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  #11  
Old 11-04-2010, 10:16 AM
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Matt G. Matt G. is offline
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hillbilly-

That's WAY too tight...intake is 0.006-0.008", exhaust is 0.014-0.018" or something like that. If you set the valve lash at 0.004" on the exhaust valve, it will run until the valve expands enough to close up the valve lash, and then the valve won't close all the way anymore.
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  #12  
Old 11-04-2010, 01:17 PM
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Valves have been adjusted to the manual - still almost impossible to start. I have researched this thing to death - tried this, tried that, check this, check that, etc. The only thing left is the ACR which is attached to the cam shaft on these Kawasaki engines. I can pull the engine and check to see if the ACR is bad, but I'm not that interested in doing that. If it is the ACR, it will need a new cam shaft which is NLA from both JD and Kawasaki.

I will say this, if I don't trade it, then one day I will tear into it. But I really don't have the time right now and kind of want it gone.
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  #13  
Old 11-04-2010, 03:00 PM
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Terry have you checked the choke? I had a JD240 with a 14hp Kawasaki in it that started really hard. Took it to the shop for a different issue broken gear in the trans. They fixed the trans and they adjusted the choke linkage because he had a hard time starting it also and wow what a difference.
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  #14  
Old 11-04-2010, 03:22 PM
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Choke and linkage is fine - in fact, I put a new carburetor on it - didn't help any.
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  #15  
Old 11-05-2010, 01:00 AM
hillbilly hillbilly is offline
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I know .004 sounds tight but there are motors in the deere line up that run that tight, they specificaly had problems with the acr not working. This comes first hand from working at the deere dealer.
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  #16  
Old 11-05-2010, 11:57 AM
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We're getting off-topic here, but the manual says .006 inch for valve clearance, looks like for both intake and exhaust.

One thing here is the manual states if the compression is over 100 psi, the ACR is malfunctioning. If under 71 psi, then check valve clearance. The reading I'm getting was 140 psi which per the manual indicates a malfunctioning ACR. Regardless I'm not going to spend any more time on this lawn tractor.
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  #17  
Old 11-06-2010, 12:33 AM
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Well, hopefully the next chap can fix it. Get both if ya can.
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  #18  
Old 11-06-2010, 12:36 AM
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If I trade, the guy who is going to get it has a 15 hp Kohler Command off of a JD LT155 that he's going to put on it.
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  #19  
Old 11-07-2010, 06:15 PM
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Default Brought home the 1250
I brought home the 1250 today. It is mostly complete, the only thing missing is the carb that I can see. I also have the engine side panels, they're just not shown. I also took pictures of the 1450 - it's in rough shape - someone tried to paint the fenders red.
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  #20  
Old 11-07-2010, 06:33 PM
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Congrats on the 1250, I really love mine.
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1973: 128, ag tires, 3pt. lift, spring assist, lights, 42" Deck

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2016 XT1 42" deck 18HP
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