View Full Version : How To: 04-06 F4i Undertail install


dwhite645
09-02-2006, 03:11 AM
I told the F4i crowd I'd do a write up w/pics on an undertail install. It's not too difficult, but pretty time consuming. The worst part was cutting the plastic oem mud flap because of it's odd geometric shape and thickness variances.

1) remove seat and unbolt seat cowl (10 bolts - 4 in grab bar, 2 top side at back edge below the seat, 1 on each side/low section of cowl, and two plastic snap screws bottom side).
2) remove brake light sockets
3) Carefully remove cowl and don't stress or twist too much.
4) Remove metal retainer for seat lock, slides upward (located on inside of trunk section) and mounting bracket.
5) remove lock cylinder
6) Unbolt turnsignals (under mudflap)
7) Cut turn signal wires close to the turn signal
8) Unscrew brake light lens (4 screws)
9) Put back oem seat cowl and draw a line (I used the edge of masking tape) at the bottom edge of the oem cowl for where you'll need to cut the mud flap for undertail clearance. Then remove cowl.
10) Cut approx 1/8" above line. I used a pnematic cut off tool, but a dremel or hacksaw would also work. Mine was so highspeed that the cuts melted and became rough. It was not an easy task. Be sure not to cut away the screw holes for the bottom section of the cowl from the mud flap plastic.
11) Check fit of undertail with cowl section on bike. Cut more mudflap if needed.
12) With undertail and cowl temporarily set on bike, mark holes in undertail with the holes in the cowl so they align properly.
13) Install license bracket in undertail.
14) Install lock housing, cylinder and retaining clip on inside of undertail.
15) Install lights into undertail.
16) Drill holes for the undertail to be bolted to the cowl.
17) Install on bike and bolt together.
18) Wire according to instructions.
19) Hook up seat lock cable to lock cylinder and check that it works before locking the seat on!
20) Done!

local://upfiles/4409/8613832AEBC84291B33063C69CEE075A.jpg

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local://upfiles/4409/4D707B03FBD14F6CB6AF47411A177368.jpg

local://upfiles/4409/D5EA06720DB44D5BA195B9A4646EC508.jpg

dwhite645
09-02-2006, 03:12 AM
And more pics...

local://upfiles/4409/84EEC4ED85D54EB895DDDE8145E66C27.jpg

local://upfiles/4409/C8B31A34080D4F45BC17F0A41137DA28.jpg

local://upfiles/4409/7C709DAF95584C84979C5DD821A4CDA6.jpg

local://upfiles/4409/9B4C0DDB744F4BE1B21ECAD0146F625E.jpg

snowboarding82
09-02-2006, 03:26 AM
Wow looks great man! =) I like that undertail I think that's the one I will end up going with too. Thanks a million for the write up! Nice job on that too. =)

Mike

Leveltwo
09-02-2006, 03:51 AM
looks really nice darrell. i was gonna order that same one now that i have someone to help me with the install, haha. but i am probably gonna hold off till the winter and do the 01 seat conversion cause i gotta replace the rear cowl anyway, why not get rid of the banana and go the twoseater way.

U8BOOST
03-09-2007, 10:12 PM
hey thanx for the add man! it worked out for me great....

snowboarding82
03-24-2007, 05:04 AM
YES! I knew I could find this write up again! =) I'm going to install mine tomorrow, well hopefully. I'm thinking if I start by 9am i should be done by..... 5pm? Does anyone know if I will have to do anything to the wiring if I have the hotbodies flushmounts for the front turn signals? I read somewhere that you have to put in some extra radio shack items but I don't remember where I read it. I guess it's just better to know before I start this project rather than half way through it when I'm like wtf mate?!

Mike

06CBRF4i
04-01-2007, 12:13 AM
hey, what undertail is that and where did u get it?!?! i looked all over for one b4 buying the comp werkes fender eliminator. guess i didnt search hard enough.

Mad
04-01-2007, 02:20 AM
It's a Rumble undertail. I think 1.tail.com (http://1tail.com) has them but you can also get them from Rumble Imports (http://www.rumble-store.com/) directly. You can probably find them cheaper somewhere else...

Snowboard -- I have flush mount up front and didn't add anything extra.

LaughingMan600F4i
09-25-2008, 07:23 PM
Wow Looks Kinda Hard Lol I Got This Undertail Yetserday Off Ebay So I Should Get It Some Time Next Week :D

http://cgi.ebay.ca/Undertail-CBR600-CBR-600-F4-99-00-F4i-04-06-Unpainted_W0QQitemZ280268011249QQihZ018QQcategoryZ 35583QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

(Dono How Mad Did The Link Thingy Lol)

LaughingMan600F4i
11-23-2008, 04:19 PM
I Cant Seem To Get My Lock Cylinder Out...

Any Help?.....

mbison83
02-21-2009, 03:45 PM
pics dont work..

f4itypeofguy
02-22-2009, 07:57 PM
...cant see pics either...

cwmc29
02-22-2009, 09:43 PM
Pics not working for me either. would like to see

f4itypeofguy
03-02-2009, 12:03 PM
any one know how to fix the pictures? several post regarding the pictures. Thanks

mbison83
03-14-2009, 02:28 AM
bumpity

jschned
03-20-2009, 11:50 AM
while installing the fender eliminator kit, i noticed that due to the new location of the seat release, the cable didnt fit real well. i tested it a few times and it seemed to work alright. once i put my seat back on it decided it didnt want to work any more. basically i'm unable to get my seat back off. does ANYone have ANY ideas? PLEASE HELP!!!

Kikepiz
03-20-2009, 06:13 PM
Can't see the pics...

Jmclmorrow
07-13-2009, 07:13 PM
I would love to see these pictures as well

Cbr4Lyfe
07-14-2009, 11:29 AM
Pics pics pics!

DesF4
07-21-2009, 09:35 PM
Im doing this job tonight pics would be great

DesF4
07-28-2009, 04:28 AM
Ok I did it, its real easy

DesF4
07-28-2009, 04:42 AM
oh yeah and here is the finished result

slobo7x
08-03-2009, 10:46 AM
Can you post the link where you got this kit?
I have an 06f4i and would like to do this as well.

Thanks!

DesF4
08-04-2009, 02:22 AM
Can you post the link where you got this kit?
I have an 06f4i and would like to do this as well.

Thanks!

I got it from these guys

http://fatbikez.com/hotbodies-racing-1999-2000-honda-cbr-f4-undertail-unpainted.html

slobo7x
08-04-2009, 12:21 PM
the link says 1999-200, will it work on 06?

hiker81
03-19-2010, 08:35 PM
yes sloblo7x it will fit on a "06" i got the same one on my 06!