humm... I thing I've just  t he cap of the carb... it had a vent on top side which most BST40's do not have.
Since that vent had already been closed-covered it from the top and inside AND since the Grizzly carb doesn't have it, I went and cut the top vent! 
Now I got a 6.5mm hole on the top of the carb cap which I have to "close" it
Any ideas on how to fix this besides getting a new cap? it's about 45USD plus shipping :confused1:
Vando
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