TAIZHOU AURORA 50 keeps stalling out By chazdo2 (Read 260 times)

[chazdo2]

  I have this scooter trying to fix for a friend.  It will run for about a minute slow down and stall.  The spark plug gets all sooty and black looks like a real rich mixture.  Here is what I have done hasnt helped.

1: new plug
2: new petcock thought the old was leaking into vacuum line.
3: cleaned carb very well float works fine.
4: auto choke works on the bench with 12 volts dc
5: according to what I read the choke in the bike has 18volts ac and that is suppose to be good enough? no dc to it
6: all stock jetting

  Am going nuts any and all help much appreciated!!!!!!

[kz1000st]

Check the air filter and air box. Rich is black and wet. Black and sooty is usually an indication of air being choked off to the carburetor.

[chazdo2]

Thank you!!!!