So after almost replacing the whole ignition another problem occurs.
i turn the key then engine turns then starts and idles but when i let go of the key it dies and sounds like a jet landing...? it just started happening....i still have to put in my new rotar and points but i don't think that is the problem does anyone know what could be causing this? maybe the ignition is what my friends tell me but i have no clue on how to diagnosis this. any help would be a dream :] I need my 7 back running before winter and i dont want to take it to a shop :[

 

That sounds like the starter motor continuing to spin after the magnet has disengaged

 

I'm not sure what could be causing the jet landing sound but I had a similar problem with the engine quiting. The engine would crank and run but as soon as I turned the key from the starting position to the run position the engine would quit. Turned out that the ignition system gets its power from two different circuits. one during the cranking operation and another from the "run" circuit. My problem was a simple blown fuse. Of course I didnt figure this out until I had replaced the ignition switch!!!!!Check all your fuses.

 

hm I mean I got the starter checked? well an eltrical test... how can I test it other wise

 

alright I'll check them I'll prob replace them all then but hmmm the noise is loud like a surging

 

what fuse was it that you replaced cause you're problem sounds just like mine

 

If I remember correctly it was the circuit labeled "Engine". A 20 amp fuse on the lower right in the fuse block on my '79.

 

ok I'm check it out in about 40 mins thanks if not then I'll think its the.ignition switch?

 

I do not think it will end up being the ignition switch. If the fuse is not the problem then I would find a tester and see if there is power going to the fuse panel on the engine circuit. Its most likely the fuse.

 

hmmm I'm charge in the battery now.. but I'm replace all the 20 amp fuses I can't find a engine circuit fuse in the manual

 

I really hope its not a wire cause I have no clue how to fix those... if I can't find what's wrong in going to try and take it to a shop