1982 gs550 stock Mikuni Air Jet size???

[Defore]

What is the stock size pilot air jet? The specs says 150 but i cant buy them that way it says stuff like .5, .7, 1, 1.2, 1.7, 1.9, 2 ect... also I have a stage 3 jet kit with 155 mains. Should I keep the stock size air jets?

[Steve]

WOW, your jets are HUGE.

What mods have you done to your engine to justify the 155 mains?
Even if those are DynoJet sizes, that is about the same as a 145 Mikuni jet.
Stock size is only 92.5, so you are up a whopping 21 sizes.

Anyway, ... you were asking about pilot air jets. The stock size, like you said, is 150. The MAIN air jet, the one on the other side of the carb (about the 4 o'clock position) is a 1.6, hence the confusion.

For the record, the stock pilot FUEL jet is 40.

.

[Defore]

Its what dynokit gave me...
Stage 3 Kits
Designed for motorcycles with stock or mildly modified engines using K&N individual air filters and a stock or aftermarket pipe. In most cases power increases of 10-15% can be achieved.However, drivability may be compromised particularly with short stroke high RPM motors. On some modern engine and airbox designs, individual filters and proper jetting offer no performance improvement, yet compromise drivability. In such cases stage 3 kits are not available.

and it came with 150 and 155's


so when I go to buy the pilot air jets there 1.6?
they are they jets that you see when you pull off the are box correct?

[gearhead13]

Hmmm.... I dont see a listing at dynojet for an '82 550. For what bike does your kit say?
I see a '82 Katana then 83-86 550 dual carb

[Defore]

Its the '82 Katana one.