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Old 01-24-2012, 05:41 AM   #16
Bill Harris
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250cc, all of 13hp. Gutless, yes, but they have such charm...
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Old 01-24-2012, 07:20 AM   #17
Mike V.
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"Charm" indeed. I'm pretty sure speed or bhp is not the catalyst for this excellent build. This will be a stunning addition to your already impressive herd Renner. Wes knew he was turning this bike over to the right owner.
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Old 01-24-2012, 08:16 AM   #18
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Quote:
Originally Posted by Bill Harris View Post
250cc, all of 13hp. Gutless, yes, but they have such charm...
+1. Definitely following your excellent thread. Pics are great.

Tom
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Old 01-24-2012, 09:38 AM   #19
Bill Harris
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Oops, 18hp, 13kw. A bit less gutless.

Here is a nice Wiki quickie on the R27:

http://en.wikipedia.org/wiki/BMW_R27

Quote:
Maximum speed 81 mph (130 km/h) / with side car 56 mph (90 km/h)
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Old 01-24-2012, 10:49 AM   #20
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There are benefits to owning and operating a modestly powered moto.

Thanks guys.

For the record, BMW lists an optimistic 18 hp at 7,400 rpm.
Unladen weight with full tank is about 356 lbs.
Giving a power loading ratio of nearly 20:1.
Once I hop on, W/P=30+

As a point of reference, the BMW S1000RR runs I think, somewhere around 2.3:1, unladen.

This alone is the single greatest incentive I face today for engaging in a personal weight reduction program.
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Old 01-24-2012, 11:36 AM   #21
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Originally Posted by Beater View Post
The first trip better be to the bar.

I like the way you think.

I'll make a point of it.
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Old 01-24-2012, 05:31 PM   #22
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Originally Posted by davorallyfan View Post
Hmm have you ridden one? They are one of the most gutless bikes ever made.
Quoted off the BMW MOA forum without permission, "When I first got it the top speed was about 50. After plugging some air leaks in the fuel system, running carb cleaner, new spark plug wires and adjusting the carb that is up to about 70."

Not denying your experience but no telling the state of tune of that particular R27.

I'm hoping the lightened flywheel and little bump in compression will give me the edge I need to beat a bicycle out of a parking lot, given a small head start... that I won't be KO'd or buffaloed by the semi behind me when the light turns green.

Consider the bright side, my insurance rates may actually go down.
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Old 01-24-2012, 05:40 PM   #23
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no matter how gutless it may(or may not) be, it will be an awesome bike Renner!
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Old 01-24-2012, 06:21 PM   #24
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manuals, etc.

With the sale of the bike, Wes included some nice literature.



The illustrated parts catalog appears to have seen shop time and covers BMW's '60s lineup.
It's very helpful with fine drawing detail. Shown here is the battery box which mounts below the seat, left side.





Good also to have an original R26/R27 repair manual, the Reparaturanleitung.
I like manuals and have a reproduction of this to work out of.

The repair times pamphlet is interesting.
If I read right, shop time for removing/installing the transmission is 1/2 hour...
I see no reason to introduce unnecessary wear to these pages.




BMW Postwar Models by Roy Bacon has a few images I haven't seen elsewhere.
I'll try to post better examples of them later.









It's good to have a reference library.

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Renner screwed with this post 09-16-2013 at 08:26 PM
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Old 01-24-2012, 06:30 PM   #25
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See that red restoration book by Slabon?
It's out of print. I bought 2 back in the day when they were cheap, (I paid less than $20.00 each)
and just recently put the unread one on Ebay. It went for $150.00 and change.
I oughta make copies of the one that is so well thumbed the pages are falling out.
That price is not uncommon for that book.
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Old 01-24-2012, 06:34 PM   #26
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Originally Posted by Kai Ju View Post
My first bike was a 1954 R25/3 that I bought when was still living in Germany, back in 1972. Bought it for the equivalent of about $15.00. Rebuilt it without restoring it, kinda wish I had brought it with me when I moved to the US.
$15.00!
I'm wishing you'd brought it back to the US too.
Do you have photos you can share?

Mods vs. Rockers ride this Sunday in San Diego, hope you can make it.
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Old 01-24-2012, 06:49 PM   #27
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Originally Posted by wirewrkr View Post
...book by Slabon...Ebay. ..went for $150.00 and change.
crazy what some folks will pay...
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Old 01-24-2012, 07:31 PM   #28
Kai Ju
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Quote:
Originally Posted by Renner View Post
$15.00!
I'm wishing you'd brought it back to the US too.
Do you have photos you can share?

Mods vs. Rockers ride this Sunday in San Diego, hope you can make it.
No, sure don't. I owned for about two years, 1 1/2 of which was before I got my drivers license. Luckily I never got caught.
The R25/3 was the 13 hp wonder. The bike would go faster in third, about 60mph, than in fourth.
Much to everybody's chagrin I'll describe the bike.
It was a Bobber before there was such a thing.
The frame was painted a very loud Ford green paired with a gloss black fuel tank, headlight shell, ears and forks.
Stainless fenders and a brand new stock exhaust. Solo tractor seat, no pillion.
My proudest moment came when I passed the TUV inspection on the first try.

I cut my teeth working on that bike at a friends Yamaha shop in my hometown. (Not to mention translating English language shop manuals to German)

In my defense, you have to remember that back in the 1970's these bikes were the proverbial 'dime a dozen'.
Hindsight is a beautiful thing, ain't it ?

I'm really looking forward to seeing yours when it's done.
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Old 01-25-2012, 04:01 AM   #29
FreeTheBeast
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Thumb Factory book

The blue 3 ring binder is the BMW factory book. That should have everything you need to know. Nice to have!

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Old 01-25-2012, 11:49 AM   #30
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Nice!!
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