I posted this up over on the Archives and thought I'd throw it up here also...
Hi all,
I know this has been brought up before but I don't think it's ever really been resolved. So... I'm throwing it out there again.
Does anybody have a float height measurement for the 400? I can get the fuel level out of the manual but how about float height? IIRC, I think RxRC posted up 13mm a while back. Can anyone confirm or deny? OR, as an alternative, could anyone give me an angle measurement that the carbs are at when mounted on the bike? My motor is currently sitting on the floor otherwise I'd get it myself. I figure this way I might be able to do the fuel level method with an auxiliary fuel tank and the carbs sitting on my bench (none of this put 'em on, take 'em off, repeat B.S.).
TIA!
Brandon
Float height for the 400 - NOT fuel level
Moderators: Site Director, FZR Forum Moderators
- fzrbrandon
- Level 7.5
- Posts: 762
- Joined: Mon Oct 06, 2008 3:21 pm
- Location: North Hollywood, CA
- Contact:
Float height for the 400 - NOT fuel level
92 FZR600 - 3EN2 400 swingarm, Micron, DynoJet, Factory Pro, K&N, R6 shock, RT springs/emulators, R6 MC, Galfer, YZF calipers, Vortex, RK, YZF/R6 VR/R, Vortex, Zero Gravity
90 FZR400 - Sharkskinz, D&D, Sudco, DynoJet, Factory Pro, Ohlins, RT springs/emulators, JEM Machine, Woodcraft, NRC, Galfer, Vortex, RK, YZF/R6 VR/R, Vortex, Lockhart Phillips
89 FZR600 - Vance & Hines, DynoJet, Zero Gravity - sold in '91
http://www.fzrbrandon.com
!!! 400 & 600 Parts For Sale !!! viewtopic.php?f=18&t=9971
-
- 5000+ Posts
- Posts: 5853
- Joined: Fri May 09, 2008 8:46 am
- Location: west london UK
Re: Float height for the 400 - NOT fuel level
Brandon,
Check Rage Digitals old posts he made a tool for doing just that
Check Rage Digitals old posts he made a tool for doing just that
- ragedigital
- 4000+ Posts
- Posts: 4153
- Joined: Wed May 07, 2008 9:30 am
- Location: Northwest St. Louis
Re: Float height for the 400 - NOT fuel level
While I don't have the float height, for the 400, I did make a cheap tool that did the trick on my 600:

Thanks for joining and participating in the most "active" FZR Community on the internet!
- fzrbrandon
- Level 7.5
- Posts: 762
- Joined: Mon Oct 06, 2008 3:21 pm
- Location: North Hollywood, CA
- Contact:
Re: Float height for the 400 - NOT fuel level
Hey guys,
Yeah, I'm pretty well versed in the process and even used Darrin's pics to help me out when I first started doing it. The issue is having the actual measurement. For a 600, it's 24mm (recommended anyways) but for a 400?
Thanks a bunch for replying!
Brandon
Yeah, I'm pretty well versed in the process and even used Darrin's pics to help me out when I first started doing it. The issue is having the actual measurement. For a 600, it's 24mm (recommended anyways) but for a 400?
Thanks a bunch for replying!
Brandon
92 FZR600 - 3EN2 400 swingarm, Micron, DynoJet, Factory Pro, K&N, R6 shock, RT springs/emulators, R6 MC, Galfer, YZF calipers, Vortex, RK, YZF/R6 VR/R, Vortex, Zero Gravity
90 FZR400 - Sharkskinz, D&D, Sudco, DynoJet, Factory Pro, Ohlins, RT springs/emulators, JEM Machine, Woodcraft, NRC, Galfer, Vortex, RK, YZF/R6 VR/R, Vortex, Lockhart Phillips
89 FZR600 - Vance & Hines, DynoJet, Zero Gravity - sold in '91
http://www.fzrbrandon.com
!!! 400 & 600 Parts For Sale !!! viewtopic.php?f=18&t=9971
-
- 5000+ Posts
- Posts: 5853
- Joined: Fri May 09, 2008 8:46 am
- Location: west london UK
Re: Float height for the 400 - NOT fuel level
B,fzrbrandon wrote:Hey guys,
Yeah, I'm pretty well versed in the process and even used Darrin's pics to help me out when I first started doing it. The issue is having the actual measurement. For a 600, it's 24mm (recommended anyways) but for a 400?
Thanks a bunch for replying!
Brandon
OK off the 400 racer brigade board best results are 12mm / 13mm with the 3BF model carbs which appear on the 1WG 400 amongst other <?>
Best I can do .................
- fzrbrandon
- Level 7.5
- Posts: 762
- Joined: Mon Oct 06, 2008 3:21 pm
- Location: North Hollywood, CA
- Contact:
Re: Float height for the 400 - NOT fuel level
Hey George,yamaha_george wrote:B,fzrbrandon wrote:Hey guys,
Yeah, I'm pretty well versed in the process and even used Darrin's pics to help me out when I first started doing it. The issue is having the actual measurement. For a 600, it's 24mm (recommended anyways) but for a 400?
Thanks a bunch for replying!
Brandon
OK off the 400 racer brigade board best results are 12mm / 13mm with the 3BF model carbs which appear on the 1WG 400 amongst other <?>
Best I can do .................
Thanks a bunch for looking into it. Your findings fall in line with a post RxRC (I believe) put up a while back in which he mentions 13mm. I'll probably go ahead and set them at 13mm and check the fuel level from there. I just needed a concrete starting point and I think this will work.
Thanks again!
Brandon
92 FZR600 - 3EN2 400 swingarm, Micron, DynoJet, Factory Pro, K&N, R6 shock, RT springs/emulators, R6 MC, Galfer, YZF calipers, Vortex, RK, YZF/R6 VR/R, Vortex, Zero Gravity
90 FZR400 - Sharkskinz, D&D, Sudco, DynoJet, Factory Pro, Ohlins, RT springs/emulators, JEM Machine, Woodcraft, NRC, Galfer, Vortex, RK, YZF/R6 VR/R, Vortex, Lockhart Phillips
89 FZR600 - Vance & Hines, DynoJet, Zero Gravity - sold in '91
http://www.fzrbrandon.com
!!! 400 & 600 Parts For Sale !!! viewtopic.php?f=18&t=9971
-
- 5000+ Posts
- Posts: 5853
- Joined: Fri May 09, 2008 8:46 am
- Location: west london UK
Re: Float height for the 400 - NOT fuel level
B,fzrbrandon wrote:Hey George,yamaha_george wrote:B,fzrbrandon wrote:Hey guys,
Yeah, I'm pretty well versed in the process and even used Darrin's pics to help me out when I first started doing it. The issue is having the actual measurement. For a 600, it's 24mm (recommended anyways) but for a 400?
Thanks a bunch for replying!
Brandon
OK off the 400 racer brigade board best results are 12mm / 13mm with the 3BF model carbs which appear on the 1WG 400 amongst other <?>
Best I can do .................
Thanks a bunch for looking into it. Your findings fall in line with a post RxRC (I believe) put up a while back in which he mentions 13mm. I'll probably go ahead and set them at 13mm and check the fuel level from there. I just needed a concrete starting point and I think this will work.
Thanks again!
Brandon
You know the "AULD FELLA" will take care of business LoL