While mowing today, my 420 lawn tractor started shaking. I thought it might be mower deck related so disengaged it. Tractor continued to shake. Then thought it might be because of a bad spark plug. Changed them and the engine starts better now but it still has the shake. Suggestions on what to try or look for are appreciated.
JD 420 shaking
- Thread starter bobag
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- john deere 420
Acehardly
Bronze Member
You may want to check your driveshaft u-joints. when they start to go, the tractor will shake while running.
Tony
Tony