No power in foward gear. 1963 Starflite 75hp

[heryrg2711]

Hey guys. Got a question for you. Problem is it has now power in gear in water. When i rev in neutral it sounds nice and good but when i put into gear its like it becomes a 10hp engine, goes super slow and no power. I think it's the carb, i might decarb first see if it helps, then probably rebuild. Any ideas? here is some more info.

1963 Evinrude starflight 75hp attached to a arizona traveler 17', it has new ignition coil (msd blaster2) gives a good spark, new sparpk plugs gapped right, new spark plug wires, ballast resistor replaced 1.35 ohm, fuel filter, new timing belt, new break points and condenser.

So there is a good spark, so i believe it's not that. The fuel does get sucked in.
I think i will buy a carb rebuld kit and rebuild the carb. I was also planning to decarb it, should i do this after the rebuild or before, or is it not needed after proper rebuild and clean.

 

[Monte1961]

Re: No power in foward gear. 1963 Starflite 75hp

Check spark in all cylinders first just to make sure all are firing. The engine may sound ok in neutral and drop a cylinder in gear! Post results. BTW< a compression check would also be helpful to us. Good luck and post your results!

 

[heryrg2711]

Re: No power in foward gear. 1963 Starflite 75hp

Spark is good in all 4 cylinders, atleast when in neutral, i don't think the spark changes when it goes into gear right? I haven't been able to redo compression check(had problems last time), will try to do tomorrow.