I have a Chinese tractor. I have jump started it for years. So now I am trying to get it so it will start like it should.
I had a small automotive positive cable on it. I changed it to a large cable like on the 300D. I can hear the start click, and if I jump it, the engine spins slowly. Do I also need the larger cable on the neg? it has 15w40 oil and it is 40+ outside.
What else should I look at?
The tractor has a compression release, os it is not fighting the compression of the engine.

thanks

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83 300SD Dark Silver Dark brown inside