I'm having problems with my Suzuki , it starts fine but will only run with a bit of choke , and without it's hunting. No it's not dirty jets , iv'e blown through all the jets with the air line , have tried 3 carbs. all cleaned beforehand , have tried 3 tanks, still exactly the same. Only thing I can think of is crank seals.
Has anybody come across this ?.
Would welcome any suggestions.

Richard, May 2009

Possibly partially blocked mufflet/port (this will reduce transfer efficiancy in tha same way as work seals).

Other than that, I agree with your diagnosis.

phil_saunders(a)bigfoot.com

Phil Saunders, May 2009