The NGK BP7HS spark plug is a medium heat, projected firing tip, “short-reach” unit that works especially well on the Genuine Buddy 50 and other Genuine Scooter Company 50cc models. Description The NGK BP7HS spark plug is a medium heat, projected firing tip, “short-reach” unit that works especially well on the Genuine Buddy 50 and other Genuine Scooter Company 50cc models. WARNING California Residents : Proposition 65 Warning Specifications Name: NGK BP7HS Thread: 14 mm Reach: 1/2″ (12.7 mm) Heat: 7 (medium)