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starting 560

Y

Yep

New User
I'm using my 560 to move snow. The tractor runs great when I get it started, but it is tricky to start. If you pull out the choke while it's cranking it won't start. If the throttle is not closed totally while cranking it won't start. It will fire a few times, but not stay running long, then on the fourth or fifth try, and it's running a little longer each time, you can use the choke to keep it running, and slowly give it some throttle.

After I have it running you leave the choke out till it warms up a little (may have to hit the choke right when you take off), all things I consider normal. Once it's warmed up it runs great with the choke pushed in. The colder it is the worse it is to start. In the summer you don't use the choke till after it starts and tries to die, then I can keep it running with the choke. I think it is flooding it's self as I smell gas.

Thought about putting a heat lamp on the carb/engine, but there is hay in the shed I keep it in, and I'm uneasy with a heat lamp.

Is there a carb adjustment that would help, keeping in mind it runs great once I get it going.
TIA
 
They are cold blooded. Check the mainfold heat control valve and see that it is free. Use the choke sparingly, and don't turn over the engine more than 3-4 times with it closed. Carb may need cleaning, set the main jet about 3.5 turns out, no more unless it stumbles under load. Max for the main jet is 5 turns out with a heavy load, and maximum gas consumption.
 
Trying to start at closed throttle is difficult as you are expecting it to run on the idle circuit in carburetor. I would suggest you look at the carb to govenor linkage when throttle is fully closed , engine not running, and then pull the throttle just enough to crack the butterfly a little. You will notice that very little movement on the throttle lever will fully open the butterfly when engine is not running and cause difficult starting. Most all automobiles were made so when you pulled the choke they openen the butterfly a little and same with the fast idle setup with a automatic choke. Same principle.
 
I own 2 560's. Both have their own characteristics when it comes to starting. My stock 560 will fire right off no matter how cold it is as long as i use the choke. Crack the throttle about a 1/4 and crank about twice with the choke on, it will fire off every time. Now... the 560 I have done engine work to is a different story. I have to open the main jet all the way, full choke, with the throttle all the way shut in order for it to even think about firing off. I leave it run for about 2 or 3 minutes with the fuel maxed out and then I'll close it off to where it usually runs at. I would say go through the carb and make sure that there isn't varnish built up on the main jet. Another thing is timing, valve settings, and type of venturi you are running in it. Best of luck!
 
Guess I'd start with soaking it for a day in a gallon can of berryman's carb soak. Then blow out the passages in the carb body with an air compressor. Sounds like a passageway in the carb body may be plugged.

With it running, spray some starting fluid or carb cleaner all around the intake manifold to see if there is a leak there from a bad gasket or warped manifold. The engine will speed up when it gets a whiff of the ether.

Spray some carb cleaner and then some lubricant around the carb and governor in case the linkage is sticking a little.

I don't think you have an electrical problem but whenever something is hard starting, you want to know the coil, dist. cap, rotor, points, condenser, wires, and plugs are in the best of shape. Check them for the heck of it.

Let us know what you find out.
 
If you let the tractor sit for awhile not running and with the fuel shutoff in the open position does fuel drip from the carb? Your float needle may not be seating all the way (due to wear or a piece of dirt) and causing the float bowl to overfill which can cause hard starting from a flooded condition. When the engine is finally running and warm it may be able to handle the leaky needle valve if it is not leaking too bad. My 560 is the best starting tractor I have...Fred
 
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