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Old 01-20-2013, 12:45 PM   #1
walkingbear OP
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ID this carb

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Old 01-20-2013, 01:34 PM   #2
bmwrench
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Who did that intake port/stub?
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Old 01-20-2013, 02:33 PM   #3
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I like the way they did the valve cover fastener, too... the standard is a stud with a little 10mm nut and washer tucked up behind the head... tough on fat fingers....

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Old 01-20-2013, 02:34 PM   #4
Airhead Wrangler
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Looks like a Mikuni HSR model.
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Old 01-20-2013, 02:58 PM   #5
Big Bamboo
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More eye candy from the same source: http://zelastchancegaragedu78.blogsp...days-2011.html
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Old 01-20-2013, 05:54 PM   #6
Bill Harris
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Question is why-- look how small the exhaust pipe is.

I say it's a bling...

--Bill
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Old 01-20-2013, 06:13 PM   #7
Houseoffubar
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Quote:
Originally Posted by Airhead Wrangler View Post
Looks like a Mikuni HSR model.
Yeah, HSR, or RS model. RS is usually for multi cylinder bikes, so probably HSR
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Old 01-20-2013, 07:42 PM   #8
Big Bamboo
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Quote:
Originally Posted by Bill Harris View Post
Question is why-- look how small the exhaust pipe is.

I say it's a bling...

--Bill
Looks are deceiving, that pipe is way down there (click on the pic):
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Old 01-20-2013, 07:48 PM   #9
Big Bamboo
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Originally Posted by bpeckm View Post
I like the way they did the valve cover fastener, too... the standard is a stud with a little 10mm nut and washer tucked up behind the head... tough on fat fingers....

Those are available from BMW-Bayer: http://www.bmwbayer.de/Cylinder-head...80GS-Basic-Mon
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Old 01-21-2013, 12:23 AM   #10
Bill Harris
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Quote:
Looks are deceiving...
AH, I see that now. Must have been a photographic perspective thingy. And that starter cover/airbox blockoff looks impressive. Neat and tidy job.

Carry on...

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Old 01-21-2013, 04:23 AM   #11
RGregor
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This bike belongs to a friend.

The carb is a Mikuni TM40.
Header pipes are 38mm.
Cover is self made (aluminium cast).
Head modifications are self made.

The valve cover fastener mod is quite usual over here.
You can do the conversion on your own or by modified covers.
Additionally you can insert a threaded bushing into the heads.

RGregor screwed with this post 01-22-2013 at 09:59 AM
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Old 01-21-2013, 11:07 AM   #12
England-Kev
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Originally Posted by bpeckm View Post
tough on fat fingers....

Oh yes!
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Old 01-22-2013, 01:11 PM   #13
supershaft
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The carbs are bling? I wouldn't run those but they do work! I would say the gas line is bling. Braided? No cross over? I have my doubts about the port mods too but you never really know until you try it.

I wonder if people that do that valve cover mod usually strip out the threads? Most that I work on that have that mod still have the nuts on the back side. Kinda ruins the whole point IMO. It actually makes the setup an even bigger PITA IMO.

supershaft screwed with this post 01-22-2013 at 03:52 PM
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Old 01-22-2013, 01:20 PM   #14
Airhead Wrangler
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Originally Posted by supershaft View Post
The carbs are bling?
Maybe not the carbs themselves, but the fact that he went to quite a bit of trouble to polish the hell out of them maybe. TM40s aren't usually that shiny.

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Old 01-22-2013, 01:25 PM   #15
supershaft
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That I knew. I am familiar with those carbs since a lot of people ran them on their Rotax powered short track bikes. Awesome carb on those engines!!
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