Got my Jet Kit......

[Mister2]

well i received my dynojet stage 1 kit for my 00 cbr f4, i pulled the carbs off tonight and i am trying to install the jets, instructions say to pull cover with spring and rubber diaphram out, which i did, but how do i get that needle part out of the plastic housing with the rubber diaphram? the instructions just show it apart, what am i missing?

i have jetted a carb on an old muscle car once, but this is completly different so any help is appreciated,

[DangBruhY]

I wish I could help. I just had a shop do my jet kit on my 00 F4.

[natedogg624]

there should be some sort of pinch clip holding it in to the diaphragm.

can't say for sure if thats they way it is for yours, thats just what it was for my r6.

[natedogg624]

unless you have already done that and gotten the plastic piece out and are talking about separating the needle from clip...

been a while but on mine i think it was just free floating with a spring or something holding it in place. pics?

[xtremef4i]

I wish I could help. I just had a shop do my jet kit on my 00 F4.

When did you get the F4? do you still have your yami too?

[DangBruhY]

I got the 00 F4 back in 02. I no longer have it.

[John]

on my bike there is no clip or nothin holding the needle in there. you take off the top, take out the spring, take out the diaphragm and slide. once you got the slide out, you just turn it over and the needle falls right out.

what kind of carbs are they?

[Casper]

on my bike there is no clip or nothin holding the needle in there. you take off the top, take out the spring, take out the diaphragm and slide. once you got the slide out, you just turn it over and the needle falls right out.

what kind of carbs are they?

I wouldn't turn it over and let the needle fall out, but yeah, it's just sitting in there.

[ReconRat]

2000 CBR 600; pg 5-20 & 5-21 of the shop manual

Remove the three screws and the vacuum chamber cover. As the compression spring is very long, it will jump out of the carburetor when the cover is removed.

Remove the compression spring and diaphragm/vacuum piston from the carburetor body.

screw one of the vacuum chamber cover (4mm) screws into the jet needle holder. Pull the screw and remove the jet needle holder from the vacuum piston. Be careful not to damage the diaphragm. CAUTION: Do not remove the jet needle holder by pushing the jet needle.

Remove the spring, jet needle and washer from the vacuum piston. Check the jet needle for stepped wear. Check the vacuum piston for wear and damage. Check the diaphragm for pin holes, deterioration or damage. Note: Air leaks out of the vacuum chamber if the diaphragm is damaged in any way, even a pin hole.

[natedogg624]

ReconRat = encyclopedia

[John]

I wouldn't turn it over and let the needle fall out, but yeah, it's just sitting in there.

well... into my hand at least

[dustinsn3485]

Recon rat beat me to it...A pair of needle nose or pliers and pull the little plastic cap off. There most likely is an itty bitty spring under there and a washer as well...

[Mister2]

thanks, i tried pulling before, but i was afraid of breaking it, and now thanks to the info, i just pulled a little harder and it poped right out, thanks for help!!!

[blacktalon606]

On my 900RR there was a secton at the top where I could screw a 10mm bolt and pull out the section that snapped in to hold the needle.