no crank lots of power can get it after turning the key off and on like 20 time im thinking starter but wire all look fine grounds looks fine.

i turn key, volts read fine for cranking, but it just clicks 1 time a key turn, it does not keep clicking. any help where to look next?

 

have you checked voltage at the starter? if voltage looks good, then next thing i would try is to loosen the starter, and hold it in your hand as a friend or someone else tries to crank the motor. if the starter turns, then thats not the issue.

 

Sounds like a bad alternator to me possible starter problem.
Try a light tap on the side of the starter don’t dent it or anything.
I usually use the wooden end of the hammer and bang on it twice.
If it starts then it’s the starter.
Take the alternator to a small motor shop and have them check it and rewind it cost about 1$ per amp.
I put a 150amp kit in mine.