On the cub cadet 2282 I picked up and am fighting. I finally got the engine to fire up and run, but it will only run with choke almost completely closed ( like 9/10's closed). I wanted to adjust the idle jets, but there AREN'T any. It has a new kehein 24 053 32 carb on it, bit where the adjustment screws should be are just brass inserts. What the heck? Did the previous owner ( who installed this carb, before he gave up on it a few years back) miss a step? Was he supposed to swap the screws from the old to the new? weird question, but I scratching my head over this.