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#1
12-04-2011, 12:18 AM
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1250 a bit of help needed
Hello all, I have a problem starting my 1250. Have a new HD battery but it acts like there is just too much compression to turn over. If I turn it with a pry bar on the front it will turn over and start. Once started it runs very well but getting started is a pain in the backside. A friend suggested checking the valves but like I said once it starts it runs very well. Any suggestions??
jerry 
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#2
12-04-2011, 07:04 AM
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Check your battery connections & cables, ESPECIALLY the Ground. Make sure the connections are clean, polished, and tight. It wouldn't hurt to add an extra ground cable from the Chassis Frame to the Motor Block.
Next, I would check the Motor ACR mechanism to see if that is working correctly.
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[B]Roland Bedell[/B] CC Models: 100, 105, 1450, 782, (2) 784, & 2072 [SIZE="4"][B][COLOR="Red"]Buy:[/COLOR][COLOR="Blue"] Made in the USA[/COLOR][/B] [/SIZE]:American Flag 1:
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#3
12-04-2011, 06:29 PM
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Jerry,
I think Roland is right that you should look into electrical first. But just as some background info on what you're experiencing, the K series engines have a compression relief feature to make them easier to turn over. Every other revolution (at low RPMs,) the exhaust valve opens slightly to lower compression and make the engine easier to turn. So by using a crow bar, you're moving the engine off the full-compression stroke to the relief stroke, which is giving your starting system a "running start" at turning it over, which will help if your starting system is a little weak. I'd imagine that's what your friend is talking about when he suggests checking the valves. But your problem is most likely electrical.
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#4
12-04-2011, 08:38 PM
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Thanks guys, I have checked the electrical pretty well up to this point. Wire brushed the connections, removed, cleaned and retightened everything. The direct ground to the block might be a consideration. I am thinking a hard wire to the frame near the block, bolt it down and add a ribbon to the block. Trying to head off the inevitable break with all of the bouncing around. Maybe overkill but can I have too much ground? I'll try that this week and get back to you.
Jerry
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#5
12-04-2011, 09:03 PM
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My 1250 acted very similar to yours. The issue turned out to be a very dirty starter. The guy that bought it from me, took the starter apart and cleaned the starter real good and said it now starts like a new one.
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DWayne 1973: 128, ag tires, 3pt. lift, spring assist, lights, 42" Deck 10" moldboard plow 2016 XT1 42" deck 18HP
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#6
12-04-2011, 09:31 PM
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I was having this same problem last week. They're should be a factory ground near the coil to the frame on the firewall mounting bolt. I checked and cleaned every other connection on the tractor and no change. I filed and reattached the engine ground and it started cranking like a champ!
Oddly enough it also cleaned up my intermittent spark problem as well.....
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129 149 1250 42" dozer blade 42"snow thrower 3 42" mowers 42" tiller Brinley box blade Cozy Cab hard body cab
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