76 evenrude 75 hp no go when throttle applied

[mace b]

carbs cleaned good spark tune

carbs cleaned good spark tune up done still no go when throttle applied 1976 evenrude 75hp on 24ft. pontoon

 

[ikia]

If the High speed jets are in

If the High speed jets are in fact clean ( you did remove them ) then a compression test is in order. Spark must jump a gap of 7/16" at each cylinder.Flywheel key has been checked.