Makes for interesting translation.......

Here are some images to clean the idle valve

Mother screws out with 4 walnut, to make sure nothing is lost (feathers)

the Pistons in no case with emery grinding or something, gently clean it with brake cleaner and NOT Gewall pull out.

after cleaning back together and build a good spray with WD 40 / or similar

NO FAT take! this could be the Pistons on the housing glue!

the mother is about 4.5 mm deep reingedreht, please check with the appropriate gauge

BEFORE installing the valve are rubber rings to assess damage and also einsprühen.

the mother should be fitted with a tiny drop bolts securing against solve secured.