Breather tube length

woodlandsprite · 05-16-2015, 11:54 PM

So... Just how long is the breather tube supposed to be? Because mine seems to dangle a good 3 inches or more out the bottom of the bike. It just looks kind of odd dangling there.

SpudRider · 05-17-2015, 12:08 AM

Quote:

Originally Posted by woodlandsprite

So... Just how long is the breather tube supposed to be? Because mine seems to dangle a good 3 inches or more out the bottom of the bike. It just looks kind of odd dangling there.

Actually, longer is better than shorter, since it is more likely to vent to the ground, rather than the motorcycle. However, if you wish, you can safely trim several inches from the tube.

Weldangrind · 05-17-2015, 01:21 PM

Agreed. I'd leave it alone.

Inroads · 05-17-2015, 04:44 PM

I've had an inch or two of fuel/oil that I've dumped in my break-in.

SpudRider · 05-17-2015, 05:06 PM

I think we might be talking about two different vent hoses.

The crankcase breather tube is located at the front left side of the engine. It collects excess oil which is vented from the engine. I definitely wouldn't tamper with any of the hoses in that assembly.

However, there is another vent hose which descends behind the swingarm bolt, near the lower shock linkage. I haven't traced it back to its origin, but I think this hose vents the evaporative canister.

I believe this is the hose Sprite was inquiring about, and it is the hose I have been discussing.

oldqwerty · 05-17-2015, 05:57 PM

Obviously, Sprite, your Cyclone is a male, which would make it a himicane.

woodlandsprite · 05-17-2015, 06:16 PM

Quote:

Originally Posted by oldqwerty

Obviously, Sprite, your Cyclone is a male, which would make it a himicane.

Well if it is a he, his bits are at risk for getting abraided if he insists on dangling them so far below the rest of the bike! It's positively indecent, I tell you!

oldqwerty · 05-17-2015, 07:46 PM

Quote:

Originally Posted by woodlandsprite

Well if it is a he, his bits are at risk for getting abraided if he insists on dangling them so far below the rest of the bike! It's positively indecent, I tell you!

TMI!

woodlandsprite · 05-17-2015, 07:58 PM

Quote:

Originally Posted by oldqwerty

TMI!

I'll spare you a photo then

rjmorel · 05-21-2015, 02:41 PM

Nothing wrong if you own a zong with a ding don....... Oh never mind. rj

jimjr21 · 05-22-2015, 10:18 AM

The center tube is the overflow from the fuel tank fill cap

Scrami71 · 07-01-2015, 12:46 AM

Quote:

Originally Posted by Inroads

I've had an inch or two of fuel/oil that I've dumped in my break-in.

Inroads,you said you had fuel/oil in your crankcase exhaust tube? Did you ask CSC about it. If so what did they tell you. Also has it happened again?

rjmorel · 07-01-2015, 02:25 AM

I also had 1-2" of oil in crank case vent tube when bike was first new. I called CSC and they said to just take the black plug in the end out and not worry about it and let it vent away. I took the plug out and drilled a 1/16" hole in it and reinstalled it back in the tube end. My reasoning is if I ever got into a water crossing that could reach the tube the plug could stop most of the water from filling the tube but it can still vent ,drain out all the time so I don't see the 1-2" of oil being built up any more. rj

SpudRider · 07-01-2015, 02:40 AM

The plug is there so you can retain the oil for safe environmental disposal. You can remove the plug and add the oil from the tube to the dirty oil you collect every time you change the engine oil.

05-16-2015, 11:54 PM	#1
woodlandsprite Join Date: Apr 2015 Posts: 366	Breather tube length So... Just how long is the breather tube supposed to be? Because mine seems to dangle a good 3 inches or more out the bottom of the bike. It just looks kind of odd dangling there.
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05-17-2015, 01:21 PM	#3
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Agreed. I'd leave it alone. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
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05-17-2015, 05:06 PM	#5
SpudRider Join Date: Jul 2008 Location: Idaho Posts: 25,054	I think we might be talking about two different vent hoses. The crankcase breather tube is located at the front left side of the engine. It collects excess oil which is vented from the engine. I definitely wouldn't tamper with any of the hoses in that assembly. However, there is another vent hose which descends behind the swingarm bolt, near the lower shock linkage. I haven't traced it back to its origin, but I think this hose vents the evaporative canister. I believe this is the hose Sprite was inquiring about, and it is the hose I have been discussing. __________________ Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894
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05-17-2015, 05:57 PM	#6
oldqwerty Join Date: Mar 2015 Location: in a truck Posts: 116	Obviously, Sprite, your Cyclone is a male, which would make it a himicane. __________________ "Thou shall not Zong" is not a commandment.
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05-22-2015, 10:18 AM	#11
jimjr21 Join Date: Oct 2014 Location: Raymore, MO Posts: 93	The center tube is the overflow from the fuel tank fill cap __________________ Currently In the garage in various states of running (or not) order 2015 Rx-3 super speedy blue 2003 BMW F650GS 2001 H-D V-Rod 1999 Ducati 750SS 1997 Yamaha Riva 1995 KTM 250 1970 Honda CB350 1952 Ariel Square four
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05-17-2015, 04:44 PM	#4
Inroads Join Date: May 2015 Location: Wimberley Texas Posts: 193	I've had an inch or two of fuel/oil that I've dumped in my break-in.
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05-21-2015, 02:41 PM	#10
rjmorel Join Date: May 2007 Location: Warshington Posts: 928	Nothing wrong if you own a zong with a ding don....... Oh never mind. rj
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07-01-2015, 02:25 AM	#13
rjmorel Join Date: May 2007 Location: Warshington Posts: 928	I also had 1-2" of oil in crank case vent tube when bike was first new. I called CSC and they said to just take the black plug in the end out and not worry about it and let it vent away. I took the plug out and drilled a 1/16" hole in it and reinstalled it back in the tube end. My reasoning is if I ever got into a water crossing that could reach the tube the plug could stop most of the water from filling the tube but it can still vent ,drain out all the time so I don't see the 1-2" of oil being built up any more. rj
	0

07-01-2015, 02:40 AM	#14
SpudRider Join Date: Jul 2008 Location: Idaho Posts: 25,054	The plug is there so you can retain the oil for safe environmental disposal. You can remove the plug and add the oil from the tube to the dirty oil you collect every time you change the engine oil. __________________ Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894
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