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From: chateau.murray on 18 Apr 2007 12:19
On 18 Apr, 17:19, Rob Kleinschmidt <Rkleinsch1216...(a)aol.com> wrote:
> On Apr 17, 10:17 pm, chateau.murray.takethis...(a)dsl.pipex.com (The
>
> Older Gentleman) wrote:
>

> What airhead boxer do you have, out of
> > interest?
>
> > (As one who has a soft spot for them)
>
> The bike is an '88 R100GS.
>
<snip>

I like them. Have you uprated the front brake? I always found the
single disc a bit terrifying, but here there are billet caliper
replacements.

From: Wudsracer on 18 Apr 2007 12:22
>On Wed, 18 Apr 2007 07:05:50 -0400, "Martin Walker" <sorrycharlie(a)nospam.net> wrote:

>
>"Rob Kleinschmidt" <Rkleinsch1216128(a)aol.com> wrote in message
>news:1176875079.854294.238320(a)y80g2000hsf.googlegroups.com...
>> There are a bunch of places now advertising nikasil repair.
>> Has anybody ever had this repair done ? By whom ?
>> Were you happy with the result ? How much did it cost ?
>>
>> For a 1000 cc airhead BMW twin, it looks like somewhere
>> between $350 - $450 for two cylinders stripped, repaired
>> as needed, plated and brought to spec.
>>
>> I just stumbled into a set of cylinders and am considering
>> this repair.
>>
>
>Rob,
>
>I've used Millennium Technologies for snowmobile cylinders and was very
>impressed with their work. It was about 4 years ago and cost a little over
>$200 per cylinder. The snowmobile is still running well.
>
>http://www.mt-llc.com/index_home.shtml
>
>Martin
>

I have had this done for myself and customers many times on dirt bike
and atv cylinders.

My favorite places for this are Langcourt, Millennium Technologies,
and US Chrome.
Several Dealer friends really tout Millennium.
I favored Langcourt, because their work was equal to the others, and
they had a quicker "turn-around" time.

The cylinder bores will look just like new. (cross hatched to aid in
oil retention in the bore.)

If you have this done, send them the new pistons with the cylinders,
so that the cylinders' bores can be exactly matched to the pistons
(proper clearance between the two).




Wudsracer/Jim Cook
Smackover Racing
'06 Gas Gas DE300
'82 Husqvarna XC250
Team LAGNAF

From: The Older Gentleman on 18 Apr 2007 15:31
Rob Kleinschmidt <Rkleinsch1216128(a)aol.com> wrote:

<snip interesting stuff>

> Dunno if there's anything for a K bike. What about
> just changing the final drive ratio ? If you could live
> with a taller first, this might be easier.

Well, that's the thing: I do like the lower gears. The gearing on the LT
is slightly shorter than it is for the RS so yes, I could just stick an
RS final drive on it.

As it is, it's geared for maybe 135 at the redline, but the engine has
so much torque I could sacrifice a bit of top gear flexibility for a
more relaxed cruise at (say) 85-90.

My last tourer was a Triumph Trophy 1200, which was overgeared - if you
could have got it to the redline in top, it'd have been doing 170 or so.
But again, the engine was super-torquey, and so top gear was a nice
relaxed touring gear.

I'd like to have that attribute on the BMW.


--
BMW K1100LT 750SS CB400F CD250 SL125
GAGARPHOF#30 GHPOTHUF#1 BOTAFOT#60 ANORAK#06 YTC#3
BOF#30 WUSS#5 The bells, the bells.....
From: Rob Kleinschmidt on 18 Apr 2007 20:49
On Apr 18, 12:31 pm, chateau.murray.takethis...(a)dsl.pipex.com (The
Older Gentleman) wrote:
> Rob Kleinschmidt <Rkleinsch1216...(a)aol.com> wrote:
>
> <snip interesting stuff>
>
> > Dunno if there's anything for a K bike. What about
> > just changing the final drive ratio ? If you could live
> > with a taller first, this might be easier.
>
> Well, that's the thing: I do like the lower gears. The gearing on the LT
> is slightly shorter than it is for the RS so yes, I could just stick an
> RS final drive on it.
>
> As it is, it's geared for maybe 135 at the redline, but the engine has
> so much torque I could sacrifice a bit of top gear flexibility for a
> more relaxed cruise at (say) 85-90.
>
> My last tourer was a Triumph Trophy 1200, which was overgeared - if you
> could have got it to the redline in top, it'd have been doing 170 or so.
> But again, the engine was super-torquey, and so top gear was a nice
> relaxed touring gear.
>
> I'd like to have that attribute on the BMW.

It's theoretically possible to cut a gear that will do that and
one or more people are crazy enough to do that for the
airheads. On the airheads, a one tooth difference
bumps the top end gearing by ~ 6%.

You could try Siebenrock and/or S.Meyer-BMW-Motorraeder(a)t-online.de

At Siebenrock, be prepared to wade through some strange
computer generated German->English translations.

Not too surprisingly, there seem to be lots of folks
dealing in exotic BMW parts in Germany.

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