[SKELTIS]

BREATHER ELEMENT on a '75 HONDA CB500T
The description: A spongue beneath the battery and between the carbs, under the seat - It sits in a window pane piece of plastic.

Honda doesn't make it -
Nobody has one in NYC (that I spoke to anyway)-

1. ANYONE HAVE ONE OR KNOW WHERE I CAN GET THIS PART?
2. and, IF IT HAS A LARGE HOLE IN IT, IS IT NECESSARY TO REPLACE IMMEDIATELY?

Would love to buy immediately. Thanks guys.

 

[SKELTIS]

Is there a a simple solution to replacing that sponge with something else?

Basically, all bikes this age having this exact set up have deteriorated Breather sponges...

Any info would be super -

 

[UngaWunga]

I don't even know what the hell a breather sponge is...

If its a filter on the end of the crankcase breathers, K&N sells a little filter that fits on the end of breather hoses. Or you could route the breathers back into the airbox.

 

[joe c]

yah, im kinda mystified too....


jc

 

[SKELTIS]

This battery box has the housing on the bottom (where this breather sponge is kept)

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=4647021717&rd=1&sspagename=STRK%3AMEWA%3AIT&rd=1[/url

 

[UngaWunga]

Yeah... I have a CB450T and did have a 500T, and I still have no idea what that is. Don't sweat it.

Its one of two things:
1) catch can for breather blowby (oil)
2) simple filter for the breather hoses.

I'm guessing #1.

 

[SKELTIS]

Yeah, I basically shoved a house sponge in there this morning - the hell with it, after further review I saw no real purpose other than catching acid from hitting the frame. Either way, with the new sponge, it won't.

 

[UngaWunga]

Acid? You should route the battery drain tube to a plastic catch can or the ground.

 

[SKELTIS]

Yes, the battery breather tube is routed to the ground, but if you look at the link I posted, the battery basket is all part of this window pane the sponge sits in, and inevitably, this sponge (the original one I removed from the bike) had battery acid spill on it.
Safe to assume it will continue to act as a catch.

 

[ROSKO]

Oh man, the 'Ol acid breather catch sponge? I have a few wild stories.... used to take those while on R&R back in 'Nam.


BORN TO LURK, FORCED TO WORK.

 

[SKELTIS]

ha, i love that! douche.

 

[ROSKO]

Seriously though, on all the CBs I have the battery AND engine breather tubes just vent to the ground. No sponges or filters and no problems so far.

Really there shouldn't be anything much coming out of either one, think vent not drain.

BORN TO LURK, FORCED TO WORK.