CBR Forum - Enthusiast forums for Honda CBR Owners

06 CBR 599 carburator hose

Honda321! — Tue, 19 May 2026 05:31:13 GMT

Hi all, I have an 06 honda 599. I removed the carbs to fix a fuel leak and now I have a small pipe with no hose to connect. I need some help. I looked at the diagrams but I just cant find it. I might be getting too old.

Thank you all in advance for your help

What is this black fairing bolt?

ilikemybike7 — Mon, 18 May 2026 20:47:00 GMT

2011 600rr, there are two black fairing- like 5mm Allen bolts holding plastic covers in place on either side of the guage cluster, can't find it in part schematics. Where can I find a replacement?

Air bubbles in return fuel line.

Crisol — Mon, 18 May 2026 14:54:49 GMT

Hello,
Can anybody help please, I replacrd my faulty fuel pump with a new one and also the fuel filter, but since doing so there are tiny bubbles in the fuel return line, and the pump sounds like its cavitaing. Ive tried removing the t-bag filter and it still runs the same, anybody else had this issue?

FI light confusion

CosmicSurfer — Mon, 18 May 2026 11:48:01 GMT

I recently bought an �02 600 F4I. The only thing I�ve done to it was replaced the FPR (previous owner told me it needed to be replaced) and did an oil change. The FI stays on while driving but flashes at a stop. Did the error code diagnostic thingy and it seems to give me 3 different codes maybe? Gives 2 flashes then 8 flashes then 9 flashes so I�m confused as to if it can actually do that or I�m just reading it wrong?

01 CBR f4I has trouble shifting under load in 2nd and 3rd gear

GoliathFlame — Fri, 15 May 2026 18:51:21 GMT

I've heard this problem could be diagnosed as worn transmission dogs but i cant seam to find any to purchase and i have no clue how to do that repair anyone wanna lend me some knowledge, I'm new to riding and working on motorcycles i have worked on cars for many years so i know how to use a tool just need some instructions on what i need to do to replace it.

Ignition Pulser coils / Pulse generator coils replacement

Agnar — Fri, 15 May 2026 05:58:55 GMT

I have a 1987 CBR600F-H (US model) with erratic sparks coming off the left HT ignition coil. Coils, HT cables and plugs are new. I borrowed an oscilloscope and checked the signal from both the pulse coils. For the pulse coil trigging the right HT coil the wave pattern looked sound. The wave pattern for the other pulse coil was very erratic and compeletely different to the other. I'm now looking to replace both the pulse coils. There are a lot of used pulse coils on the web. If possible I want to have new pulse coils. Anyone that knows where to buy these coils? I'm also looking to replace the Spark unit (ICU). What type of Spark unit do you recommend as a replacement to the original Honda unit that I believe is obsolete? Thank you in advance.

Weird clicking and juttering, Need advice

zoburg88 — Thu, 14 May 2026 04:58:11 GMT

When I shift into gear (both on and off stand) and engage the clutch while in gear I hear clicking sounds coming from near the output shaft. The output shaft seems to "jump" for lack of a better term. Its not a consistent thing with rpm and if I spin the transmission with the clutch plates removed I can't hear it while in gear. I have inspected the clutch basket and plates and all is good there. I have a new chain and sprocket kit. The noise and jumpy-ness is also there with or without the chain on. The clicking usually starts around engaging the clutch 25% and continues even to 100% engaged.

Symptoms
-Clicking noises near output shaft
-Jumpy/jerky output shaft
-Consistent in all gears (except neutral)

When it happens
-any rpm
-in any gear (except neutral) with at least 25% clutch engagement
-seems to happen whenever, not consistent with a certain spot on the output shaft
-with or without load on the output shaft (chain on/off, bike on or off stand)

What I have tried
-Inspecting clutch plates and basket for grooves (Minor grooves, but nothing to write home about, seen worse, bike has 24,000 km on it)
-new sprockets and chain (rebuilding the bike, as its a project bike)
-Tried in every gear while on stand
-Tried in first and second off stand

Any help/ideas is greatly appreciated, I believe I'll be splitting the engine apart to fix it, but would like some suggestions on what to look for before I go too far.

Thanks in advanced for any help. :)

600 F3 cutting off when going into gear

tmat1729 — Wed, 13 May 2026 23:29:25 GMT

Hello, I have a 1996 CBR 600 F3 and every time I put on the biking gear, it cuts off. The kickstand light turns off when I pull it up, and it still cuts off, so I pulled off the clutch switch jumped the wires, and it started up in gear. So what do I need to do? I already replaced the clutch switch, and it still has the same problem, so I don�t know, and I believe the neutral switch is fine.

HELP with 600f4 1999 wont run prop

ChiefRedBul — Tue, 12 May 2026 20:42:08 GMT

Hello, i havent touched my 600f4 in prob 5 years or some +

I am goin to sell it, but i am having problems with the fuel supply.
When i am trying to start the bike, it is rough started, and its spitting out fuel. ( i reccon its from the carb)
It does start, but i have to have the "choke" and give it abit of throttle, but not to much... then it stalls

please take a look at the video

Attached Files

IMG_5841-compressed.MOV (5.39 MB)

CBR600 1990 Project.

Hurricant — Tue, 12 May 2026 18:27:18 GMT

Hello everyone,

I have aquired a 1990 CBR600f (last of the f1 models) and it hasnt ran since 2014 (allegedly) that being said the bike has been untaxed since 1998 so i suspect that is the last time it was on the road.

My goal at the moment is just to get the engine running.

I have purchased a new battery, taken the carbs off and cleaned the jets, floats, float bowls, slides and needles.

It has oil in it and it looks clean, i was planning to just chuck some fuel in it and see if it fires but im waiting on float bowl seals and a new ignition barrel as the key was lost. is there anything im forgetting or should do before attempting its first start?

CBR600f Correct colours

Hurricant — Tue, 12 May 2026 10:40:08 GMT

Hello all,

I'm trying to work out the color scheme for my newly acquired CBR600F.

Currently, it is painted red, white, and a rather dark blue.

It's a 1990 model with stickers showing NH193P and NH193K color codes. It also has "Hurricane" written on the tank; I thought that was only for the American market. Is that correct?

Any help appreciated :)

CBR600 Decals

Hurricant — Mon, 11 May 2026 18:48:29 GMT

Hello all,

I was wondering if anyone knew where I could get some decals for a reasonable price, like the ones in the image below.

Many thanks,

Hurricant

(Wouldnt let me upload the image so this is the image address: https://iconicmotorbikeauctions.com/...e-Featured.jpg)

Honda CBR 600f4 fuel tank petcock diaphragm connector

Brocky78 — Sun, 10 May 2026 16:57:30 GMT

all am Really hoping someone on here can put me out of my misery as another sunny day gone by & no bike to ride took out carbs cpl mnts ago slowly got round to putting everything back together, cpl aqwards jobs as never done before, just when about to fill up coolant attach tank again am stumped where connection to petcock is am talking about main tap petcock side of tank 3 pm position/where the connection

To my understanding the two connections from the fuel pump smaller one have connected to the carb fuel rail Brown T- connection the bigger pipe is to connect to big nipple on tank behind skinny brown plastic pipe. shown in pics near top someone else had my bike trying to sort as not started since trailered home Feb
Go's exactly can't seem to see it not sure if missing everything else seems c onnected like there no where to connect it even am confused have added few pics! AlAlso I connected brown tube as it was completely blocked up by previous owner with rubber & jublie clip thought was ment to be breather pipe but now think supposed to be vacuum? is it 1 of the 4 small vacuum pipes one blocked gold screws shown in pic?

2000 cbr600f4 Dead dash and over priming fuel pump

Sam846 — Sun, 10 May 2026 07:35:15 GMT

Need some suggestions! After cleaning up some wiring for my tail lights I went to start the bike and the dash is completely dead. The bike still starts and runs fine. Indicators have also stopped working. When turning the ignition on the fuel pump primes but doesn�t stop, just stays on continuously until the kill switch is hit or the key is taken out. Any ideas would be apppreciated 👍🏻

99-00 F4 idle adjustment cable info needed

SoCalBiker — Sat, 09 May 2026 18:22:44 GMT

Hello all. Got a question for you.

I have an older model Honda ('85 VF500F interceptor) and one issue it has in particular is that the idle adjustment screw is about 2" long, and tucked in between the two cylinders on the front of this V4. You basically get one quick chance to adjust the idle, and then chances #2- infinity involve burned hands (you have to rest your hand on the head to do this), burned fingers, and loud cursing at the engineers that designed such a stupid location and far-too-short adjuster.

I'm trying to find an idle adjustment cable from a later Honda, hope that it fits the same threaded hole on the carb, and use that instead...and of course I'm looking at the longer the cable, the better. I found one from a 99-00 F4, and the seller measured it at about 10". Another seller supposedly had the same cable from the same bike, and it measured in at 14".

My question that you may know: how long is the OEM idle adjustment cable on this bike? Did they come in two different lengths? I know...it's now NLA from Honda and has been for some time, but I'm still on the search for one if you have one.
-greg