Dixie Chopper Magnum, 2550KO.

M

Mark H_NO

Well-Known Member
I have a manual on the motor, it covers ECV630, ECV 749 and a couple more. The manual says there is a compression release. I frequently have trouble starting, the starter engages, turns a little, and stops. Usually if I try a few times it works. If not, boosting the battery gets it running. Today, when it did the same, we pulled the spark plug, and cranked it to eliminate hydro lock. No fuel spray, and it started great when we put the plug back in. Is there a problem with the compression release? If so, what do I need to do? I mow with this every couple of weeks, a 5 acre property. It runs great once it starts. Here in Louisiana, we're nowhere near the winter off season. The battery is maybe a couple years old. I have charged it, and cleaned the battery, solenoid, and starter connections. All that helped, but it still does this sometimes.
 
That is the usual setting. I try to set both at .005 inch. Adjust the clearance for each valve with the opposite one fully open.
 
So, adjust valves, and observe operation of compression release. Exhaust valve opens just a bit on compression stroke?
 
I don't think that engine has a compression release. Manual says the engine with ACR is a pull start. What cold cranking AMP Battery do you have? If it is a 230 cranking amp battery it is too Small. I would get the biggest one I could find and try it.
 
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