G4200 - Slow Revolutions on Start Cycle

kajun

Member

Equipment
M4700 ,G4200
Mar 28, 2017
42
3
8
St Francisville , La 70775
Guys:
Smokeless’s questions about his difficulty getting his G5200 started made me want to ask this . My new-to-me G4200 has always turned over slowly when starting .[ Brand new battery on acquisition ] It seemingly drags when it hits compression on each of its two cylinders . I figured this was just something unique to this two cylinder Kubota engine . It always starts in three or so revolutions so this hasn’t been a problem . After Smokeless put up his thread , I put my charger on the tractor and set it to the Start-Boost function to see if increased amperage would make it spin faster . There was no change . Can anybody guide me on how fast the starter should be spinning the engine . I enter my third year with the tractor this coming July .

Obliged .
 
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Dave_eng

Well-known member
Lifetime Member

Equipment
M7040, Nuffield 465
Oct 6, 2012
5,254
1,035
113
Williamstown Ontario Canada
Guys:
Smokeless’s questions about his difficulty getting his G5200 started made me want to ask this . My new-to-me G4200 has always turned over slowly when starting .[ Brand new battery on acquisition ] It seemingly drags when it hits compression on each of its two cylinders . I figured this was just something unique to this two cylinder Kubota engine . It always starts in three or so revolutions so this hasn’t been a problem . After Smokeless put up his thread , I put my charger on the tractor and set it to the Start-Boost function to see if increased amperage would make it spin faster . There was no change . Can anybody guide me on how fast the starter should be spinning the engine . I enter my third year with the tractor this coming July .

Obliged .
Please post some photos of the top of your battery. I would like to see the condition of your cables.

Also, the starter relies on contact with the engine block for its electrical ground. On older machines these mating surfaces get rusty degrading the ground path.

Dave
 
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