1961 R60/2 BMw

Seem to have a blocked gasline to the right carb; how to fix? I have tried
air to no avail. I donot want to take the hose of the carb connection.Any
other ideas..

 

I can understand why you wouldn't want to risk damaging original
parts---it's probably difficult or impossible to find the original kind
of fuel hose...

You could try squirting some aerosol carburetor cleaner down the hose
and leave it sit for half an hour. Try STP or GumOut or Berryman's
B-12---but this is at your risk, if the fuel hoses you're talking about
are 44 years old and are natural rubber covered with fabric. Carb
cleaner might dissolve natural rubber...

Anyway, if you do use a aerosol carb cleaner, fill up the fuel line,
let it sit for half an hour, then open up the fuel drain on the bottom
of the carburetor float bowl and let the old bad stuff drain out. Then,
if you spray more carb cleaner down the fuel hose and watch all the
crud come out the float bowl drain...

If you get lots of dirt and rust come out the drain plug, you know that
there's a lot of dirt remaining in the float bowl and you really should
take the float bowl off and clean it out. If you don't clean it out,
loose dirt will get sucked up into the carburetor's jets and internal
passages when you get the engine running...

That motorbike probably has a Bing slide valve carb or something that
looks like an Amal...

Another way to get aerosol carb cleaner down into the float bowl of a
slide valve carb is to raise the slides all the way up and carefully
squirt the aerosol down past the needle. But, you'd probably have to
remove the air intake tube that goes to the air cleaner and you might
not want to do that, either...

 

If I don't remember wrong (I had one of those for 11 years)
the hose goes to the float bowl cap. If that is right, just
take of the cap and test if you have fuel flow that far. At
the same time you can lift out the float and check that it
moves freely, clean the float, inspect the float needle and
clean out any crud in the float bowl (again, I might be wrong
but I don't think there is a "normal" float bowl drain).

But, just being curious here, what is so special about removing
the hose? As someone else suggested, it might even be time
to get some new.

 

If it's a 1961 fuel hose, it's definitely time for a replacement.

I think you need to find a good shop or mechanic. The bike is
worth some money as is. Don't crap it up if you don't know what
you're doing. If it hasn't run in a long time, it really ought
to get some knowledgeable TLC before you run the engine.