zinger spark plug question

[03 ORANGE SHEE]

what plug are you using??, mines a denso shorty. a standard 250r or tri-z plug like a 8 or a 9 i think is going to be too long and hit the crown on the piston, or burn a hole in it.

[Cert88]

Im using an NGK BPR6HS

Service manual says BP6HS, the resistor isnt needed in this trike though

[03 ORANGE SHEE]

thank you.