I have a couple questions if someone may know the answers.

1. Does the oem needle have any markings on it to identify it? If so please share as I found a few and am not 100% sure if I am running the oem needle.
2. The stock needle clip was on the 3rd from top correct?
3. The nut that tightens the needle jet down. How many threads should be showing? 3 to 4?
4. If I nail the throttle from a 1st gear rolling idle, there is a slight hesitation or bog then it goes. Does this mean to rich on my pilot?

Thanks in advance!