fluorochemical grease???


9 replies to this topic
  • czechalien

Posted February 09, 2011 - 06:59 PM

#1

does anyone know where I can buy it or something similar?
I'm sure most of you know, it's for carb slide wheels.
I'm in Atlanta, GA

Thank you

  • matt4x4

Posted February 10, 2011 - 12:09 PM

#2

I'm pretty sure it's any synthetic "oil free" lube with PTFE. Polytetrafluoroethylene (PTFE) is one of the many fluorochemicals available, so are any fluorocarbons etc.
Basically, they want you to use a grease that is not going to wash away from the gasoline passing through the carb.

  • grayracer513

Posted February 10, 2011 - 12:16 PM

#3

Where did you see a recommendation to grease the rollers?

  • czechalien

Posted February 11, 2011 - 11:25 AM

#4

is there anything I need to lube in the carb?

  • Mr. Neutron

Posted February 11, 2011 - 11:51 AM

#5

Where did you see a recommendation to grease the rollers?


In the "Carburetor" section (I think it's chapter 4; I'm not near my manual right now....) where it tells how to reassemble the slide. It's in the "NOTES" section there, and it says something like "Grease the bearings with flourochemical grease." It has arrows radiating from a little black grease icon, pointing towards what I'm guessing is the bearings for the throttle shaft, or maybe the steel/fiber washer combo for the throttle shaft, opposite the TPS side. I dunno.... :smirk: I never thought about it being for the carb wheels..... When I did mine last week or so, I just put a drop of thick oil on the slide wheels' bearings, and called that good..... And I used BelRay waterproof grease for the throttle shaft bearings, as it was handy at the time...... :rant:

Jimmie

  • grayracer513

Posted February 11, 2011 - 04:14 PM

#6

I have a general policy of never using any sort of lube anywhere on the linkage or moving parts of the actual carb. Throttle cables are different, of course. Outside of a true dry moly disulphide spray that leaves NO solvent residue behind, I worry that they have too great a tendency to attract and hold grit. Having never found any trace of any kind of grease in an FCR that I've opened up, I doubt it really needs it, and I don't think that anything you put there will last very long in any case. IMO, if it acts like it needs a lube, it probably needs to be replaced.

Do what you think right.

  • czechalien

Posted February 12, 2011 - 07:12 AM

#7

How often do you guys think carb should be cleaned? I did that for the first time after 106hrs, along with jetting and spark plug.

  • Mr. Neutron

Posted February 12, 2011 - 10:15 AM

#8

Certainly won't hurt to have a look at it..... But if your bike runs alright, it might not need it.... :smirk:

The only reason I went through mine was because I pressure washed the bike, to have it squeaky clean, before doing my winter maintenance. I was afraid I might have blasted some water & junk inside the carb. I'm really impressed with how well these carbs seal up! You keep your air filter clean, and they stay really clean inside.....

Jimmie

  • grayracer513

Posted February 13, 2011 - 09:18 AM

#9

"Stuff" does tend to accumulate in the well where the slide lives and works, and it's not a bad idea to clean that out now and then.

Three things you should not do:
  • Do not remove the TPS unless you want the monumental PITA of readjusting it.
  • Do not submerge and soak the carb in some killer carb cleaning compound because a) the TPS won't like it, and :smirk: there's a gasket between the upper/lower body sections that you cannot buy, and you don't dare damage or disturb it.
  • Do not separate the upper float chamber housing from the main carb body (see 2b above)


  • czechalien

Posted February 13, 2011 - 06:09 PM

#10

seems like I did everything right, I also rejeted and bike runs better than new.





Related Content

Forums
Photo

Engine acting up '98 YZ400F by bjm904


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 4 replies
Forums
Photo

2010-13 Issues? by Calhoun117


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  33 replies
Forums
Photo

2001 YZ426F Won't Start by buck424moto


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 11 replies
Forums
Photo

2006 YZ450f 50th Anniversary by 700rScott


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  46 replies
Forums
Photo

slimming down 08 yz, any more suggestions? by cvbud


Dirt Bike   Make / Model Specific   Yamaha   Yamaha 2-Stroke
  • * * * * *
  • Hot  73 replies
 
x

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

RegisterSign InClose
If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.