What tricked said. Banshees have a wasted spark system. It should spark with almost no pause time between sparks. It should be a fast spark that is blue.
I always have. I have never taken the chance with rubber in the lemon juice. It's best to do it outside or Mrs. Jesse may kick your ass. If there is no Mrs. Jesse then open a window and go right ahead.
I agree with Willa. 1qt lemon juice to 5qts water. I always boil carbs. The carb dip I use to use before boiling until I learned about the lemon juice.
First off the filters weren't screwing with your throttle response. It was the pilot jet size or adjustment with the change in filters. If you put the lid back on your mix will be richer