[-Chulada-]

well i finally got around to pulling apart a set of carbs i picked up as a back up last year and found to my good fortune they have been jetted (to bad my dumb ass didn't look sooner!!) is their any way of telling what is in here (stage kit and manufacturer??) also what are everyones thoughts on adding a flo-commander to my 99 r6 that has been jetted (now that i know i have them--i'm a dumb ass) and i'm going to be running an 03 exhaust which is a bit larger

 

[Hillsy]

If by "flo-commander" you mean power commander, they're only for fuel injected motors to adjust the fuel mix. You don't need them with carbs.
Don't know how to identify what jet kit you have in - but I think Dynojets are stamped DJ. I wouldn't worry too much about it anyway if you're going to change your exhaust - just take it to a dyno-tuner to get it jetted for the new pipes.

 

[-Chulada-]

no i mean flo-commander (check it out www.flo-commander.com )
i have been hearing mix things about them. as for the jet kit i want to know more or less for informational purposes

 

[skr00zloose]

no offense, but that flow commander looks like it's just one more tuning headache. adding complexity to an already somewhat complex devise to me is not a great idea. once the carbs are tuned right with a normal style jetting setup, you shouldn't have to mess with them much unless you do some serious elevation changes on a regular basis.

more techno gadgetry is just more stuff to fail. .02

as for the jetting, dynojet needles are stamped DJ, and factory pro main jets are stamped too.

 

[spyder]

as for the jetting, dynojet needles are stamped DJ, and factory pro main jets are stamped too.

Yep.. check the main's to see if that have Factory Pro stamped on them around the side. If you DO see the stamp on the mains then go and pull one of the needle jets out, if it is adjutable with an e-clip or is it is silver (titanium) its jetted with a stage 3 kit.

Stage 1 kits allow you to run the air box, Stage 3 and stage 5 jet kits only run with individual K&N filters w/no air box.

Also check to see if the air fuel mixture screw's are exposed. If you dont see a small screw (like it has an aluminum cap or coverover it) that will tell you 1 of 2 things..
1) They arent jetted (you always adjust the air fuel mixture screw's when jetting)
2) OR if you do find aftermarket jets inside ,the doorknob that jetted it didnt do it right.

They are located on the out side of the carb's but directly next to the float bowl's.

Factory Pro's jet kits come like so..

Stage 1:
Main jets
Primary jet's (sometimes)

Stage 3:

1 or a couple SET's of Main jet's
1 set of Primary jet's
4 needle jet's
and Springs (not always)

Size of the jet's vary depending on make, model, and what stage the jet kit is.

Assuming that flow commander adjust's the air fuel mixture screw's it COULD be jetted, but that thing sound tempermental. skrooz is right though, if its done right you wont need that damn thing on there

 

[skr00zloose]

i didn't look at it too close, maybe i should. that flow commander is controlling the mixture screws? what the helll is the point of that?

i'm gonna have to go have a better look and actually read the description, i assumed it was somehow controlling main jet size.

 

[-Chulada-]

i haven't picked that thing up yet. i heard about it, check out the web page and thought i would ask for some opions. i think its alittle over kill but i didn't know if someone might have one and been like "oh ya i threw it on and blah blah blah."

i didn't see any stamp or marking on the needle and the screw is exposed the main jet has an e-clip and two siver washers on top of it. i am running an airbox so it must be 1

 

[Hillsy]

i haven't picked that thing up yet. i heard about it, check out the web page and thought i would ask for some opions. i think its alittle over kill but i didn't know if someone might have one and been like "oh ya i threw it on and blah blah blah."

i didn't see any stamp or marking on the needle and the screw is exposed the main jet has an e-clip and two siver washers on top of it. i am running an airbox so it must be 1

That's not your main jet - that's either your needles or idle screws. You need to take off your float bowls to see your main and pilot jets.

 

[-Chulada-]

isn't that the main needle on the left?? thats what came out when i took the cover off

 

[Hillsy]

Your main and pilot jets sit inside the float bowl. The needle controls the amount the main jet is allowed to open.
Basically you have 5 things to adjust in CV carbs - main jet, slide needle, pilot jet, float height and idle mixture screw. You start with the main jet (full throttle) and work your way down to idle screws. Check out this site:

http://www.factorypro.com/

Search for CV Carb Tuning - it goes into great detail about how it's done - and why it's quickest to use a dyno.

 

[spyder]

i haven't picked that thing up yet. i heard about it, check out the web page and thought i would ask for some opions. i think its alittle over kill but i didn't know if someone might have one and been like "oh ya i threw it on and blah blah blah."

i didn't see any stamp or marking on the needle and the screw is exposed the main jet has an e-clip and two siver washers on top of it. i am running an airbox so it must be 1

That is a factory pro kit.. They usually do the washer on top, washer on bottom application. Yep the air fuel mixture screw is exposed too DONT TOUCH THAT!!!!

Pull the float bowl off(it should be held on by 4 allen head screw's), and the largest brass jet inside should be taken out by a flat head screw driver. Take it out and look along the side of the jet.. you should see a number stamped into it along with Factory Pro

 

[-Chulada-]

spyder thanks for the info, don't worry i wasn't planning on fucking with that screw on my own, a freind on mine is a yamaha tech i'm going to wait for him to help with a full disassembly and cleaning. i broke into it early and put this post up because i was excited to find the kit i just HAD to know what it was.

Is anyone on this forum set up to make custom cables? i need a clutch cable done. motion pro quoted me at $57.00 and 10 days. i was going to make it myself but i don't want to by 100' of cable (the smallest length i found) just for one clutch cable. if anyone can help me on this it would be great i'm kinda at a loss. (first timer here)
thanks again guys for your help

 

[dogbreath]

God damn carburators.

 

[mpls|cafe|racer]

God damn carburators.

Oh they're not that bad. I'd take carbs over the headaches of all the sensors and electrical bullshit associated with modifying and upgrading FI systems. lol

Once you read up on carbs and get a grasp on how they work they really are retarded basic.

I mean, they haven't really changed since the early 1900's.

 

[dogbreath]

I like EFI better.

 

[skr00zloose]

Oh they're not that bad. I'd take carbs over the headaches of all the sensors and electrical bullshit associated with modifying and upgrading FI systems. lol

Once you read up on carbs and get a grasp on how they work they really are retarded basic.

I mean, they haven't really changed since the early 1900's.

that's an old skkol "it ain't broke, so why fix it" mentality, lol. rock on.

 

[Hillsy]

Hey Chu - email Marc at Factory Pro:

[email protected]

He should be able to send you the recommended set-up specs for the kit (they came with the kit for my ZX9). Also, if the idle screws (air mixture screws) have been exposed, you can bet someone's messed with them (and they're probably not right).

 

[-Chulada-]

hillsy thx for the info. i'll contact him so i have a reference. i'm putting on an 03 exhaust which is about .250 larger so i'm going to have to get it retuned anyway.

 

[Hillsy]

i didn't look at it too close, maybe i should. that flow commander is controlling the mixture screws? what the helll is the point of that?

i'm gonna have to go have a better look and actually read the description, i assumed it was somehow controlling main jet size.

I haven't seen this thing before, but it appears to work by controlling the air jet flow (even remotely, apparantly) and balancing it between the carbs. This would work if your carbs are running lean (as you could restrict the flow through the air jets to richen) but would be of little use when rich.
Kinda sounds like a fix for something that wasn't done right in the first place, though.....

 

[mpls|cafe|racer]

I like EFI better.

The only time EFI is cool is with Megasquirt or some other S.E.M. system. Mapping shit out is pretty cool I guess...

Other than that, I like my carbs. Easier to troubleshoot. And usually much cheaper to fix.