i have a 2017 kymco 50 KG10SA scooter and did a complete rebuild with naraku parts from crank to top end and i have low compression 60psi. i am a auto mechanic by trade, i rechecked valve clearance thats good, did a cylinder leak down test thats good, removed exhaust to see if compression would get any better it went up to 65psi. i installed a KN100.47 big bore kit, and a KN100.13 cylinder head all naraku parts. any help would be appreciated why im getting low compression.
thanks Chris