i have a craftsman 6.75 engine number 143.016728 model ytpxs-1951ba that has problems. first problem is the common hard to start and stalling problem probably carb. the main problem is that when i do get it running it revs all the way up. i think there is something wrong with the govenor? i put a manual throttle adjustment on it last year so i could manually move the govenor lever and i could get it to run fine. i managed to cut with it the whole summer last year like this.i put a manual throttle adjust up on the push bar so i could adjust as needed. once i got it adjusted i didnt really need to touch it while i mowed the grass. even when i would shut it off to empy the bag it always started right up and ran fine. anyone have any ideas?? does anyone have a manual in pdf for this mower?????? thanks for any help.