which jet kit do i have

[Rowdy]

i recently bought a 92 750
it has full vance and hines exhaust k&n intake kit and some sort of jet kit. how do i know which stage kit is in there? i have the carbs apart now going through carbs 101, there are numbers on the jets. mains are 137.5 RD pilots are 32.5 with a square shape before the numbers and emulsion tubes are marked 608 with that square shape again followed by Y-1

also does anyone have an extra emulsion tube for this? one of the threads got messed up during removal..

[Jax]

PM Arsenic....he has experience with carbs....he rebuilds them for fun...

Just kidding on the for fun thing...he does rebuild them for profit though...

[arsenic]

pilot jets - stock
emulsion tubes - stock
main jets - not a clue
I do not have a tube BTW

[Rowdy]

weird that the jets are stock yet the needles are the adjustable type with the E clip? which normally come with a jet kit..

would the bike not start with these jets and the screws turned 2.25 turns out.
or should it start anyway?

[Kreylyn]

weird that the jets are stock yet the needles are the adjustable type with the E clip? which normally come with a jet kit..

would the bike not start with these jets and the screws turned 2.25 turns out.
or should it start anyway?

Pilot jets are stock, but may have been drilled if a stage 3 was installed.

Main jets are alot larger than stock (105 and 110 on #3). Stage 1 Jet kit from Factory Pro comes with 107.5 and 112.5 on #3.

Those jet sizes sound more like a stage 3 kit was installed. If that is the case, your pilot jets either need to be replaced for stock sizing, or turn out the air/fuel screws to 4 -4.5.

If you can get a clear picture of one of the needles, that would help alot.

Krey

[Rowdy]

i have it all bact together now will take pics if i rip it apart again.

the needles have a bunch of slots and the E clip i believe is on the 3rd slot down from the top.. this bike ran but real crappy would only run with choke closed, and it was revving around 4k i could open choke slightly and het it to 1.5 or 2 k but would stall any more than that. which is why i decided to clean the carbs, they were filthy, now clean and assembled will not start, with screws turned out 2 and a half turns. which should i try in more or out more?

[Kfreak]

You did prime the carb's? Right?

[Rowdy]

You did prime the carb's? Right?

yep

[scottynoface]

Well he said needle is on the 3rd clip from the top, which makes me think there are five total, which means DynoJet.

[Rowdy]

Well he said needle is on the 3rd clip from the top, which makes me think there are five total, which means DynoJet.

i didnt look too hard but i think there are 5 slots.

[Kfreak]

The a/f screws are set at what they should be. Air box sealed? Spark? I know my bike was hard to start on initial start up, but after that it was fine.

[Rowdy]

so 2.5 turns is ok range for that jet kit?
there are k&n pods 1 pod per 2 carbs (i know, i know omfg!! not k&n!) but it ran with them before. i will consider switching to sealed air box after i get it running. i did just order new plugs they should be in tomorrow. the plugs in there look decent, i have good spark and all 4 pipes got hot before i cleaned the carbs..

i really know nothing about bikes, but have alot of mechanic experience with cars..


thanks for all the input so far, really appreciate all the help..

[Kfreak]

When you cleaned the carb's, did you separate the carb bodies from each other?

[Rowdy]

i never seperated them but went through 2 cans of carb cleaner, and 1 can of compressed air

[Kfreak]

Did you change the emulsion tube that you messed with? Also did you put the "O" ring back in place that seals the tube to the carb body?