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Discussion Starter · #1 ·
Quick question for you oil-cooled gurus... lol

On my gixxer, the crankcase breather hose extends down the back end of the engine and below the farings on the bottom of the bike, just in front of the rear tire. It pours out exhuast and drips oil as I'm riding, mostly at idle. I don't know where this hose is supposed to go to, but it does have clamps on the end that drops down below the bike so I know it's supposed to go somewhere. Can anyone tell me where this is to go so that it will stop saturating my rear tire with oil and exhaust??!
I've checked in my Clymer but all I can find is a pic of the top of the hose where it connects to the cylinder head cover, and not where the other end goes. Thanks in advance!
 

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Discussion Starter · #2 ·
Basically, since my airbox has been eliminated... I have a breather hose hanging from the bottom of my bike. I've read somewhere where someone had it vent into a small container of some sort somewhere. Anyone have any ideas on this? Thx...
 

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I routed mine to the back........been looking for one of these with no luck....
 

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If you look close below the outside k&n filter you wil see a little red cap. That is a spice bottle[clear plastic] that is zipped tied to the frame rail. The hose comes off the valve cover into the side of the bottle.[you have to cut a hole in the side of the bottle.] Then another hole is cut and a separate hose attached. The last hose is only 3 or 4 inches long. I run a K&N breather filter on top of this hose. What this does is make an oil trap, while still letting it breathe. Its doing the same thing as this bottle pictured in above post.. You only have to take off the end cap [red] and soak out any oil trapped. [image]
[/image]
 

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Discussion Starter · #5 ·
sweet. great idea. that gixxer is soooo nice! i can't wait to get mine back to that condition.

at the moment, there is a lot of smoke that comes out of that tube. right now i have a crankcase breather filter fitted onto the end, but it still smokes and the filter has become the oil trap (NG). I'm going to do something similar... but i still need to get it to not smoke out the bottle so much...
 

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Check my gallery for some ideas on crank breather mods etc.. Even though mine is a water pumper (1993) the concept is the same for oilers (the parts from Earl's are the same).

 

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BC, is that catch can available from Earl's? It is way pimper than the PJ-1 bottle on the Gixxasauras. Troy341
 

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Wow nice looking piece! Here is a faster & cheaper alternative I've built several of. Go to a hardware store & buy a couple of 3" abs plumbing cap's & a piece of 3" pipe. Buy a couple of 5/8" hose barb's. Cut pipe to desired length & glue caps into place. Drill holes for hose barb's at desired angles & at opposite ends of tank. Run hose from valve cover to one side
& place a filter element to the other. You now have a crankcase vent/liquid seperator that look's identical in nature to the picture in first post. I have one laying around if you want pics.
 

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BC, is that catch can available from Earl's? It is way pimper than the PJ-1 bottle on the Gixxasauras. Troy341
Hey, hello there ! No, I wish. Its a custom fab job that fits the setup I've got. Its way over the top for a breather, the typical nonsense I do with this street bike that I'd never waste on an actual track machine
Shit, with Gixxasaurus's pedigree a PJ bottle has track cred
. If I had to do it again and new what I know now, I'd just get one of the circle track racing breathers and adopt it. Hey, live and learn, but I sure enjoyed the learning curve and execution . Though I wish I could fucking well machine.....grrrrrr.
 

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here's mine






the engine vents through as simple catch tank which i made



1) - i used a small alloy bottle ( it used to contain glue or something ) & cut the bottom off.
then i made up a flat disc that fittined snugly inside the cylinder , drilled some holes in it , and secured it inside the end of the cylinder with a small weld.
2) then i fitted the baffle - i used stainless steel wool ( it was actually a pan scraper from the local hardware shop ! ) , and then another disc - smae as pic 1
3) all that was left then was to make up a little cap & spout to finish the other end of the tank off
4) the finished article. - the idea is that the hot (heavily oil laden ) mist is routed from the crank cases to the catch tank , the majority of the oil condenses / separates on the baffle material and eventually returns to the sump. The 'dirty air' is free to escape through to the atmosphere via a small breather filter on the end of the exit tube.



My tuned 1216 motor was a bit of a 'heavy breather' , and my home made system worked very well indeed, there was never any 'liquid oil' at the filter , and the crank cases were effectively vented.
 

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Lee I've said it before and I'll say it again now, that breather system into the oil cover is the shit. Wow. Fab them up for the streetfighters, though cost would be prohibitive to us low budget broke ass sonsabitches. Troy341
 

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Discussion Starter · #12 ·
Lee I've said it before and I'll say it again now, that breather system into the oil cover is the shit. Wow. Fab them up for the streetfighters, though cost would be prohibitive to us low budget broke ass sonsabitches. Troy341

werd
 

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GIXXER PORN !!! I love it I love it!! GReat pics of a beautiful bike
 

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WOW! Great pics! I would relocate the breather hose away from your rear tire or from under the bike, since oil sprays out during "spirited" riding and we would hate to see your bike get hurt. I run the hose to the back, so the oil sprays on my plate and makes it hard to read. Not as nice as the above pics, but cheap.
 

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i rode it like that for over 2 years ( beleive me - most of that was definately 'spirited'
)
including more than a few runs up the strip running an extra 75hp of nitrous ( which greatly increases cylinder pressures and due to a bit of blow-by , upped the crancase pressure also). I never had a problem , and definately never had any signs of oil on the tyre. With over 220bhp on tap in a lightweight 750 chassis , i reckon i would have been the first to notice if there was


The breather system / catch tank did it's job.
 
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