My shifter started to shake when I downshift to 2nd and 1st gear. Only shakes when I hold in the clutch. It started to shake when I put 6 60% springs, Chimera V2 CNC Lifter Clutch Plate and straight up oil pump. I thought maybe hard racing shift shaft might help but it’s the same. I also try to put the IMS shifter but it doesn’t fit with my hard racing shift shaft. I’m trying to make my grom a stunt bike so I’m all new to this. Please help!