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78' 70hp Johnson idling issues

Damien77

Member
Hello, I have the above mentioned power source and I am having trouble getting a base idle dialed in. Just purchased,clean and what looks to be very low hours. Unit has good compression 120 across the board. Went through the carburetors,even replaced the idle orifices in each carb. Good spark on all cylinders, also replaced plugs just for piece of mind. Any ideas please let me know, I appreciate the help
 
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