Carb dirt?

On Mon, 10 Nov 2003 12:52:33 GMT, "whenindoubt"
<nospamprjames.DeleteThis@netzero.net> wrote:

 >Mike,
 >I got good news and bad news. The bad news is you're screwed! Once any dirt
 >gets in the intake of an XR400, the max remaining life expectancy of the
 >motor is about 20 minutes. It is a common problem with all XR400's in all
 >model years. The good news is, I'll buy it from you, as is, for $100.
 >whenindoubt

Something tells me that I should discount your offer to assist in this one
particular case, but thanks:)

Mike


--
Mike W.
96 XR400
74 CZ250 Enduro
99 KZ1000P
BRC, AMA, NETRA, NOHVCC, NRA

"Why do they call it Cobra Grass?"

Suburban trail-riding best practices:
<a style='text-decoration: underline;' href="http://www.crocker.com/~mwilliams/Suburban.htm" target="_blank">http://www.crocker.com/~mwilliams/Suburban.htm</a><!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: Carb dirt? 

Is that a Van Gogh coffee mug? Cool-

GaryT
 >> Stay informed about: Carb dirt? 

On Mon, 10 Nov 2003 13:25:22 GMT, "GaryT" <gtphoto RemoveThis @comcast.net> wrote:

 >Is that a Van Gogh coffee mug? Cool-
 >
 >GaryT
 >

You just freaked the living crap out of me. I open the draps... sit back
with my first cup of coffee and read this while sitting here in my
underwear, trying to come to life.... Damn Gary... I thought I had another
stalker for a moment. Yes... Starry Night. I have one that says "I like
machines" too if that makes me seem more macho:)

Mike

ps - OTOH, that Vangelis song "Hymne" from the Gallo commercial ("all our
best") from like 86 is playing, so I guess the most I can hope for is
butch.


--
Mike W.
96 XR400
74 CZ250 Enduro
99 KZ1000P
BRC, AMA, NETRA, NOHVCC, NRA

"Why do they call it Cobra Grass?"

Suburban trail-riding best practices:
<a style='text-decoration: underline;' href="http://www.crocker.com/~mwilliams/Suburban.htm" target="_blank">http://www.crocker.com/~mwilliams/Suburban.htm</a><!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: Carb dirt? 

"Mike W." <Outofthe.RemoveThis@emailbiz.com> schreef in bericht
news:ivcuqv0fq4rvmknhsh4truj99ej8dqgsg9@4ax.com...
 >
 > I decided to try and force myself to like my XR again, so I took the carb
 > off tonight to play around inside. That's always good couples therapy for
 > us. I found what may be some dirt coming in. I posted some pix over on
 > abpm of that and the intake throat from the air box... I'm curious how
 > screwed any of you who have seen this effect before think I am. It was
 > running strong when I got back from WI with it. Thanks for any help on
 > this.

This definitely needs taking care off to minimyze the risk of ruining your
engine.
Pics a are veeeery sharp and detailed!!!!!
How about glueing the carb to the intake rubber with YamaBond (tm)?

Grtz, P1

 >
 > Mike
 >
 >
 > --
 > Mike W.
 > 96 XR400
 > 74 CZ250 Enduro
 > 99 KZ1000P
 > BRC, AMA, NETRA, NOHVCC, NRA
 >
 > "Why do they call it Cobra Grass?"
 >
 > Suburban trail-riding best practices:
<font color=purple> > <a style='text-decoration: underline;' href="http://www.crocker.com/~mwilliams/Suburban.htm</font" target="_blank">http://www.crocker.com/~mwilliams/Suburban.htm</font</a>><!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: Carb dirt? 

On Mon, 10 Nov 2003 18:51:57 +0100, "PymerOne"
<pymerone.DeleteThis@ppllaanneett.nl> wrote:

 >How about glueing the carb to the intake rubber with YamaBond (tm)?

not knowing about XR400s, and taking the risk of writing bs, I'd like
to share an experience with carbs.

The XL250R (and other XL based brazilian bikes) airbox connects to the
carburetor using two rubber boots, one that goes out of the airbox,
looks like it's glued on the airbox and other which connects to the
carburetor, secured in place with a clamp. These two parts meet each
other halfway, and on the bike (my buddy's XL250R) I cleaned, I found
that the connection between the two parts was letting dirt (and water
and god knows what else) in. Solution was glueing the two parts
together using araldite (an epoxy glue), problem solved.

The carburetor of that XL had marks very similar of those on Mike's
carburetor... Hard to take of, but carb cleaner can take them off.

Checked the pics again, seems that XR400s does not have a two part
intake rubber. Perhaps dirt is getting through the air filter???

--
Tiago Rocha
Recife - Brasil
<a style='text-decoration: underline;' href="http://www.diariodastrilhas.cjb.net" target="_blank">www.diariodastrilhas.cjb.net</a><!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: Carb dirt? 

"Tiago Rocha" <tiagocrspamtalho.RemoveThis@terra.com.br> schreef in bericht
news:cdkvqvodeqiq8pdhqivk5dbvf8sgis8dpd@4ax.com...
 > On Mon, 10 Nov 2003 18:51:57 +0100, "PymerOne"
 > <pymerone.RemoveThis@ppllaanneett.nl> wrote:
 >
  > >How about glueing the carb to the intake rubber with YamaBond (tm)?
 >
 > not knowing about XR400s, and taking the risk of writing bs, I'd like
 > to share an experience with carbs.
 >
 > The XL250R (and other XL based brazilian bikes) airbox connects to the
 > carburetor using two rubber boots, one that goes out of the airbox,
 > looks like it's glued on the airbox and other which connects to the
 > carburetor, secured in place with a clamp. These two parts meet each
 > other halfway, and on the bike (my buddy's XL250R) I cleaned, I found
 > that the connection between the two parts was letting dirt (and water
 > and god knows what else) in. Solution was glueing the two parts
 > together using araldite (an epoxy glue), problem solved.
 >
 > The carburetor of that XL had marks very similar of those on Mike's
 > carburetor... Hard to take of, but carb cleaner can take them off.
 >
 > Checked the pics again, seems that XR400s does not have a two part
 > intake rubber. Perhaps dirt is getting through the air filter???

The place the carb is dirty matches the place where there is dirt on the
rubber.
Faulty clamp? Rubber designed for a 2 mm larger carbie? Leaking filter?
Never the less, Araldite/YamaBond/liquid gasket might help sealing the joint
between carbie and rubber, the filter needs checking every ride anyhow.
This araldite sounds like a pretty permanant solution, no?
Resistant to anything but direct nuclear hit and rats.

Grtz, P1

 >
 > --
 > Tiago Rocha
 > Recife - Brasil
<font color=purple> > <a style='text-decoration: underline;' href="http://www.diariodastrilhas.cjb.net</font" target="_blank">www.diariodastrilhas.cjb.net</font</a>><!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: Carb dirt? 

On Mon, 10 Nov 2003 21:49:11 +0100, "PymerOne"
<pymerone.RemoveThis@ppllaanneett.nl> wrote:


 >This araldite sounds like a pretty permanant solution, no?
 >Resistant to anything but direct nuclear hit and rats.

On the old XL, the intake rubber is made by two parts, one that clamps
on the carb and other that is glued on the airbox. In the middleway,
the met each other, no clamps, no glue, nothing, they just "fit" each
other. I don't know how it's supposed to work when new, but when old,
it gets leaky. Araldite glues it and it turns into a "normal" intake
rubber, just like the one on my XR. The araldite does not touch
neither the carb or the airbox...

that's not the case of the XR400, the pics Mike posted does show that
the airbox rubber is one entire piece...

in his case, silicone would seal and still be easy (???) to remove
carburetor...

 >Grtz, P1
 >


--
Tiago Rocha
Recife - Brasil
<a style='text-decoration: underline;' href="http://www.diariodastrilhas.cjb.net" target="_blank">www.diariodastrilhas.cjb.net</a><!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: Carb dirt? 

Thanks guys... I'm taking it that this probably isn't a "guaranteed
screwed" situation (because given my level of enthusiasm for riding in my
quad-destroyed local setting, I'd just bulldoze the XR into the
let-my-estate-worry-about-it pile with the CZs). So adhesives and silicone
sound like they'll work. What about just regular wp grease?

Mike

On Mon, 10 Nov 2003 17:56:13 -0300, Tiago Rocha
<tiagocrspamtalho.TakeThisOut@terra.com.br> wrote:

 >On Mon, 10 Nov 2003 21:49:11 +0100, "PymerOne"
 ><pymerone.TakeThisOut@ppllaanneett.nl> wrote:
 >
 >
  >>This araldite sounds like a pretty permanant solution, no?
  >>Resistant to anything but direct nuclear hit and rats.
 >
 >On the old XL, the intake rubber is made by two parts, one that clamps
 >on the carb and other that is glued on the airbox. In the middleway,
 >the met each other, no clamps, no glue, nothing, they just "fit" each
 >other. I don't know how it's supposed to work when new, but when old,
 >it gets leaky. Araldite glues it and it turns into a "normal" intake
 >rubber, just like the one on my XR. The araldite does not touch
 >neither the carb or the airbox...
 >
 >that's not the case of the XR400, the pics Mike posted does show that
 >the airbox rubber is one entire piece...
 >
 >in his case, silicone would seal and still be easy (???) to remove
 >carburetor...
 >
  >>Grtz, P1
  >>

--
Mike W.
96 XR400
74 CZ250 Enduro
99 KZ1000P
BRC, AMA, NETRA, NOHVCC, NRA

"Why do they call it Cobra Grass?"

Suburban trail-riding best practices:
<a style='text-decoration: underline;' href="http://www.crocker.com/~mwilliams/Suburban.htm" target="_blank">http://www.crocker.com/~mwilliams/Suburban.htm</a><!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: Carb dirt?