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1975 BMW R90S Restoration

The place to discuss the R 90 S as well as the R90S Worldnet archives!
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skychs
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Arrow

Post by skychs »

Ksiemon ......

Thanks. If the arrow is near the stem hole it shouldn’t be hard to find and I may be able to get to it by just breaking the bead on the tire and looking in.

In regards the rotor bolts .... on my bike they were inserted on the right side of the bike with the nuts on the left. I did note that when I took it apart.

This build has given me new insight to the term “attention to detail”.
1966 R60/2, 1967 R69S, 1975 R90S, 2020 R1250GSA

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ksiemon
Posts: 30
Joined: Sat Mar 09, 2013 11:21 am

Front Wheel /Detail

Post by ksiemon »

Yes That will work so you don't half to pull the tire! Let me know if you need the correct info on your build, will try to help.......been living with mine for 43 years now! Meyer in Germany has the correct wheel weights also.......don't go stick on!

Good luck.....have fun!

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rayburtappraisal
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front forks

Post by rayburtappraisal »

When you removed the fork tubes from the fork clamp, how did you go about it? I was reluctant to "pry" the clamp after I loosened the bolts.



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skychs
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Forks and wheels

Post by skychs »

When you removed the fork tubes from the fork clamp, how did you go about it? I was reluctant to "pry" the clamp after I loosened the bolts.

All I had to do was loosen the bolts ..... then I took a medium size regular screw driver and lightly tapped it into the fork clamp gap to open it just a little bit. The two tubes fell right out.

Today I had the chance to check the front wheel. The arrow was right where you said it would be, around the stem hole. Luckily for me the arrow on the wheel and the front tire were in the same direction. All I had to do was replace the stem plug and fill it up. Im so happy I didn't have to take everything apart again and start over.

The rotors are now on the wheel and snugged up to 18 Ft.lbs.

The only Service/repair/maintenance manual I have is the Clymer BMW R-Series . 1970-1994 M502.

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1966 R60/2, 1967 R69S, 1975 R90S, 2020 R1250GSA

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schrader7032
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I would use a piece of wood

Post by schrader7032 »

I would use a piece of wood as a wedge to open up the gap.
Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.

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ksiemon
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Information

Post by ksiemon »

Drop me call if you want me to email you a scanned copy of the factory stuff. I do also have a Clymer and a Haynes.
The more the better, sometime a person just needs a good picture of what your working on!

Three Zero Eight 227-9871

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skychs
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Progress

Post by skychs »

Progress in the shop today ......

The front end is in ... not all buttoned up but in place and looking good. The front wheel is on. The shocks are in. Calipers and rotors are on. The pads will go in once I get the master cylinder and lines finished. For fun I threw on the front fender. SMILES !!

Here are the photos of the front brake master cylinder. Yuk. Nasty. It all cleaned up so Im not too disappointed. I found some O-rings but I will still need to replace the two seals. I love it when this stuff comes out nasty and ends up looking like new.

Do I paint or powder coat the master cylinder? With brake fluid Im thinking a good powder coat will hold up better.
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1966 R60/2, 1967 R69S, 1975 R90S, 2020 R1250GSA

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skychs
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rear wheel

Post by skychs »

Progress on the rear wheel. It came back from being blasted. Cleans up fairly well but its a PITA polishing it. I slapped the temporary handlebars on it so its now a rolling chassis again with new rubber. Looked funny with the wheel and no tire. :-)

Note: Even the rear wheel has an arrow for direction of roll. Imagine that. Kind-of obvious isn't it?

The plan now is to roll the bike off the lift and start working on cleaning up the engine. Its not too bad but I wanted to do as much as I can before I slide it back in the frame.

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1966 R60/2, 1967 R69S, 1975 R90S, 2020 R1250GSA

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skychs
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Rolling Chassis

Post by skychs »

Certain stages of a rebuild are very memorable. Rolling it out of the garage the first time is one of them. I even got a smile from the wife.

The front brake master cylinder is also back on the bike. If this thing drips as much as one tiny drop of fluid Im upgrading it to the next version. I hate brake fluid. :-)
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1966 R60/2, 1967 R69S, 1975 R90S, 2020 R1250GSA

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skychs
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Motor

Post by skychs »

I have been on vacation so progress has been slow. However, this morning I was able to install the engine. Soooo much easier without the transmission attached. I assume the tranny will go in easy peasy right? Anything Im missing here?

Now its back to work and the R90S sits for another week.

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1966 R60/2, 1967 R69S, 1975 R90S, 2020 R1250GSA

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