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Model#917.276020 25hp 48'' craftsman kohlor twin This tractor did a great first cut, but 1 week later it wont start I changed the following: plugs oil filter air filter fuel filter( yes the right direction) put a few drops of fuel in the carb and it started. There is fuel in the fuel filter. I am not sure about the pulse pump or the shut off? Help

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On the bottom of the carb., there is an anti-after fire solenoid, take it off and make sure that it is working with the key switch, it should retract when the key is turned on and go back out when the key is turned off, if it doesn't check the red wire to make sure it is still connected

Posted on Apr 24, 2009

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Mts 5500 tractor


I have a Sears MTS 5500 tractor, 24 hp, 48" mower, bought new 2008 but used very little; only 127 hours on it. Soon after starting, tractor emits a heavy white smoke. Tried changing the oil, no help. The engine is B & S Extended Live Series, twin cylinders, total displacement .725 liters. Any ideas of what is causing this?

Jul 21, 2012 | Craftsman Garden

1 Answer

Have a 19.5 HP Twin B&S with a 46" cut model father in laws whioch hasnt started for years. He has neen cutting his yard with a push mower, but had a heart attack 2 weeks ago and has asked me to...


Hi and welcome to FixYa, I am Kelly I just answered another post and your question appeared after my posting. I see it is 2 days old. I am right now looking up the engine and the wiring diagram.
To get ignition you must have:
1. A full oil level. The engine has a low oil level sensor that will kill ignition if the oil level is low.
2. A a working clutch brake pedal switch
3. Someone sitting in the seat.
4. PTO clutch dis-engaged
5. Key in run or start.

Without all of the above you will not get ignition and the start solenoid will not cycle. (Start solenoid does not go through the oil level sensor.)

From what I can tell this is the 19.5 Hp Briggs and Stratton 42E707-2631-E1

I tried crossing the model number to a manual and the closest I could get was the manual with the same model number as yours except the last digit is a 1 vs a 3 Manual link below.

http://www.managemylife.com/mmh/lis_pdf/OWNM/L1003205.pdf

^^-

Mower parts are here:
http://www.searspartsdirect.com/partsdirect/part-model/Craftsman-Parts/Riding-mower-tractor-Parts/Model-917258673/0247/1509200/10052812/00005?blt=06&prst=0&shdMod=917258673
Note the diagrams under the picture. Each of those thumbnail pictures will open a new section.

I think once you sort out the switches that you will get both the start solenoid and the ignition to work.
Since this mower has been sitting for sometime you should probably check out the PTO clutch gap. There are 3 spring loaded bolts / nuts and there are 3 slots in the PTO clutch. Static the gap in the clutch must be 0.020. Otherwise you will not only have starting problems but blade engagement problems. Adjust the 3 bolts/nuts until you get a 0.020 gap. That should make the switches in the PTO clutch work. Just look at the wiring for any damage around the PTO clutch also... A previously thrown belt can trash the clutch wiring.

After the PTO clutch your checkin Brake.clutch pedal switch and the seat pedal switch.
For troubleshooting only you can disconnect ONE wire from the oil level sensor to see if you get spark.

I recommend you get the starter to work normally first and then troubleshoot ignition. Because except for the low oil level sensor they are common.

Safety switches can for troubleshooing only be bypassed by running a jumper wire from the white wire of the key switch to the starter solenoid white wire connection. If the starter works by doing this and does NOT work without the jumper... you have safety switch problems.

Hopefully with this information you can revive this mower from hibernation.
Feel free to ask any questions anytime I will stick with you here until we figure it out.
Thanks for choosing FixYa,
Kelly

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1 Answer

I have a craftsman LT1000 with a B S 20 hp twin motor. Recently it started backfiring after it runs for about 10 minutes. Only after it's warm it backfires. I changed the oil and filter, plugs,fuel filter...


Carb is running a tad rich and the fuel collects in the muffler. My 20 twin has done it since I bought the thing and that was almost 8 years ago.
Cut the engine idle down before you cut the key off and minimize the bang.
Someone else may give a better explanation of the why but it is just annoying and personally after rebuilding the carb and checking the fuel pump on mine it still does it on occasion. Hasn't hurt a thing on in all these years and I actually thing it blows the soot out of the muffler when it does.

Jun 09, 2010 | Craftsman 20 hp 42 in. Deck Lawn Tractor -...

1 Answer

Engine piston


SOUNDS like you have done a big end and when the oil gets warm the oil gets thinner and so doesent lub the engine so good and what you can hear is the piston either hitting the head or the bigend worn bearings on 1 cylinder banging on the crankshaft as they have to have oil there to lub and to pressure the bearings while running SO WHEN you get it rebuilt change your oil to a 20W40 in winter and 20W50 in summer and change it every 50 hrs for your own sake.

Oct 29, 2009 | Craftsman 24 Hp 48" Deck Yard Tractor

1 Answer

Engine won't Start


If you have 3 qts. of oil in your mower, drain it immediately. It only holds 3 PINTS or 48 ozs or 1 1/2 qts. Next, remove your spark plug and put the end away from the hole (to prevent possible arching and fire) and crank the engine over. Probably, a lot of oil/gas will blow out, clearing your cylinder. Clean the plug and try to restart. If it still reaches a point where the engine will not turn past while trying to crank, the valves need to be readjusted. Also check by smelling the dipstick that there is no gas mixed in the oil. That would mean your carb needle and seat are leaking.

May 24, 2009 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

1 Answer

I have a Craftsman lawn tractor 21.5 hp, model no. 917.272463. The engine starts well, but while running it spits and sputters every second or so, whether at idle or at full throttle. I changed the fuel...


Try changing the its oil-seals. The problem lies there. It may be damaged or the oil-seals are now smaller than its is used to and it is because of the heat. The oil-seal are rounded things that are made of rubber.

May 09, 2009 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

4 Answers

Craftsman II mowre oil capacity and filter type


Hi,
The outstanding Briggs opposed twin engines have an oil capacity of 1.5 qts. The recommended oil is 10w30 full synthetic and 50 hour change intervals. Some engines were equipped with an oil filter, if so, the capacity is 1.7 qts. fantastic engines, take care of it.

Mar 28, 2009 | Craftsman 42 in. Deck 19.5hp Lawn Tractor

2 Answers

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Sep 21, 2008 | Craftsman 24 Hp 48" Deck Yard Tractor

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