Any one else ever seen this ?

 My 84 Goldwing evidently has a bad float or needle in on of the left side
carbs. After it's shut off it will drip a small puddle of gas out the bottom
of the exhaust pipe. Seems to be running into the crank case also and
diluting the oil. Just wondered if anyone else has run into this . Kind of
thinking the alky in the gas nowadays is attacking some components.  Just
bending some ears...

  Just wondered if anyone else has run into this .

Yes.


The additives may be eating up the rubber parts, or the gasoline may
be evaporating and causing the float valves to stick from gum and
varnish buildup.

I add Stabil to a full tank of gasoline before storing my bike for the
winter, and I run 4 or 5 ounces of Berryman B12 Choke and Carburetor
Cleaner through a full tank of gasoline in the spring.

If B12 doesn't solve the problem, you may need to disassemble the
carbs and examine the float valve seat. The tiniest bit of gum and
varnish can keep the float valve from seating.

Sometimes it's necessary to stick a piece of crocus cloth on the end
of a small
rod or perhaps a 1/8th inch drill and use that to clean the float
valve seat.

If all else fails, you can mail order new float valve parts from:

www.carbkitscapital.com

www.flatoutmotorcycles.com

www.powersportspro.com

www.bikebandit.com

www.oldbikebarn.com

 Thanks guys for the ideas , I'm getting ready to tear into the carbs . I'll
let ya know what I found.    Runk.....
 Just wondered if anyone else has run into this .

Yes.


The additives may be eating up the rubber parts, or the gasoline may
be evaporating and causing the float valves to stick from gum and
varnish buildup.

I add Stabil to a full tank of gasoline before storing my bike for the
winter, and I run 4 or 5 ounces of Berryman B12 Choke and Carburetor
Cleaner through a full tank of gasoline in the spring.

If B12 doesn't solve the problem, you may need to disassemble the
carbs and examine the float valve seat. The tiniest bit of gum and
varnish can keep the float valve from seating.

Sometimes it's necessary to stick a piece of crocus cloth on the end
of a small
rod or perhaps a 1/8th inch drill and use that to clean the float
valve seat.

If all else fails, you can mail order new float valve parts from:

www.carbkitscapital.com

www.flatoutmotorcycles.com

www.powersportspro.com

www.bikebandit.com

www.oldbikebarn.com

 

I wouldn't worry about modern fuel rotting the components, whatever
Krusty says. I've never known it to happen (fuel companies do test their
fuels, amazingly enough).

Likewise, it's very unlikely to be gummed carbs unless the bike has been
laid up for ages, and even then, the float assemblies are the last
things to gum up, in my experience.

So, you've almost certainly got a leaking float valve. Sometimes the
float valves just stick on Hondas of this generation (and earlier).
Tapping the carb body with a tool is often enough to free them.

However, there's a photo-essay article in the very latest Classic Bike
(UK magazine) whch details this very problem on some old Hondas.

The culprit is a little rubber O-ring which seals the float valve
housing into the carb body. With the passage of time, this hardens and
lets fuel through, even though the float has actually operated and shut
off the valve.

These little O-rings are surprisingly costly, especially if you want to
do a bank of carbs. However, the seat can be removed (it's just a
push-fit) and a *very* small dab of gasket sealer around the O-ring is
enough to make it fuel-tight again. Cost effectively zero.

The article shows the whole thing, step by step, with pictures.

I'm afraid Krusty didn't refer to this because it's not something he
knows about, unless he's read ther article in question. I must say I
didn't know about these seals until someone brought it to my attention.

If I'm feeling charitable, I suppose I could do a hi-res scan of the
article and stick it on a web page for you.


--
BMW K1100LT Ducati 750SS Honda CB400F SH50 Triumph Street Triple
Honda XBR500  MZ TS250/1.
If you don't know what you're doing, don't do it.
chateau dot murray at idnet dot com

 On Apr 26, 9:26 am, totallydeadmail...@yahoo.co.uk (The Older Sod)
wrote:
 > whatever Krusty says.