850 wants to be Green

dbNga

Member
I have friends '55 850. I have operated it in the past and it ran like a top. It sat for a year and the gas spoiled in it and I got it running by giving carb a hint of a cleaning job...not total disassembly. It ran fine for several hours Monday, sat overnight and when I started it up Tuesday it sound very much like a two cylinder John Deere. Ran it doing light bushhogging Tuesday for about two hours and skip/pop never changed, noticeable power loss. Scratching my head as to where to start...any suggestions? Thx.
 


A compression test will be as good a place as any. You will want to check them at some point anyway.
 
OP did not say anything about spark. Did he pull the plugs to inspect them? Or see if some wires got knocked loose?
 

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