my sirio 27 overheated and wore out my sleeve. Had it resized then after break in the motor idles wicked sluggish and wont respond to adjusting the low needle , just idles rich and stalls out. Bought a carb o ring kit and installed and the dam motor does the same thing , like a air leak.

Went over the whole motor and can't figure it out !!!
the low needle makes no affect no matter how it's adjusted. all key parts are sealed with red silicone nice and neat too.


Update , Forgot to mention , that the carb sprays fuel out while it's idling.
I'm about ready to take this $370 motor and smash it with a hammer.

just removed the motor and took apart to make sure the sleeve was in right , and that the piston wasn't in backwards.

I'm loosing my mind , and need help.

I wish i knew what carb would replace this one ? the 25ss neck is too small and the 21ss and the ofna 26 carb is too small.