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1979 115 HP Mercury Will NOT keep an idle

Eric610

New member
In May i bought a 1979 ranger from original owner . this boat and motor were well taken care of . i had it on the lake about 2 times a week with out any issues. This Sat. night i could not get it to run for the first time .
It will not idle with out giving it about 1/4 throttle and when i back it down to idle it shuts off , after this i replaced the fuel filter and put in 6 fresh spark plugs .It still wont idle this is my first boat and i am very green at this . Any ideas out there ?

Thanks for the help Eric....:confused:
 
a quick side note , it will throttle up and down till i hit the 1/4 throttle spot ...
my guess is the pilot screw ? or the throttle cable ? ......
 
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