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Discussion Starter · #1 ·
Well, last weekend at our race, it was a mud fest to say the least. Im talkin, so much mud on my helmet, i struggled to keep my head up. Anyway, some how my motor took in quite a bit of dirt and mud. Got around the air filter, or my intake popped off the carb, im not sure witch but the damage was done.

Now idk y, but ktm routed the crank case breather tube into the carb. Bad idea, i think. My air filter was so clogged that the carb started sucking from the breather tube and spitting oil into the carb. Thus mixing with the dirt/mud, and seriously gumming up my carb.

FIX: Im blocking off where the hose went into the carb, and getting a longer hose for the crank case breather tube to route it somewhere out of the way (not sure where yet) and picking up a tiny filter to put in the end of the tube.

Many pro racers do this. Usually the breather tube goes into the air box, and has been known to spit oil all over the air filter. So they use the same remedy.
 

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Already got mine at home ready to install...Uni make them for 5/16", 3/8", 1/2" hoses etc...Wheels Motor Sports has anything you want I happened upon them the other day...any fluids, chemicals, filters etc...nice people also in parts...I ordered the wrong item they cancelled it for me so I could reorder...
http://www.wheelsmotorsports.com/Streetbik...her_Filters.htm

Would you mind letting me know what the size of the hose is I got the 3/8" and the 1/2" Breather Filters hoping one of them would fit...
 

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Already got mine at home ready to install...Uni make them for 5/16", 3/8", 1/2" hoses etc...Wheels Motor Sports has anything you want I happened upon them the other day...any fluids, chemicals, filters etc...nice people also in parts...I ordered the wrong item they cancelled it for me so I could reorder...
http://www.wheelsmotorsports.com/Streetbik...her_Filters.htm

Would you mind letting me know what the size of the hose is I got the 3/8" and the 1/2" Breather Filters hoping one of them would fit...
I would also look into a crank case evacuation valve while I was at it
 

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I would also look into a crank case evacuation valve while I was at it
Help me out with a link...I saw TravisD37 on KTMTalk was making a 'check" type? valve for the crankcase and I know that Moroso makes them for race engines...any link you have would help...how about explaining the evacuator and principle behind it?
 

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Discussion Starter · #6 ·
Already got mine at home ready to install...Uni make them for 5/16", 3/8", 1/2" hoses etc...Wheels Motor Sports has anything you want I happened upon them the other day...any fluids, chemicals, filters etc...nice people also in parts...I ordered the wrong item they cancelled it for me so I could reorder...
http://www.wheelsmotorsports.com/Streetbik...her_Filters.htm

Would you mind letting me know what the size of the hose is I got the 3/8" and the 1/2" Breather Filters hoping one of them would fit...

Its def not 1/2", id say 5/16 or 3/8
 

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so here is the deal:

from the factory, my breather tube was routed by the header. Needless to say, it got a hole burned thru it, and then I had to replace the piston/rings from dirt it motor. How did dirt get in???? Thru hole in breather tube. The check valve looks awesome, thanks!!
 

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Uni crank case filter size is 1/4". Bought mine the other day locally and installed.

this is for the sx anyways.
 
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