motor pink

[grizzly3p]

hi I'm french, i try to explan my trouble.
1. My motor pink a lot when i do acceleration, i use super of gaz
2. when i do a ride and i stablish at 110 km or up the big vibration come and my teeth do like cold claq, claq claq.
3. on 4 speed at 100 km with rpm at 3 000 the engine to tong tong tong like a loose motor.
it's my first real custom bike. all the rest is very like i want. i drive around 20 years a race and sport touring. i think that engine are not good. do i'm thinking right? thanks