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How to use Choke

20K views 17 replies 12 participants last post by  mowergene  
#1 ·
Hi!

I just bought a new L130 tractor and I have never owned (or used) anything like this before. One simple question. How do you start it?

OK, I know you move the choke lever to the up/choke position, but at what point do you move it down? When I was at the dealer, he said not to leave it in choke for too long or else it would 'choke out'? When does this happen, and does it hurt the engine?

As what I read, if the engine is warm, you just start it in the 'run' (or middle) position, not the choke or the turtle position.

Sorry for being basic, but these are just some question I had.

Thanks in advanced!
 
#2 ·
#4 ·
Thanks for the responses. On the demo I started, I guess I left the choke on for too long and the result was black-ish smoke that came out of the exhaust when I put the engine to 'run'.

Does that do any damage? I plan on following the advice here and only using it for a few seconds, but I'm trying to learn about this stuff too.

thanks!
 
#7 ·
You need three things to make an engine run, Air, fuel, and spark. Since you have a carburated engine sometimes you have manually meter the air that goes into the engine, that is what the choke does; it alters how much air is allowed into the carb to mix with the fuel. If you choke it, you are restricting the airflow. You normally do this when the engine is cold or the temperature is cold. If you choke it too much it just means more fuel is being dumped into the engine than air and thus the black smoke, which is partially burnt fuel. No biggie other than adding to global warming.

When the engine gets warm you want to open up the choke so more air gets to mix with the fuel. It's simple but effective way manage the air/fuel mixture. :trink39::trink39:
 
#6 ·
:ditto: all that happens is the cylanders load up on un burnt fuel due to lack of O2, Once corrected the smoke is the excess fuel burning. You can see that in the Hulk vid.
 
#10 ·
Thanks all for the responses and the great info.

From reading other threads, I know I have to get out there and snap a pic. Before I do, I want to check here to see how to wash it as well, as there are some water spots from rain and dust on it. I bought it from the local deere dealer instead of a big box store, and they were great, but I suppose I wished they would have detailed it before delivery.

Thanks!
 
#11 ·
Soooooo: What's a choke???................:sorry1:..............just a proud owner of a X720
 
#12 ·
On my L120 (different engine, same principle) I use full choke for a cold start. Once it fires and runs (~2 to 10 seconds) I slowly roll to choke to the off position. Takes about 5 seconds to go from full to off. The only exception is when the temp is <40Âş, then I move it to mid position for ~20 seconds until the engine settles down.

On a HOT start, no choke. Advance throttle to 1/3 position or higher and start. HOT is defined as engine has been turned off less than 10 minutes ago.

On a WARM start, throttle opened as above, choke to full, and crank. Engine will start immediately and then I'll quickly roll choke to off. Actually, I can roll the choke to off as soon as it starts cranking (~1 rev), it just needs that extra fuel boost when warm to start smoothly.

If I follow the above schedule, it starts every time. After a year or two you'll get to know your engine and what it needs. As larrybl mentioned, all engines are different in what they need to get going.

Time was when all drivers knew what a choke was and how to use it. Prior to ~1950 all cars had a white knob on the dash labeled CHOKE. For a cold start, you depressed the gas pedal slightly, pulled on the choke and cranked her over. One got used to knowing how to baby it back in depending on outside temp and engine condition. Ah, the good old days... The last car I had with a manual choke was a 1976 Honda Civic.

HTH,
Paul

For washing options, just do a search above using the "Google Custom Search" box with "washing my tractor" or something similar in the search box. That is (or was) a common topic for discussion on here. Some treat their tractors like tractors and others treat them like show vehicles. Plenty of advice on how to take care of them. Good luck with your machine.
 
#13 ·
#15 ·
The L 130 has 2 levers right? I know the D series just has 1 lever, and the choke is all the way up ( throttle up also ).. My neighbor has an L115, and it has 2 levers.. throttle 1/2 way. choke full, and it will fire up.. instructions may say to use full throttle but you don't need to. the governer opens the throttle blades fully when it's not running, and it will give it what it needs, without revving a cold engine
 
#16 ·
Yes, the L130 has two levers, and the operator's manual says exactly what you're saying regarding the position of the throttle and choke levers.
 
#18 ·
You might find that when it's warm, you might need a quick choke to start it. The choke will bring more fuel in quickly. When cold, once it fires, take the choke off SLOWLY. If it starts to kill, quickly put it back on.
For cold starts, when the machine has been idle for a while, I'll set the throttle about 1/2 and turn it over a few revolutions BEFORE choking. This gets the oil circulating BEFORE it fires. Once it's running, keep the RPMs DOWN for a minute or two to allow for warm-up before running at top speed.