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Message started by Facebite138 on 03/12/09 at 17:38:46

Title: Breather Tube?
Post by Facebite138 on 03/12/09 at 17:38:46

For those of you with the cone air filters, what do you do with your crankcase breather tube?

Title: Re: Breather Tube?
Post by matt_savage on 03/12/09 at 18:36:25

i think consensus is to keep it above the carb and end the tube with a small cone air filter. I havent found a filter small enough for mine just yet, but thats what I plan on doing. HTH

Title: Re: Breather Tube?
Post by justin_o_guy2 on 03/13/09 at 00:06:09

I wonder if an air bubbler for an aquarium would be small enough to use there..

Title: Re: Breather Tube?
Post by dasch on 03/13/09 at 04:47:12

I used a regular plastic inline fuel filter.

Title: Re: Breather Tube?
Post by diamond jim on 03/13/09 at 04:53:33

A lot of members use this little guy. You can get one at Autozone and likely any other chain auto store for about $4.

http://www.rickramsey.net/CRF230Flg/TrannyBreather.jpg

Title: Re: Breather Tube?
Post by matt_savage on 03/13/09 at 06:58:57

http://www.chaparral-racing.com/Chaparral/product_family.asp?family_id=3567&gift=False&mscssid=044EB6BB776F4477D95F98C8174A3672

Title: Re: Breather Tube?
Post by diamond jim on 03/13/09 at 08:57:40

Oops, they are about $12 actually.

Title: Re: Breather Tube?
Post by justin_o_guy2 on 03/13/09 at 09:07:12

Well, It's sure Cute, but for $12.00, I'd have a look at the aquarium air bubbler or build a little filter. That $12.00 would go in the tank.

Title: Re: Breather Tube?
Post by diamond jim on 03/13/09 at 09:15:35

Are you talking about one of these?
http://www.thatpetplace.com/images/presentation/P50180.jpg

I'm sure it's possible to use one of those but I don't think it would work very well.

Title: Re: Breather Tube?
Post by Charon on 03/13/09 at 09:24:10

How big is the breather tube - maybe 1/2 inch inside diameter? They make it that big for a reason. A good bit of air moves around into and out of the crankcase when that big single piston reciprocates. Don't restrict the flow any more than is necessary, or you might get unwanted side effects like leaky seals.

Title: Re: Breather Tube?
Post by eanon on 03/13/09 at 09:32:48

I got a mini cone from autozone for like $6. Looks good with the big cone on the carb. I just let it hang there, behind the clutch and throttle cables.
http://bikepics.com/pictures/1598267/

Title: Re: Breather Tube?
Post by T Mack 1 on 03/14/09 at 05:00:10

67636C6D6C020 wrote:

I got a mini cone from autozone for like $6. Looks good with the big cone on the carb. I just let it hang there, behind the clutch and throttle cables.
http://bikepics.com/pictures/1598267/

Do you get any oil build up in it when it is so low?? I thought the consense was that it should be put so that the oil condensate drains back into the head.

Title: Re: Breather Tube?
Post by Facebite138 on 03/14/09 at 08:52:58

Hey everyone!!! Thanks to all of you. I tend to over-think things. I was stoked to start working on the bike but when the breather tube came up I hadn't even considered it I had no clue what to do. I took a few days off work this week and can't wait to finish what I'm doing to my bike and get back on the road.!!!

Title: Re: Breather Tube?
Post by Savage_Amusement on 03/14/09 at 21:42:33

Mine looks like the red one and I know it didn't cost 12 bucks because I would have laughed at them all day long. I think it was more like 6-7 and I got it at a motorcycle shop. I just took my hose in and we found something that would fit.

Title: Re: Breather Tube?
Post by Savage Eddie on 03/14/09 at 22:01:14

well i never thought about that either, i just had mine hanging straight down. didnt see any oil dripping until it flooded. another new project!!

Title: Re: Breather Tube?
Post by eanon on 03/15/09 at 15:18:40

Quote:

Do you get any oil build up in it when it is so low?? I thought the consense was that it should be put so that the oil condensate drains back into the head.

nope. just pulled the filter to give it a look see... there was a little oil in the tube (the inside of the tube was moist, nothing more), but the filter was dry. Had it on there for 8 months? something like that. Seems to be doing OK!