Hello everyone

I have NSR 250 R2J.
1. Do anyone have drawing for little coupling which connect between carburetor and TPS (Throttle position sensor)?
2. According manual book for basic setting carburetor, please help me which one carburetor no 1, and which one number 2?
Is up cylinder (left side) are number one, and down cylinder (right side) are number 2?


thanks for your help