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Unread 26-06-2005, 02:09
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Re: Lawnmower Engine Starting Tips??

Quote:
Originally Posted by Al Skierkiewicz
Sanddrag,
The carb has a sump tube that runs down into the gas tank and the tube has a screen filter at the bottom. If the gas had been sitting any length of time, the screen could be gummed up. As I remember the carb kit has a new screen as well. Since there is no fuel pump, the hissing sound is the carb trying to suck gas in from the tank, or bypass air around the choke or gas evaporating when it hits the hot engine parts in the intake. Since the engine runs if you squirt gas into the carb, suspect fuel delivery. You may find a manual online if you haven't looked already. B&G may group engines by family so the entire part number will not get a hit on their site. BTW, the choke (if not manual) is designed to open shortly after start. If it does not, try holding it open with a screwdriver while you start it the second time.
I too have a problem and mostly what has been said here has been done by me:

Problem - No fuel going from the circular fuel tank (located under the carb) going to the carb

What has been checked Thus Far:
1) Made sure the fuel line is clear and getting to the circular fuel tank through its provided fuel lines.
2) Checked and cleaned Carb and any methods that get fuel into the carb.
3) Fuel & Oil has been changed as well as spark plugs and air filters are concerned.

What HASN'T been checked:
1) Primer Button which just so happens to be built into the Carb Assy. thus if I have to replace one thing I would have to replace the entire Assy.

Fuel is going from the main tank into the circular tank just not going from the circular tank to the carb.
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Unread 26-06-2005, 14:34
sanddrag sanddrag is offline
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Re: Lawnmower Engine Starting Tips??

Well, the carb was cleaned and sealed back on the gas tank and reinstalled on the engine. I got it to run really good for about a minute. I took it all the way through the throttle up to WOT and it was really punchy. The only thing is that is would bog down at idle, and if I did not rev it back up, I knew it would stall. So, I ran it for about a minute then I let it stall so I could adjust the idle stop screw (screwdriver wasn't withing reach while running).

Anyway, I never could get it going again. Only a few seconds at a time by putting fuel right into the carb.

So anyway, I've given up. This week I might take it to the lawnmower shop and see what they say.
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Unread 26-06-2005, 18:09
Andy A. Andy A. is offline
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Re: Lawnmower Engine Starting Tips??

I had a similar problem with a VW beetle's carb.

It hadn't been run for a while, and there must have been years of gunk in the carb and intake track.

Since we couldn't get it to take up fuel with out just flooding the engine and/or killing the batter, we pinched the fuel line and had someone just spritz some engine starter in the carb till it caught, and again every time it started to bog down.

It ran very poorly at first, owing to all the gunk in the engine, but after about a minute of running on ether, she was doing pretty well. We hooked up the fuel line again and from then on she managed to carborize on her own. The more she ran, the better she did, and the easier she was to start afterwords.

My suggestion is to try starting it with some starter fluid, and keep it running like that for a bit. My guess is that after a little bit of running, it will manage to take up enough gas to keep running on it's own. Then, just let it heat up at about half throttle, and run most of the tank through. Keep doing it till she's begging to get started again.

Some more conservative minds don't seem to like the idea of using so much starting fluid. I've used it a bunch, and never had anything blow up or die prematurely.

-Andy A.
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