Paul thanks , was waiting on your response., Thanks. Had old can of Gunk carb. cleaner, so got a new one. we have at shop a ulta sonic cleaner , don't know name brand. Holds about 1 1/2 to 2 pints.
, with basket. With heater ,we're using diesel fuel. In it.i set it at 42°c when I use.
I was able to get choke , lever and butter fly out. I took a 1/32 endmill. And drilled down about
.010 on each side of thangs. Then pried up. With small screw driver against small boss it came out , it was a half plastic retainer. Peened in . got it out. Removed throttle butterfly
.cause it's plastic up top. Soaked in Gunk. 1 gal can. Then put in ultra sonic cleaner for 30 mins. Put back together , and idle like a kitten. You are rite , those itty bittys have small passages u can't see. Thanks alot for your expertise. And MERRY CHRISTMAS