i just put in a rebuilt force 125 1989 motor in mine 1990 l-drive i had a 120 in it .and i found a 125 1989 model that was rebuilt.but the lower carb must have a float problem no.4 seems to flood out .my carbs off my 120 just were cleaned and rebuilt plus the air mixture scews are in front and easy to get too.would they work?comp. on all 4 clyinders is 148.at an idle it smokes real good ,i,m running the regular fuel - oil mixture now ,or will it takes a few tanks to clean it up.<br /> thanks guy or gals<br /> bob