This Jet Kit Fits 81-83 Yamaha XJ550 XJ 550 SECA Mikuni. 

Stock sizes

You get Whats In Photo.

(notice this type of pilot jet does not have the bleed holes in the side)

This kits includes a set of 4 stock Pilot Jets (#35),

 a set of 4 one size larger Main Jets (#112.5) 

 for motorcycles with stock engine and with stock air intake and stock exhaust system .