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 Post subject: Engine breather pipe
PostPosted: Thu Jan 10, 2013 11:53 pm 
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Joined: Sun Jul 01, 2012 9:23 pm
Posts: 52
Location: UK
model: 750 Sport
year: 1989
Hey guys, I'm in need of a little product knowledge. The thick black pipe on my engine is split at the bottom, my neighbour says its just a breather pipe and I am wondering if anyone knows a good cheap place to get one?

I'm also looking for a replacement screen as mines cracked, and I'm looking for some tarty bits anything I can treat myself too.

Hope everyones ready for the new season, alot of you probably never stopped riding but I'm itching to get back on the big bike.

Cheers, Alex


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 Post subject: Re: Engine breather pipe
PostPosted: Fri Jan 11, 2013 1:17 am 
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paso grand pooh-bah
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Joined: Sat Sep 03, 2005 12:00 am
Posts: 1318
Location: SF Bay Area
model: 750 Sport
year: 1990
Are you still running the stock oil catch tank? The breather line ideally should have a one way valve in the line to keep a negative pressure in the crankcase. Reduces oil leaks and increases power.
Here's an article on crankcase breathers. Big science, or just blowing hot air, or both?
http://bunnbreather.bigblog.com.au/index.do


The screen can be had from Zero Gravity
http://www.zerogravity-racing.com/produ ... php?pn=720
At least its still listed on their site.


Cheers, Phil

_________________
Duc in the Bay
1990 750 Sport x2-Rosso Blanko (900ss copy) & Nuovo Nudo (Scrambler project)
1991 907 -mostly stock
2002 ST4s - Lots of mods.


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