brassmonkey001
I should change this
Are you going to post pics of the airbox breather mod you told me about?
Hey Proff
- Thread starter brassmonkey001
- Start date
BUGGER !!!!!! lost the pics on camera card 
Ask Rob if he can take a couple as he owns the bike now !!
I will consider myself severely bollocked for being so lapsidasical
Ask Rob if he can take a couple as he owns the bike now !!
I will consider myself severely bollocked for being so lapsidasical
I'll do one better than that and post the bits to you if you want them BM 
I'll do one better than that and post the bits to you if you want them BM
What does the mod do?
Stops all the emulsified goo from dripping/running down the two breather tubes (one to each carb) and clogging the jets.
Ah, is it some foam to go over the pipes that go down to the carbs?
Is it needed only if you use mineral oil instead of fully synthetic?
Not that my oil has chance to emulsify
Is it needed only if you use mineral oil instead of fully synthetic?
Not that my oil has chance to emulsify
Ah, is it some foam to go over the pipes that go down to the carbs?
Is it needed only if you use mineral oil instead of fully synthetic?
Not that my oil has chance to emulsify
It's a small Harley style breather that plugs into the end of the pipe as it enters the airbox and replaces the Y piece and pipework from the original breather pipes. I haven't had a single problem with blocked jets and the carbs were very clean when I pulled them apart. The only downside I can see is the oily mist eventually dribbles out of the vent in the back of the airbox and down the back of the gearbox - good for preventing corrosion on the gearbox though and would only be a problem if you want a showroom bike.
The filters like this http://www.jpcycles.com/groups.aspx...12ea&DID=762c6f10-cd18-40d3-996a-d317581c1cbd
Thanks, so if the airfilter box is nice and clean, and the breather is clear, your carbs aren't getting bunged up then the change is just an extra bit of bling. Not that bling is bad ..........
Exactly the opposite John....
it stops all the blocked jets, it takes at least 5000 miles for the filter to start dribbling so then you clean it, no crap in the carbs is a good thing, I've got same mod on my Gertie 80g/s
it stops all the blocked jets, it takes at least 5000 miles for the filter to start dribbling so then you clean it, no crap in the carbs is a good thing, I've got same mod on my Gertie 80g/s
Ok I might be having a difficult day, but isn't it fuel that goes through the jets and air goes through the throttle body? So, for oil to block it'll have to go through the jet the wrong way IYSWIM?
The oil from the crankcase breather drips out of the white breather pipes in the inlet tubes and into the slow running jets at bottom of carb venturi..
the mod stops it happening
..
The oil from the crankcase breather drips out of the white breather pipes in the inlet tubes and into the slow running jets at bottom of carb venturi..
the mod stops it happening
Knew there had to be a simple answer, which is why I didn't know
More bling to buy then, wonder if Thunder has already got one ............ or maybe two
Just been out in cold taking these so I'll post em anyway.
This is my spare engine so no breather mod.
The oil drips out the plastic tube
Down into the carb air tubes. The centre ones into the main jet.
The emulsified goo clogs the main jet in here:-
Of course if you haven't had a problem then don't worry about it
This is my spare engine so no breather mod.
The oil drips out the plastic tube
Down into the carb air tubes. The centre ones into the main jet.
The emulsified goo clogs the main jet in here:-
Of course if you haven't had a problem then don't worry about it
Ta very much 
Looks like you need a new float bowl gasket btw
Looks like you need a new float bowl gasket btw
That IS a new float bowl gasket. One of the new shite Motorworks ones 
Those white breather pipes are the spawn of SATAN
Bloody Merkins made BMW fit them for California and silly BM decided to make them standard
Bloody Merkins made BMW fit them for California and silly BM decided to make them standard
brassmonkey001
I should change this
I'll do one better than that and post the bits to you if you want them BM
That would be great, or I can grab them at Syco's do if you're going?
Thanks Rob.
Thunder
Registered user
Hmm! I can't find them now. They are basically a Harley push in breather. Solos mod will work just as well.
Hmm, this is interesting.
How much of a benefit is this mod exactly, and is it dependent on the type of oil used, if so which one Sin ,Semi or Min??? and do the carbs need altering/tweaking in any way?
It would be beneficial to see a picture or some sort of diagram though.
Also, once fitted do you then remove the white plastic tubes, or just leave them there
Val.
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