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Old 08-25-2010, 09:00 AM   #91
motorcyclemark
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Quote:
Originally Posted by signit98
I hope you did not order these for an R12 motor... they won't work. BOTH sprockets need to have the extra hole for the R12 engine.

If anyone needs help and is in my vicinity, just hit me up... or I try to do my best via email...

These appear to be the same sprockets I received as well, and yes they were ordered for a R1200. So why will they not work for R1200 and what is the purpose of the extra hole?
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Old 08-25-2010, 09:37 AM   #92
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Lennie,

Sent you an email.

ks
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Old 08-25-2010, 10:20 AM   #93
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Quote:
Originally Posted by signit98
I hope you did not order these for an R12 motor... they won't work. BOTH sprockets need to have the extra hole for the R12 engine.

If anyone needs help and is in my vicinity, just hit me up... or I try to do my best via email...
I ordered these for an 1150.
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Old 08-25-2010, 10:47 AM   #94
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After talking to Foster performance, I was assured that these were the correct sprockets for the R1200. The extra hole is for the cam sensor which is only on the right side cylinder. So much for the response if you ordered these for the R1200 they will not work.
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Old 08-25-2010, 11:51 AM   #95
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Quote:
Originally Posted by Sergiok
There's tons of info on that other board...
Thanks, I knew there was more out there somewhere...

Quote:
Originally Posted by motorcyclemark
So much for the response...
These internets are fun...
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Old 08-25-2010, 12:25 PM   #96
signit98
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Quote:
Originally Posted by TrainedChimp
I ordered these for an 1150.
Perfect, the R12 engines need the extra holes in BOTH sprockets... one is for the paddle wheel that helps with the breathing and the other side for the knock-sensor...
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Old 08-25-2010, 12:29 PM   #97
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Quote:
Originally Posted by motorcyclemark
After talking to Foster performance, I was assured that these were the correct sprockets for the R1200. The extra hole is for the cam sensor which is only on the right side cylinder. So much for the response if you ordered these for the R1200 they will not work.
Well, good luck then... funny though when I helped a guy over here install them in his 12ST, in talking to him and explaining the situation with the breather wheel on the left cyclinder, Foster was very apologetic and sent e new set out the next day... WITH HOLES IN BOTH SPROCKETS>>.

Now, you are right, I could be wrong... after all, I have only installed 5 sets so far... that does not make me an expert by any means...

As a solution, you could always leave the paddle wheel out... I am sure BMW only installed that because they had a whole bunch of them laying around and needed to find a way to get rid of them. If your engine does not have the paddle wheel on the left side, you are fine and one sprocket with the hole drilled is ok... but, MANY R12 engines after '05 have the paddle wheel. Older engines have the wheel just sitting on top of the sprocket, the newer ones have a little pin on the wheel, that goes INTO the hole we are talking about.

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signit98 screwed with this post 08-25-2010 at 12:37 PM
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Old 08-25-2010, 01:43 PM   #98
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Quote:
Originally Posted by lennie
motorcyckemark,

Interesting you ordered a set from Foster R&D yet they tell me they are not making sales.

I wonder what is going on?
I ordered at set last week before I heard back from you.
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Old 08-25-2010, 02:15 PM   #99
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1 hole works fine for me

My 2007 GSA paddle wheel does not have any provision for attaching to the sprocket except for the bolt going thru the metal sleeve in wheel. As it happened, I got holes in both sprockets but the one on the left side does nothing. There is no need for the extra hole in the left side sprocket if your paddle wheel is like mine.

Chuck
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Old 08-25-2010, 02:27 PM   #100
signit98
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Quote:
Originally Posted by Hookalatch
My 2007 GSA paddle wheel does not have any provision for attaching to the sprocket except for the bolt going thru the metal sleeve in wheel. As it happened, I got holes in both sprockets but the one on the left side does nothing. There is no need for the extra hole in the left side sprocket if your paddle wheel is like mine.

Chuck
As I said... 2 of the three R12's I have done, needed the second hole... I hope it'll work for him. But there are always solutions...
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Old 08-25-2010, 02:37 PM   #101
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More interesting information.

Trainedchimp,

Your sprockets are from the originals that I made for pre R1200 engines.

As a test for the R1200S and R1200GS, I drilled the one hole per set so that we could see what difference they made.

A couple of Pelican members volunteered and the feedback was good on the results but the hole was only needed for the knock sensor. Seems BMW have changed the paddle wheel.

Adventurrer,

Yes the drilling of the locating pin hole to 3 mm with a carbide bit will make the hole the correct size for a better fit taking all pressure off the spocket.

All sprockets are now drilled for the current batches I have so no further issue.

Mag00,

No worries.

Kilo,

I will get back to you.

I use a new email address but am loathe to publish as I am wary of spam email as I get hundreds per day at the Boxer Performance one.

To contact me direct use lenmor@activ.com.au and use cam sprockets in the subject, or even just BMW.

Regards,

Lennie

lennie screwed with this post 08-25-2010 at 02:44 PM
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Old 08-25-2010, 02:46 PM   #102
motorcyclemark
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I have not opened mine up as of yet however the part# for the ventilation flapper wheel http://www.ascycles.com/Illustrated_catalog/main.html#
shows it to be the same from 04 and up.
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Old 08-25-2010, 02:48 PM   #103
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Quote:
Originally Posted by signit98
Now, you are right, I could be wrong... after all, I have only installed 5 sets so far...
Slacker!
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Old 08-25-2010, 02:59 PM   #104
mag00
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Lennie
The set I got for my 09 r1200gsa only has 1 sprocket with 5 holes the other has 4 will these work or did I get duped by RFK?
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Old 08-25-2010, 03:30 PM   #105
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Sprocket holes

Look at your stock left side sprocket. If it only has 4 evenly spaced holes you only need a 4 holer. My 2007 left side sprocket only has the 4 holes.

Chuck
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