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Why does my 4bt go wide open as soon as I start it ?

2K views 4 replies 5 participants last post by  caseystrawser1 
#1 ·
4bt straight to full throttle with no throttle response plz help
 
#2 ·
Just off the top off my brain governor spring, throttle shaft indexing or fuel screw in way too far.
Has the pump been opened and tinkered with?
 
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