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 Post subject: Breather pipes
PostPosted: Sat Mar 18, 2017 1:10 am 
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Joined: Thu Aug 25, 2016 2:22 pm
Posts: 122
Current ride: XB 9 SX
Currently my head breathers are teed together and exit down the back of the crankcases

The gearbox breather is separate and exits near the top of the shock.

Is there any problem with joining them together and all exiting down the back of the crankcases?


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 Post subject: Re: Breather pipes
PostPosted: Sat Mar 18, 2017 8:27 am 
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Joined: Tue Feb 21, 2017 8:28 pm
Posts: 78
Current ride: into the sunset
I have the same issue, I think that would work, I just dont like the idea of an oil/air mix being dumped near my back wheel.....

I think normally both pipes would connect to the airbox which allows the air to blow off and then the oil to drain back (thats how my Triumph works)


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 Post subject: Re: Breather pipes
PostPosted: Sat Mar 18, 2017 8:40 am 
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Joined: Wed May 06, 2009 1:55 pm
Posts: 4378
Current ride: 98 S1W
Location: Perth, not the Scottish one
I don't know, but suspect if that was an OK thing to do we would all be doing it. Could there be an issue with crap going from the headers into the gearbox :?:


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 Post subject: Re: Breather pipes
PostPosted: Sat Mar 18, 2017 10:31 am 
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Joined: Wed May 06, 2009 7:42 pm
Posts: 2666
Current ride: M2 Razorback
Location: Mouth of the Port in the Shire of Hamp
Leave trans one as it is and keep them all separate, the bore size is marginal at best. Take the engine ones high, then to exit as far back as poss. Best set up is with PCB valves in XB rocker covers, you get very little 'spit' out of them this way.
Edit: Sorry, talking Tubers here, a Fueller will confirm what's best for yours...

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'98 M2 Razorback, it's a keeper.


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 Post subject: Re: Breather pipes
PostPosted: Sat Mar 18, 2017 1:02 pm 
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Joined: Fri Oct 10, 2014 5:20 pm
Posts: 7
Current ride: XB9s, ccm, BMW hp2
Location: Staffordshire
viewtopic.php?f=7&t=12364&hilit=Breather+pipes

Is this any good?


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