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Ford Tractors Discussion Forum
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Carburator Adjustment

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Amatt

01-29-2008 09:45:55




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According to my manual, with respect to adjusting the carburator on my 850: "The final adjustment should be made in the field. With the engine running at governed speed under full load, turn the adjustment needle in (clockwise) until the power picks up and the engine runs smoothly."

Putting the engine under full load makes me think of plowing or some other heavy tillage operation. How do I adjust my carburator and keep a straight furrow at the same time?

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old

01-29-2008 12:45:35




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 Re: Carburator Adjustment in reply to Amatt, 01-29-2008 09:45:55  
What do take a lot of start and stopping. I adjust it to the point I think is about right, work it and then try a little more adjustment till I have it just where it should be. I would NEVER do it with 2 people and having one drive and one adjust it is just plain not safe and can get a person dead. All it takes in one miss step and you have a person under the tractor

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Jerry/MT

01-29-2008 10:19:25




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 Re: Carburator Adjustment in reply to Amatt, 01-29-2008 09:45:55  
If you are going to follow those instructions you"ll need a 2nd person to drive while you walk along side and make the adjustment. What I would do is to start the heavy work and see how the engine runs. Then stop and turn it 1/8 turn either way and note the result. If it improves repeat. If it gets worse, turn a 1/4 turn the opposite way which is 1/8 turn from where your initial setting was. If you get an improvement, continue until the performance degrades and go back to the previous position.

Be careful not to get too lean because most of these gas engines depend on the evaporative cooling of the fuel to cool the fuel/air charge some what and moderate the peak gas temperatures and protect the exhaust valves. Check with the owners manual and see if they advise a minimum power jet setting.The Ferguson"s say never less that one full turn out on the power jet.

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