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I have a mower with kohler cv20 engine. Has started being hard to crank, now wont crank unless spray carb cleaner in carb, then runs fine. I have checked fuel pump, pumps good, blown lines and clear, and I assume fuel shutoff solenoid is good since runs after spraying shot in carb to get started. Any suggestions to look now?

You need to clean the float bowl and main jet, plus make sure that the choke is fully closing.

Rivets said:

You need to clean the float bowl and main jet, plus make sure that the choke is fully closing.

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thanks i will, i hope it is as simple as adjusting choke but i have not checked that