Zyl 1 140 PSI black deposits frown
Zyl 2 165 PSI normal brown/with
Zyl 3 160 PSI normal
Zyl 4 160 PSY normal

gap all 0,7mm

all BCP R6 E NGK R



Don't Worry, Be Happy
Morgan 4/4 1985 2,0 Zetec
BMW R1200 GS
Triumph TR140