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Posted by Stormin Mormon on July 2, 2006, 9:40 pm
Craftsman usually used tecumseh engines. So, it would be gastank h igh
in front, carb on the side.
--
Christopher A. Young
You can't shout down a troll.
You have to starve them.
.
Is this the type that the carb bolts directly on top of the fuel tank?
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Posted by 46erjoe on July 3, 2006, 6:35 pm
Tinkered with it some more today. I can keep the motor running
indefinitely as long as I keep priming it every 10 secs of so. Does
that give any clues? Thanks.
Are there places on the net where I can just buy a carb outright
instead of going through Sears or rebuilding it?
On Sun, 2 Jul 2006 20:19:04 -0400, "digitalmaster"
>
>> Got this Craftsman model 917 6-hp lawn mower for free when I got a new
>> house. It starts up fine, but runs for only about 30 seconds and then
>> stops.
>>
>> I know what you're thinking: Fuel delivery problem. I thought so too.
>> I pulled off the tank emptied it, blew it dry and put it back on with
>> fresh gas. The screen at the bottom of the tank is clear.
>>
>> If I prime it more than the 5 suggested times, it says, it stays
>> running longer.
>>
>> I did this quite a few times in order to get it hot, but it still
>> keeps on shutting down.
>>
>> The carb is tight to the block. I tried leaving the gas cap on and off
>> to see if venting was an issue. Still kept doing the same thing.
>>
>> The air filter was dirty, so I left it off while testing. Still won't
>> run.
>>
>> Any suggestions?
>Is this the type that the carb bolts directly on top of the fuel tank?
>
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Posted by mm on July 4, 2006, 12:02 am
wrote:
>
>Tinkered with it some more today. I can keep the motor running
>indefinitely as long as I keep priming it every 10 secs of so. Does
>that give any clues? Thanks.
IMHO It's parts in the carburetor, and even disassmbling the carb and
soaking in the good stuff** might not be enough to clean them. The
guy at the repair/parts store talked me into buying 5 or 6 parts, and
I did it partly so he would be nice to me for the next lawnmower, so
it was about 30 dollars.
**I'm not sure if they sell the good stuff anymore. IIRC the stuff 40
years ago would leave the metal of my car's carbuertor parts shiny,
but I'm just not sure it is that good anymore. I'm not referring to
gumout spray or liquid, but small parts cleaner that comes in a coffee
can style thing, with a metal basket so you can dip things in there,
then pull them out without getting the stuff on your fingers. It
turns them brown. Does anyone know if the stuff they sell in the last
20 years is as strong as what they sold 40 years ago. Carcinogens and
all that. What about what gas stations use, with the flexible
gooseneck pipe and the pump that circulates the cleaner and puts it
where you want it. Is that the same stuff that they sell in quart
sizes, with the baskeet in it.
At any rate, buying new is more reliable. Each part is only 3 or 4
dolars.
Carbs vary but this one had a bowl with a nut head on the mddle bottom
of it. The part was an inch long or more, and has a small jet in it
that if you have one like mine, you probably can't even see the jet.
So you'll never know if you have unclogged it.
I think he sold me a new float, but I don't think I needed that. A
new valve and seat is not a bad idea.
He tried to sell me a new bowl, under the theory that once running,
the gum in the bowl would dissolve and yet still clog the new jet.
That doesn't sound likely, but I may have bought it, like I say, to
make him happy.**
There might be a screen of some sort, can't remember.
He didn't seem to be listed as an authorized dealer, (but he had
everything in stock.) so I called him to make sure he had what I
wanted. It was almost closing time and he was 10 or 15 minutes away,
so he on his own spent the time making a list of the parts I needed,
putting them in a bag and making out the receipt. That wasn't enough
to make me buy all of them, but all but one or two. And it did save me
time. I think in less than an hour after I got home it was assembled
and running fine.
*** This was the end of last summer. I have 3 more lawnmowers that
need fixing, but I have two that work and it's hard to get up the
energy, or even the money, to fix mowers that I have no use for and
can't sell for much.
>
>Are there places on the net where I can just buy a carb outright
>instead of going through Sears or rebuilding it?
>
>
>On Sun, 2 Jul 2006 20:19:04 -0400, "digitalmaster"
>
>>
>>> Got this Craftsman model 917 6-hp lawn mower for free when I got a new
>>> house. It starts up fine, but runs for only about 30 seconds and then
>>> stops.
>>>
>>> I know what you're thinking: Fuel delivery problem. I thought so too.
>>> I pulled off the tank emptied it, blew it dry and put it back on with
>>> fresh gas. The screen at the bottom of the tank is clear.
>>>
>>> If I prime it more than the 5 suggested times, it says, it stays
>>> running longer.
>>>
>>> I did this quite a few times in order to get it hot, but it still
>>> keeps on shutting down.
>>>
>>> The carb is tight to the block. I tried leaving the gas cap on and off
>>> to see if venting was an issue. Still kept doing the same thing.
>>>
>>> The air filter was dirty, so I left it off while testing. Still won't
>>> run.
>>>
>>> Any suggestions?
>>Is this the type that the carb bolts directly on top of the fuel tank?
>>
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Posted by Lauri on July 9, 2006, 2:26 am
wrote:
>wrote:
>
>>
>>Tinkered with it some more today. I can keep the motor running
>>indefinitely as long as I keep priming it every 10 secs of so. Does
>>that give any clues? Thanks.
>
>IMHO It's parts in the carburetor, and even disassmbling the carb and
>soaking in the good stuff** might not be enough to clean them. The
>guy at the repair/parts store talked me into buying 5 or 6 parts, and
>I did it partly so he would be nice to me for the next lawnmower, so
>it was about 30 dollars.
I missed the original post so I'm piggybacking onto this response. My
Craftsman mower had the same problem this spring. I had left fuel in
it over the winter (yes, I know better but I've gotten away with it in
the past!). Like yours, it would run as long as I pushed the primer
bulb every few seconds, but that's an awkward way to mow a lawn!
I took it to a mower repair guy. He cleaned the carb and replaced the
gas cap. Apparently a poorly-fitting gas cap doesn't allow for the
proper vacuum and can contribute to the mower not running. (Someone
else can probably describe that better). It cost me between $25-30 to
get it fixed.
Lauri in WA
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Posted by Jimmie D on July 28, 2006, 3:20 pm
>
> Tinkered with it some more today. I can keep the motor running
> indefinitely as long as I keep priming it every 10 secs of so. Does
> that give any clues? Thanks.
>
> Are there places on the net where I can just buy a carb outright
> instead of going through Sears or rebuilding it?
>
>
> On Sun, 2 Jul 2006 20:19:04 -0400, "digitalmaster"
>
>>
>>> Got this Craftsman model 917 6-hp lawn mower for free when I got a new
>>> house. It starts up fine, but runs for only about 30 seconds and then
>>> stops.
>>>
>>> I know what you're thinking: Fuel delivery problem. I thought so too.
>>> I pulled off the tank emptied it, blew it dry and put it back on with
>>> fresh gas. The screen at the bottom of the tank is clear.
>>>
>>> If I prime it more than the 5 suggested times, it says, it stays
>>> running longer.
>>>
>>> I did this quite a few times in order to get it hot, but it still
>>> keeps on shutting down.
>>>
>>> The carb is tight to the block. I tried leaving the gas cap on and off
>>> to see if venting was an issue. Still kept doing the same thing.
>>>
>>> The air filter was dirty, so I left it off while testing. Still won't
>>> run.
>>>
>>> Any suggestions?
>>Is this the type that the carb bolts directly on top of the fuel tank?
>>
>
Sounds a lot like mine that had set up for 2 years. There was a couple of
things wrong the rubber boot used to prime it was torn and it was full of
gooey gunk. Replacing the boot and soaking the carb in cleaner did the job.
These carbs used to have a needle valve in the bottom of the bowl now the
orifice is permanently set. The tube that holds the bowl on was really
gunked up. Cleaning this solved the biggest part of the problem.
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