High Revolution Head Ignition Timing Modification Copper Plug Bushing 1.0/1.5mm Thickness APE50-100/XR50-100/NSF100

【SHIFT UP 201011-PB High Revolution Head-Specific Ignition Timing Alteration Copper Plug Bushing Thickness 1.0/1.5mm for APE50-100/XR50-100/NSF100 SHIFT UP 201011-pb】
Shift Up repair parts
This plug bush allows you to retard the ignition timing.
Compatible models: APE50-100/XR50-100/NSF100
For 48.96mm stroke: *t=1.0 for 50cc 5.7°, 100cc 7.3°; *t=1.5 for 50cc 9.2°, 100cc 10.2°
For 56.5mm stroke: *t=1.0 for 50cc 4.9°, 100cc 6.5°; *t=1.5 for 50cc 7.8°, 100cc 9.1°
*Images are for illustration purposes only. Designs and specifications of products shown may change without prior notice. Thank you for your understanding.