[skyrider]

Thanks for responding! I took out the original plug and replaced it with the same NGK ER9EH($15). Torque driver meaning the pulley for the rear part of the belt under the clutch housing? So remove the fly wheel? All the youtube vids are in spanish. So would I need to just relube the inside of the pulley? The only other thing that I could have done was overtighten the driving pulley after putting in new rollers but I followed the manual "tighten the lock nut to 20NM then a final 90 degree locking" meaning I tightened it 90 degrees more. (But I've overtightened that nut on my Chinese scoot and never had a deceleration problem before.)