is spark, but no fuel there. Any ideas?
Thanks, Tom
Garden

Experienced gardeners share their insights in answering this question :
It sounds like the needle valve for the float is sticking.

The first thing I would do is bang on the carb with a rubber hammer a few times. Don’t use anything heavier or you could damage the carb.

Then, check the float valve in the carb bowl. You will have to take the bottom of the carb off to do this. Remove the float bowl, then carefully remove the float. The needle valve is attached by a small wire catch to the top of the float. Clean that valve and use a Q-Tip with carb cleaner to clean the seat in the carb body.

How to Identify and Fix Common Gardening Problems ?

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The MF-65 tractors were offered in gasoline, diesel and LP-gas. This model carried a Continental 4-cyl.
The most common cause for slow or hard cranking is a poor ground circuit or bad electrical connection. With your John Deere, I would tend to think that it is weak ground either at the cable or where tractor ground/starter mounts. A tractor, in the same manner as a car, uses a DC electrical system.
Tractors will start in gear if normal starting circuitry is bypassed. Start the engine from the operator`s seat with the transmission in park. Do not start the engine by shorting across starter terminals. Never start the engine while standing on the ground.

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Have a craftsman 16″ chain saw 358.360260. Could not initially get it started after it had sat for a couple years with fuel stabilizer in it. When I went to use it the fuel had all evaporated and the fuel pick line was rotted. I replaced that with some difficulty but finally got it on. Saw still wouldn’t start. Replaced the fuel filter. Still wouldn’t start. Pulled the carb apart and cleaned and recleaned everything. Diaphragms were good and I didn’t adjust any of the mixture screws because as I said it ran fine before storage. Non of the carb passages were clogged. Fresh gas 40:1, good spark plug and good spark. Airfilter is good. Engine has maybe about 4 hours of total run time on it. It’s a ZAMA (?) carb. It will run for about 30 seconds when I manually prime it by pouring a small amount of fuel directly though the carb. When I was disassembling the carb the vent hose that goes back into the fuel tank seemed to have a small out of ?substance? in it which I cleaned out. It was right at the end the of the hose that goes back into the fuel tank and not up by the carb. It didn’t appear to be like your typical gummy deposits/varnish though. I hope it wasn?t some type of spongy check valve stuff that is supposed to be in there. That might explain some of my problems. Anyway, I also can not seem to get the primer bulb to fill. When I open the fuel tank, look in side and depress the primer bulb, air bubbles come out of the fuel filter. But when I let the bulb reexpand there’s no fuel that gets sucked up the hose. I can however seem to fill the primer bulb when the fuel tank is full and the chainsaw is laying on it?s pull cord side and the bulb is depressed a bunch of times. The saw will also start and run again for about 15 seconds then die. It’s definitely not getting/fuel and probably running out . Thanks.
ANSWER :

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ANSWER :

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Ryobi weedeater runs good but when shut down fuel drips out carb. ??
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