Hello scooter people. IF you have a 7 number spark plug, and you want more power and better spark, go on amazon and type in kymco performance spark plugs. You will see a yellow plug, a yellow might not come, BUT it will have a no# 14 on the plug,=a no#7. Your scooter came with a NGK cr7hsa plug, a good upgrade is the cr7hix, BUT if you want better outcomes, order the plugs seen. Its a Brisk naor14lgs it gives a worth while hug to a already good scooter. If you DONT have a #7 with an H plug, CALL brisk in Texas and they will figure out the right plug for you. ENJOY the ride pp.