leaky carbs

I just got a 1972 honda cl350. Both carbs leak from the overflow
tubes. I finnaly discoverd a small hariline crack in the brass
overflow tube that is connected to the float bowl in each carb. Does
anyone know of anyway to path it? Also, has anyone else had this
happen before? Thanks.

 

Identical hairline cracks on an overflow tube in both carbs
sounds a little odd. Are you sure about that ?

My first bet would be that the floats and/or float valve need
replacement or at least an adjustment. Sounds more likely
than two matching hairline cracks.

If I had a problem with a crack, I'd probably attempt to coat
the cracked surface with an epoxy coating, being careful that
I didn't apply coating anywhere that would restrict gas flow.
I'd then shop for junk carbs on eBay to replace the cracked
casting.

 

I'm absolutly sure it's the cracks. The valves work perfectly and the
floats move freely. I was stumped untill i decided to take out the
floatbowls and fill them with gas just to see what happened. At about
halfway full, way before the overflow hole, they started leaking.
I was thinking about coating them somehow. Recomend any particaulr
epoxy? Thanks.

 

I am a big fan of soldering brass but it may no be possible in this case.

 

Yes, on a set of mikunis on a kaw 900.
I soldered them with plumbing solder and rosin.


--
--
Elvis ~vroc~ 2770, rog # 17, vra # 168a
04 v2000, 98 bubf (gbnf), 76 kz900, 75 re5a
75 rokon, 68 ss125, 69 sl90
03 1600, 94 intruder 800, 84 ct110
http://rogueownersgroup.com/MemberPage.aspx?id=17
....they keep multiplying...
... anyone got a tl125.. : )

Bauxite, Arkansas

 

Well, I cleaned and fluxed the brass and it soldered beautifully. I
tested by blowing throught the tube with water in the bowl and there
were no bubbles so I think it's gonna work. I'll tell you how it goes
tomorow.

 

Well, the soldering workd great. No leaks at all. I was able to get
it running but I have a strange problem. Engine seems to idle ok, but
when i give it gas, it stalls at around 2500 RPM. Any ideas?

 

Well, the soldering workd great. No leaks at all. I was able to get
it running but I have a strange problem. Engine seems to idle ok, but
when i give it gas, it stalls at around 2500 RPM. Any ideas?

 

Are those constant velocity carbs?

If so, you probably have a stopped vacuum or air passage.

Here's a site on a cl 350 rebuild... might have some info for you.

http://webpages.charter.net/camel200/Pages/cl350_rebuild.html#CARBS


--
--
Elvis ~vroc~ 2770, rog # 17, vra # 168a
04 v2000, 98 bubf (gbnf), 76 kz900, 75 re5a
75 rokon, 68 ss125, 69 sl90
03 1600, 94 intruder 800, 84 ct110
http://rogueownersgroup.com/MemberPage.aspx?id=17
....they keep multiplying...
... anyone got a tl125.. : )

Bauxite, Arkansas