i'm a letter carrier ,about 5 years ago a customer tells me he.s moving.i inquire about old 16 foot grumman in back yard he says i can have it and do i want the motor?i said yes sir !soi i take the motor right away to keep the ups guy or sombody else from scoring it.we go in basement and i see its on its side and the basement floods!sure enough the rope wont budge,i take it home, spray pb blaster remove recoil and use my electric impact driver to go back and forth light trigger of course.it frees up and i put it back together and it runs couple pulls !and idles fine .but when i have in gear just off idle to pick up decoys holding against the wind it misses then sputters right out ,but starts right away,also if i'm holding my place in line at launch same thing sputters dies but restarts no problem.ive adjusted the mixture nobs but no differance,also had carb off real clean like new inside ,did forcing flywheel break a ring or something else?thanks for your time.