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I have electric mower but only 5,000 sq ft. I could not imagine using electric for 3 times or 15,000 sq ft lawn. I would need 4 - 40 volt batteries for such a job, and in truth, it has not much torque. I doubt it would last for 20 years, as a matter, i would bet it fails before 20 years. Yes...

I use gas pump and mix my own. Once done sawing, I drain the saw, turn over and drain tank, then run dry dry. No problems as ethanol gas is gone when I am done using saw. If pre-mix is "old" I use in my older car/truck and get a new batch. I cannot get ethanol free but would if I could.

quality and long life.

if your soil is way off chemically, a paid for company will take your money and never apply the right chemicals to fix chemistry. Gotta fix it, then seed.

after cleaning or replacing plug, did you chjeck oil before pulling it. Then try 2 cycle gas and or ether to determine of combustion is there. If runs for few seconds, then is fuel related. remove ALL ALL old fuel and try clean fresh fuel. does gas flow down line to carb? then is carb issue and...

If it worked and you did muck the internals, then the valves are opening and closing properly as it worked before. I doubt you have a compression issue, but if you have or can borrow a compression meter, now is the time to use it. next. SPARK: Does your spark meter spark or not? next GAS - is...

sounds like keep an eye on it after every use. regular maintenance and in your case, a watchful eye. simple as probably a 3/8 square bolt to remove and inspect/fill. less than 5 minutes after 1st time.

Maybe a bad load of gas? Since it ran fine in the past with the "old" plug, what changed was gas. If true, drain lines, carb, tank and get a new load of gas.

dirty contacts somewhere.

For everyone, battery cables go BAD on the INSIDE. I see this more with cars and acid splash where the inside (covered with shielding) is hollow or gone. I would test the cable before replacing it. Hate to buy things not needed.

If you overfill with NEW OIL, and drain some out, the oil is REUSABLE. Don't overfill, and if you do, save it for next time. Also, do it more than every 4 years. Your 2012 mower is better than what you can buy today, so be good to it.

Drain, remove, wash with hot soap and water, then dry. Reverse blow out fuel filter and or change as needed. Make certain you re-install in same direction so use phone to take picture before disassembly. Blow out gas hose/lines to be clean and empty including line from fuel pump to carb. Get...

I wonder if it is overheating. It is cold at first, then warms up pretty quickly so I would expect failure sooner, but if grass in the shroud is preventing cooling, coils and such will overheat. It may be fuel delivery associated. I would reverse blow out the fuel filter, and test the fuel pump...

Best diagnostic thread in a while. Thanks to all people who added thoughts.

I have had female-female connectors in the past. Inside diameter uncertain. They exist.

You did not confirm it was the solenoid. You thought it was. Get more fuses, wait till it happens again, then run the experiment that the solenoid is bad. Is it really?

I like ruling out possibilities. I would check the valves as suggested above. I would BLOW OUT OLD GAS AND TANK and start aclean. Just reverse blow fuel filter, do not change again. Blow out line from carb to pump, and test pump by taking output hose and dumping fuel into container to see if...

UPDATE - FIXED - kinda I replaced the belt with a NEW MTD OEM but no fix. I then did this mod (see image) to "hold" the lever so that I could steer and control the speed at the same time. Since I doubt it is cable stretch, I am baffled, but this works. THANKS TO EVERYBODY who had suggestions.

Agree clean ALL contacts including FRAME and STARTER. Load test battery as suggested aboove. If you have an extr battery, just jump this one with a know strong battery and run the experiment. Sure solenoid may be bad, but lets rule out battery first. Clean solenoid contacts but doubt it is it...

I agree that the meter drain is minimal (< 10Ma). However, if it should be off, this is a symppton that MAYBE something else is on at the same time. Use your volt/ohm/amp meter and measure parasitic draw by placing meter on AMPS, moving red lead to proper hole, and connecting between battery and...

Are pictures of a "new" machine. Looks crusty, rusty, and years old.

If you can turn it over easily with plugs out and a wrench, then try starter. It will not start but tel you you did the valves backwards. Could be valve rods are bent or something. Yes, try with plugs out so no compression.

Can yopu not get a used one off a doner mower? I would.

I know this sounds wrong, but when it does not start, could you try a quick shot of starting fulid or similar. I just want to rule out fuel 100%. We have not ruled out fuel. also: when not starting, pull plugs, blow out cylinders by running starter, then attach plugs and try again. this rules...

Innertube was my first thought. Keep it simple. good luck

We have NOT PROVEN this is th problem. You guys simple believe it is at fault. How do we PROVE that is the fault?

MTD service https://portal.mtdproducts.eu/whb/WHB_SM_LT5_part_1.pdf https://portal.mtdproducts.eu/whb/WHB_SM_LT5_part_2.pdf https://portal.mtdproducts.eu/whb/WHB_SM_LT5_part_3.pdf MTD 700 similar to craftsman LT 2500 helped me out. engine, see manufacture, I use u-tube and wrench, rarely...

MTD 700 manual found here https://portal.mtdproducts.eu/whb/WHB_SM_LT5_part_1.pdf surprisingly, it had some info I needed for MY mower (LT 2500).

I guess we will never know. I think it is better to publish the solution so that we know after the first reading. Time is precious.

Thank you for your thoughts. Will add model and sn from now on. . Any thoughts appreciated. since belt new (MTD) and deck cleaned, painted, and lubricated, and have sprin below driver seat, CAN A CABLE STRETCH?? It looks fine. LX 2500. 247.289150

Thanks for the update, but AGAIN I NEVER LEAVE OLD GAS IN TANK OR CARB. I DRAIN AND RUN DRY. NEVER HAD A STALE GAS ISSUE DOING IT THIS WAY. (ALSO MY CHAINSAWS. I RUN THEM, DRAIN GAS, RUN DRY ALWAYS), AND THEY ARE GOOD FOR 5-8 YEARS UNTIL NEED NEW REBUIld. My 2 cents again.

Bummer to pay good money and be abused by dealership. Guess I will stay with used machines and fix and go as needed. I can fix faster than most of these posts.

craftsman LX 2500. 247.289150 Runs great, got used from friend. Must HOLD BLADE ENGAGEMENT HANDLE DOWN while riding. After de-rusting deck (all moves and lubricated) and replacing blade belt (waste of money) could not find cause of why handle will not stay engaged allowing me to use right...

I WASH OUT FUEL TANKS when I get a new power device (lawnmower saw snowblower ...). I also replace fuel line if it looks crusty. This saves me sooooo much time as I do not buy parts which are not required. How about the gas cap causing a vaccum. Try with gas cap loose. as for the diod. Why...

I agree float valve, and NOT his fault. For winter use, I like the antifreeze if you want, I just run it dry, gas tank EMPTYYYYYY, NOT stabilized. I DO NOT believe in sterilizer over winter except for emergency generator. run carb dry, tank dry, pump dry. Have a merry christmas.

JD screwed all new owners. They sucker you into a proprietary oil filter which costs 50-100 instead of a standard 8$ filter. See utube video on converting to generic filter.

Cannot help, but TAKE PICTURES when disassembling. I take 3 times more than shoul, but have all angles when I need them. Pictures are free.

Agree manual wins, do what they say. Nothing wrong with 30 weight. More important is regular changes, and change at end of season when last run and drain gas until coughs out of gas. Anything else is evil. fresh gas in spring, not last years gas. filter also. do not trust former owner.

I have used PB BLASTER fo 5 to 10 days in a row. Every day hit with hammer, but does not work. BLAST again because maybe crack in rust allows BLASTER to penetrate more. Did a snowblower gear this way. In my case maybe heat would have worked faster, but one day, gear just moved.

CRAFTSMAN HELP PLEASE - my lever will not stay down. Did you fix it? - what did you replace deck