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1978 25hp evinrude. from full revs to idol while still at full throttle???? fuel system??

tillymay

New member
hi all, wont start now after running for hours. cleaned carby before i took it out ,seemed fairly clean for a 41 yr old lol. no carby kit . but i had it runnung in my test tank after and was running ok when i took it out today for couple hours it stopped on idol and when i whent to start again was hard to start and when i did get it started would only keep goin on full revs than came good and while i was on w.o.t went from full revs while driving to a sluggish idol while throttle still open for about 30secs than cut off and wouldnt start. plugs very wet .checked for spark and had plenty..i have been reading my seloc manual and suspect the carby.
i am in process of ordering a carby kit.
As always diagnosis is always the hardest part of a fix
any suggestions would be appreciated..
thanks very much
 
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