stock jet size

[WDB_xs1100s]

i need to know the stock main jet size on my 79 special

[bikerphil]

42.5 pilot
137.5 main
180 air

[WDB_xs1100s]

ok thanks alot just found out its got 140 mains, i think its a little much for a stock bike with a 4-1 kerker

[yamahansolo]

No you have a kerker... not stock... what size was your airjets some 79 F's came with 140 mains 45 pilots and 210 airjets. You can see it in the parts fische.
Mine did.