Mio 59 bore knocking, pinging, pre-egnition & detonation

JVT 59 CB w/ 2 green gasket
JVT 5 Turns Valve spring
JVt J15 cams
Stock Cylinder Head w/ gasket
Stock carb 38/118 jettings
JVT pulley set & DF
JVT Bell & Clutch lining
1k center & 1k clutch spring
54g roller 3x9 3x10g
Hgm power pipe

Bigla full throttle nagna-knock
Dahan-dahan piga sa dulo may ksssst sound
Delayed ang response angil muna bago tumakbo

Patulong naman mga expert jan para daw kasing hindi naka 59 mio ko