The best plug to use for that machine would be NGK BPR9ES,can buy them at any automotive store.
Bp6hs
Nrg br8 es
1985 Yamaha YZ 80 and the stunts were done by a stunt double on a 1985 Yamaha YZ 250
b8es NGK
part #: NGKDPR8EA-9
For a Ngk plug it is a: NGK DR8EA
between .28 - .31" for any kind of spark plug you decide to use in your Phazer.
Bpr4hs
Yamaha
Yamaha Blasters take unleaded gas only.
15w/30 but that is hard to find so I use15w/40
what kind of car?