How available and expensive is a new one? How much to rebuild? If
you do the work, How experienced are you, or confident, are you with a
rebuild? Is there any rust on the old carb?? Do you just want to get
it repaired quickly or do you want to save a few bucks and maybe learn
something but even if you totally screw it up then you really learned
something hopefully yu can still afford the replacement, lol.
Assuming that you are able to rebuild the carb, the only reason I can think of
for not doing so is inability to find the parts needed for rebuilding --
usually only a float, needle valve, and one gasket, IME.
On Mon, 27 Sep 2010 00:40:36 +0000, Doug Miller wrote:
I seem to find a lot where the holes in the carb body for the throttle
plate spindle have worn, so they leak a lot of air around the pivots - I
don't think anything to fix that is usually in rebuild kits. They can
probably be drilled and some form of sleeve fitted, but finding a
suitable sleeve might be tricky.
(I've never seen a bad float - heard of it happening many a time, but I'm
yet to find one in any carb that I've had apart!)
I agree with Jules. I've "cleaned" a lot of carbs on motorcycles/ATV's
and mowers. I guess you could call them rebuilt if you want to, but
99% of the time they only need dis-assembled and the jets/transfer
ports cleaned. I have never seen a float that leaked, but have seen
some bad float valves and bad float settings.
I can't remember the last time I even had to buy a gasket or kit. Like
Jules said, the only time you would ever need to replace a carb is
when the throttle plate shaft wears down the housing to the point of
having so much slop that it lets air leak thru. Or, the housing is
broke/cracked for some reason.
I have seen 2 gas-logged floats. One I needed fast...emptied and heat-
dried it and soldered the hole closed.
Most carbs can be cleaned and adjusted without rebuilding. Some
mechanics will charge for the rebuilding kit and not even install it.
I'm not saying most...just some!
The problem you run into with small engines is a lot of them don't
have fuel, filters and people tend to store them with old gas in them.
The carb does not really need rebuilding as much as it just needs to
Usually you can just remove the float bowl and blow out the main jet.
On those little Walbro carbs in weed eaters and chain saws, remove the
big screw and plate before you blow back in the main jet so you don't
blow out the check valves. Slip a little piece of fuel hose over the
nozzle of your spray can and you can work it over the jet in the
venturi to get a good squirt
I've said before that they were too cheap to spend any time/money
futzing with an old one--- but I've met resistance every time so I
quit posting it. I guess it is a matter of choice & what else one
might do with that time to frustrate themselves.
I don't know what your carburetors are or where you're getting them but
"cheap" hasn't been in the lexicon of any I've had to deal with...
I think the other poster was implying if OP were to price a new he'd
definitely be looking at rebuilding if I were to guess the intent.
They get $5 or more for the little rubber primer bulb on a Briggs. Can't
imagine what they would want for the whole carb.
Heart surgery pending?
Read up and prepare.
Learn how to care for a friend.
About $50 for most of the ones I've priced in the last few years. I
hate to waste $30, a day of running around, remove, clean, replace,
pray- and then find out it was one of those balls under a Welch plug
that won't reseat. For $50- I remove, replace, and start the
engine. [the last two I got were dead on adjusted from the factory.]
Look yours up-
[his site search sucks so I use the part number & Google it once I get
to his site]
On 2_cycle carbs: turn Hi and Lo screws in (until they lightly bottom)
half turn at-a-time (make a note of each); spray WD or carb cleaner
into the holes (with spray tubes); turn screws until they lightly
bottom and back-out as you previously noted for each.
No dis-assembly. No running around. Cost $0.
That's step 3. Step 1 is determine it is a gas problem. Step 2
is dump gas and replace with fresh.
Then step 3. . . . If all that fails- Step 4 is buy a new carb and go
do something else until the UPS guy drops it off.
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