the paint removed to match the original R90S colours. Tyres will be replaced with Michelin Classic tyres.
I have somebody interested in anything I don’t use. There is no V5 with the bike ,just a Nova number, the frame and engine are matching number so there is value there.
 
Your new speedo housing will have the idiot lights in the wrong order for a /6 bike....

Some late R90S bikes came out in non-Daytona/Silver Smoke colours. Are you sure the red is not 'factory'?
 
Your new speedo housing will have the idiot lights in the wrong order for a /6 bike....

Some late R90S bikes came out in non-Daytona/Silver Smoke colours. Are you sure the red is not 'factory'?
The log book has red as the colour, it’s the same shade as my R90/6, so you could be onto something, I’ve never seen a photo of a red R90S, have changed over the housing from my /6 and built a set of gauges using the original S gauges , the only thing I need are new glass and the rubber surrounds,both of which are available from Motorworks.
 
Under the tank you may be able to detect if it is a respray. Also the inside of the side panels, inside faces of the mudguards. If there are any chips to the paintwork you might see an original colour if there was one.

Long shot you could let BMW archives know the VIN number and they might be able to tell you what it left the factory as. Curious, what is the frame number?
 
Under the tank you may be able to detect if it is a respray. Also the inside of the side panels, inside faces of the mudguards. If there are any chips to the paintwork you might see an original colour if there was one.

Long shot you could let BMW archives know the VIN number and they might be able to tell you what it left the factory as. Curious, what is the frame number?
Frame is 4093628 as is the engine number, first Reg 1 / 8 / 76 colour on V5 Red / Black.
 


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