okay well i put a vice on the shift lever towards the back where the auto shifter and gear light sensors are, and put a little more pressure in the direction for drive, and boom, it works fine! so i adjusted the shift cable till drive stopped clicking, and now there's no neutral or reverse.
it rides good tho, but what could cause it to need more pressure for drive? I'm thinking the final drive gear. I'm gonna drain the oil and see if i can find any suspicious contamination