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Gjac's avatar
Gjac
Explorer III
Sep 08, 2021

Kohler 5CKM21 no compression in both cylinders

Finally got to go camping last week, started the genset to heat lunch, it started right up, ran for no more than 10 mins then died. Would not start again. Checked fuel pump plenty of fuel squirted out...
Gjac's avatar
Gjac
Explorer III
Sep 09, 2021
bgum wrote:
Did you pull the plugs to see if the pistons are moving up and down as they should? I know you said they were dry but did you check the pistons?
Put a plastic straw into spark plug holes and pistons are defiantly moving up and down. Also put a cap full of oil in cylinder and compression only came up slightly may be to 15 psi.

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