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Hard Starting Scotts Lawn Tractor


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#1 robert_p43 OFFLINE  

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Posted November 28, 2012 - 10:09 AM

I have a Scotts 1742 that is starting hard lately. They say it's made by Deere and I do have to go to the JD dealer to get parts. I forgot the year, 2002 maybe? This is my mowing machine. I also use it to tow a cart. Normally I push the throttle lever all the way forward to choke and turn the key. It starts and I back off on the lever. Now, this is what has been happening. I push the lever, crank, nothing. As it's cranking, I back the lever and when it is all the way back to idle, it fires for a couple of seconds. I do this about 10 times and suddenly it will run and I can throttle it up. Help please?
Robert

#2 boyscout862 OFFLINE  

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Posted November 28, 2012 - 10:16 AM

The choke linkage may not be working right. You need to inspect the whole throttle and choke linkage and check how well it works. I have the same tractor and service manual, but don't have a way to down load it. Its about 100 pages. If you have specific questions I will look them up for you. Excuse my old memory but, you should also check that fuel is getting to the card and that it is clean. Dirt or water in the tank, filter, or carb might cause the same symptoms.
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#3 Guest_rat88_*

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Posted November 28, 2012 - 10:23 AM

I have had a few briggs twins act like this. It ended up being a weak/ dirty fuel pump.

1 trick to get them running it the short term: pull the breather cover and choke it. cover the hole in the choke plate with your finger while cranking. This will help prime the fuel pump.

Edited by rat88, November 28, 2012 - 10:26 AM.

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#4 HDWildBill OFFLINE  

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Posted November 28, 2012 - 11:59 AM

This may be an obvious question but all to often I get "no" for an answer. Have you checked the air cleaner, spark plug, fuel filter? The next thing is with the air cleaner off is the choke actually working?
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#5 robert_p43 OFFLINE  

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Posted November 28, 2012 - 12:10 PM

The choke is working, the air cleaner is somewhat dirty and the fuel filter is pretty dirty.
Since it is past time to service it anyway, I will try replacing the air filter and gas filter. I have a tank of ethenol gas to burn thrrough it first since I don't have a shut-off installed. Maybe I will install a shut-off also. I found ehenol free nearby so I emptied the gas can into the mower about a week ago and filled the can with real gas. I found my manual on the JD site. I had it somewhere but may have been on a different computer. I could upload it but not sure what section I should put it in.

#6 HDWildBill OFFLINE  

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Posted November 28, 2012 - 12:50 PM

I just take a pair of forceps and clamp off the fuel line change out the fuel filter and then open the line again. You can get forceps from HF cheap. I would do the cheap obvious things first, like the fuel filter, making sure the carburetor is working correctly. You didn't mention about the spark plug, how does it look? They are cheap and I have seen them do some funky things so I'd replace it.

What happens if you spray carburetor cleaner down the throat of the carburetor and then try to crank it?
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#7 robert_p43 OFFLINE  

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Posted November 28, 2012 - 01:43 PM

Forceps. Thanks Bill, I should have thought of that. I once used vise grips on a 72 Chevy Impalla on a front brake line so we could continue driving it till we could get the new one. (not recommending that) We only had to go back to pick them up once when I had to hit the brakes hard and fast.
I think I have a replacement plug so I will try that too. I started it with starting fluid. I had to spray it in 3 or 4 times before it stayed running.

#8 Guest_rat88_*

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Posted November 28, 2012 - 01:50 PM

Does it do this every time or just the first start of the day? If it will restart fine after sitting for an hour I would look in to a fuel pump rebuild kit while you are getting the tune up parts.

Edited by rat88, November 28, 2012 - 01:51 PM.

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#9 HDWildBill OFFLINE  

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Posted November 28, 2012 - 01:58 PM

I don't know what I would do with out my forceps. I use them to hold wired together for soldering, pinching fuel lines, hold small parts while I clean them etc.

#10 JRJ OFFLINE  

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Posted January 01, 2013 - 12:08 PM

Wondering if you ever got yout Scott squared away on the startin gissue.

 

Dick






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