1978 johnson 70 fuel problems

hpshadow

Cadet
Joined
Oct 9, 2009
Messages
13
boat ran good little sluggish out of the hole than at the end of the day wont get on plane tryed two diffrent fuel tanks and lines right to motor took and cleaned carbs twice clean they were nothig in jets carbs sycn ok fuel pump new diaphram now going to get new pump and put new plugs in all lines tight new fuel hoses what would cuase this fed up:confused:
 

jtexas

Fleet Admiral
Joined
Oct 13, 2003
Messages
8,646
Re: 1978 johnson 70 fuel problems

Do a compression test and spark test. report your results.

When you cleaned the carbs did you install new kits?
What do the spark plugs look like after it's been running?
 

hpshadow

Cadet
Joined
Oct 9, 2009
Messages
13
Re: 1978 johnson 70 fuel problems

compression is good new kits in carb new ngks plugs were little wet
 
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