Hello Guys, I'm new to this forum. Thank you in advance for taking the time.
I recently had my daughters cylinders ported and the head shaved. I do not know the specs of the porting.
I dropped down to an 80 main, seems to run good on the top end with nice color on the plug.
There is almost no bottom end.
my question is, should I try changing pilot jet? Should I move needle position?
The quad is now pretty hard to start now too.
Thanks for any help and direction.

 

Welcome to the forums.
When porting you must modify the clutch's to work with the motor. Start with cutting the rear shoes down to 180 grams and go from there.

 

Thank you LT80, I'm on it.

 

After that, You might as well pull 2 rollers out.