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Next: The Pup will always be the Pup...
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External
Since: Jan 30, 2008
Posts: 50
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(Msg. 16) Posted: Fri Feb 08, 2008 8:24 am
Post subject: Re: Special tools [Login to view extended thread Info.]
Archived from groups: rec>motorcycles>dirt (more info?)
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"Craig" <googlegroupmail RemoveThis @yahoo.com> wrote in message
news:60f4188d-0df6-469e-8706-419d738edd51@i7g2000prf.googlegroups.com...
> The clutch basket on my xr250 is held on by a nut that requires a
> special tool to remove. Here's a pic:
>
> http://i246.photobucket.com/albums/gg106/forcedtojoin/xr250/clutchnut.jpg
>
> Why do manufacturers do this kind of thing? I can't see how this nut
> would cost less than a conventional one.
>
> Over the years I've heard a few theories:
>
> To sell special tools.
> To generate business for dealers.
> To deter hack mechanics.
> Just to F with us.
>
> Anyone know the real reason?
The real reason is that the factory tool has a much better positive
engagement, making it much harder for someone to round the corners.
Do you know why Phillips head screws were invented? The tapered slot
prevented the workers from putting too much torque on the screw & snapping
it off. The slots were designed to push the tool out (also rounding the
slots) before the torque got too high. Pozi-screws look like a phillips,
except the slot walls don't have a taper to them.
-Jeff- |
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External
Since: Apr 17, 2007
Posts: 136
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(Msg. 17) Posted: Fri Feb 08, 2008 8:30 am
Post subject: Re: Special tools [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On Feb 8, 1:22 pm, JayC <j... DeleteThis @sysmatrix.net> wrote:
> One of the hot mods for new CRFs is to replace the float screws with
> teeny allen-head bolts - I'm doing it.
I love allen bolts. All screw I round up, I replace for allen. My carb
is all-allen.
-- Tiago |
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External
Since: Oct 08, 2004
Posts: 1551
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(Msg. 18) Posted: Fri Feb 08, 2008 8:45 am
Post subject: Re: Special tools [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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External
Since: May 23, 2005
Posts: 140
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(Msg. 19) Posted: Fri Feb 08, 2008 9:06 am
Post subject: Re: Special tools [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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External
Since: Aug 07, 2007
Posts: 18
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(Msg. 20) Posted: Fri Feb 08, 2008 9:13 am
Post subject: Re: Special tools [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Craig wrote:
> The clutch basket on my xr250 is held on by a nut that requires a
> special tool to remove. Here's a pic:
>
> http://i246.photobucket.com/albums/gg106/forcedtojoin/xr250/clutchnut.jpg
>
> Why do manufacturers do this kind of thing? I can't see how this nut
> would cost less than a conventional one.
>
> Over the years I've heard a few theories:
>
> To sell special tools.
> To generate business for dealers.
> To deter hack mechanics.
> Just to F with us.
>
> Anyone know the real reason?
>
> Craig
The MFG had a bunch left over from (insert other project here)
and wanted to use them up? >> Stay informed about: Special tools |
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External
Since: Jan 30, 2008
Posts: 50
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(Msg. 21) Posted: Fri Feb 08, 2008 9:57 am
Post subject: Re: Special tools [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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"JayC" <jwc RemoveThis @sysmatrix.net> wrote in message
news:ed50f8a8-bfb5-466e-92fe-06b1f51acced@s37g2000prg.googlegroups.com...
> One of the hot mods for new CRFs is to replace the float screws with
> teeny allen-head bolts - I'm doing it.
I've been doing this on every bike I've had for the last 25 years. On many
bikes, it enables bowl removal without taking the carb out.
Of course, the CRF will still require removal of the sub-frame, air-box,
rear shock, and splitting the cases to perform jetting changes. :-/
-Jeff- >> Stay informed about: Special tools |
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External
Since: Apr 17, 2007
Posts: 190
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(Msg. 22) Posted: Fri Feb 08, 2008 11:14 am
Post subject: Re: Special tools [Login to view extended thread Info.]
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> Of course, the CRF will still require removal of the sub-frame, air-box,
> rear shock, and splitting the cases to perform jetting changes. :-/
Of course, but you forgot about draining the radiators too.
JayC >> Stay informed about: Special tools |
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External
Since: Aug 25, 2006
Posts: 101
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(Msg. 23) Posted: Fri Feb 08, 2008 12:45 pm
Post subject: Re: Special tools [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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> For the record, a 380sx isn't the right tight woods
> bike for me.
That;'s some big nutz in the tight woods. Think KTM200EXC.
Braaaaaaaaaaaaaaaaaaaaaaap! >> Stay informed about: Special tools |
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External
Since: May 23, 2005
Posts: 140
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(Msg. 24) Posted: Fri Feb 08, 2008 1:11 pm
Post subject: Re: Special tools [Login to view extended thread Info.]
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"HellSickle" <
> I don't know of anyone for whome the 380 would be a "right tight woods
> bike". Explosive power delivery is not a good combination in the woods.
> The 380 EXC is a sweet bike tho...
>
> -Jeff-
my friends wife? >> Stay informed about: Special tools |
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External
Since: Jan 30, 2008
Posts: 50
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(Msg. 25) Posted: Fri Feb 08, 2008 1:11 pm
Post subject: Re: Special tools [Login to view extended thread Info.]
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"john" <not.TakeThisOut@this.add> wrote in message
news:13qp6r1cuaj9612@corp.supernews.com...
> "HellSickle" <
>> I don't know of anyone for whome the 380 would be a "right tight woods
>> bike". Explosive power delivery is not a good combination in the woods.
>> The 380 EXC is a sweet bike tho...
>>
>> -Jeff-
>
> my friends wife?
Hmmmm.... Valentines day is right around the corner.... >> Stay informed about: Special tools |
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External
Since: Apr 16, 2007
Posts: 118
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(Msg. 26) Posted: Fri Feb 08, 2008 2:56 pm
Post subject: Re: Special tools [Login to view extended thread Info.]
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On Feb 8, 3:45 pm, edi....RemoveThis@mxnewsfeed.com wrote:
> > For the record, a 380sx isn't the right tight woods
> > bike for me.
>
> That;'s some big nutz in the tight woods. Think KTM200EXC.
> Braaaaaaaaaaaaaaaaaaaaaaap!
I go somewhere in between with a 300... >> Stay informed about: Special tools |
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External
Since: Apr 16, 2007
Posts: 118
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(Msg. 27) Posted: Fri Feb 08, 2008 3:00 pm
Post subject: Re: Special tools [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On Feb 8, 12:46 pm, Volker Bartheld <dr_vers....TakeThisOut@freenet.de> wrote:
> Hi!
>
> > On Feb 8, 1:22 pm, JayC <j....TakeThisOut@sysmatrix.net> wrote:
> >> One of the hot mods for new CRFs is to replace the float screws with
> >> teeny allen-head bolts - I'm doing it.
> On Fri, 8 Feb 2008 08:30:34 -0800 (PST), Tiago Rocha wrote:
> > I love allen bolts. All screw I round up, I replace for allen. My carb
> > is all-allen.
>
> "Torx" [1] is the hot ticket here. That way, you'll be able to strip even
> the tiniest threads with the least diameter or pop off the heads entirely
> with great ease. Another advantage: You're not tempted to drain the
> carb/open the bowl during a ride because you're not carrying the right
> tool(s). 
>
> Volker
>
> P.S.: I rounded the corners of my '94 CR250's bowl screws (Phillips AFAIR)
> once. So far no problems with Honda XR600R, KTM 620 SC and also the Yam
> 426's $$$-Keihin. I'm using quality screwdrivers [2] and probably no
> excessive torque.
>
> [1]http://en.wikipedia.org/wiki/Torx
> [2]http://de.hoffmann-gmbh.de/K38/images/pdf/668260.pdf
>
> --
> mailto: V B A R T H E L D at G M X dot D E
I've probably removed the bowl screws on my 300 about 1000 times. I'm
still using the same screws. They are defininetly not pristine
anymore, but still functional.  You just don't have to make them
very tight. >> Stay informed about: Special tools |
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External
Since: Aug 03, 2007
Posts: 144
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(Msg. 28) Posted: Fri Feb 08, 2008 3:44 pm
Post subject: Re: Special tools [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On Fri, 8 Feb 2008 07:45:22 -0800 (PST), Craig
<googlegroupmail.TakeThisOut@yahoo.com> wrote:
>On Feb 8, 10:21 am, "HellSickle" <jldnospamee....TakeThisOut@comcast.spammer.net>
>wrote:
>
>> I don't know of anyone for whome the 380 would be a "right tight woods
>> bike". Explosive power delivery is not a good combination in the woods.
>> The 380 EXC is a sweet bike tho...
>
>My buddy likes it and does very well on it. He's an A enduro rider and
>one of the most aggressive riders I've ever seen. The ruts on his
>couple-mile practice loop are huge - every corner is brake slide in
>and WFO out. I don't know how he manages to ride all day that way, but
>he does, and he does it well.
>
>Craig
Sounds familure!
Mike Baxter >> Stay informed about: Special tools |
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External
Since: Aug 03, 2007
Posts: 144
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(Msg. 29) Posted: Fri Feb 08, 2008 3:46 pm
Post subject: Re: Special tools [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On Fri, 8 Feb 2008 08:22:19 -0800 (PST), JayC <jwc.DeleteThis@sysmatrix.net>
wrote:
>> Yep. Seems like carb manufacturers take it a step further and make the
>> float bowl screws out of butter. It's remarkable how many rounded
>> float bowls screws I've run into over the years. Is it that hard to
>> use the right sized screwdriver?
>
>No kidding. I destroyed 3 of the 8 screws I took out of the bottom of
>my (brand new) FCR carb. None of them involved the driver camming out
>either - they all simply failed and turned into rivets. Thank the
>lawd for channel-locks.
>
>One of the hot mods for new CRFs is to replace the float screws with
>teeny allen-head bolts - I'm doing it.
>
>JayC
Real hot mod there buddy. I have done this on every bike I own. Even
my 1987 CR125.
Mike Baxter >> Stay informed about: Special tools |
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External
Since: Jun 26, 2003
Posts: 122
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(Msg. 30) Posted: Fri Feb 08, 2008 4:12 pm
Post subject: Re: Special tools [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Hi!
> On Feb 8, 1:22 pm, JayC <j....RemoveThis@sysmatrix.net> wrote:
>> One of the hot mods for new CRFs is to replace the float screws with
>> teeny allen-head bolts - I'm doing it.
On Fri, 8 Feb 2008 08:30:34 -0800 (PST), Tiago Rocha wrote:
> I love allen bolts. All screw I round up, I replace for allen. My carb
> is all-allen.
"Torx" [1] is the hot ticket here. That way, you'll be able to strip even
the tiniest threads with the least diameter or pop off the heads entirely
with great ease. Another advantage: You're not tempted to drain the
carb/open the bowl during a ride because you're not carrying the right
tool(s).
Volker
P.S.: I rounded the corners of my '94 CR250's bowl screws (Phillips AFAIR)
once. So far no problems with Honda XR600R, KTM 620 SC and also the Yam
426's $$$-Keihin. I'm using quality screwdrivers [2] and probably no
excessive torque.
[1] http://en.wikipedia.org/wiki/Torx
[2] http://de.hoffmann-gmbh.de/K38/images/pdf/668260.pdf
--
mailto: V B A R T H E L D at G M X dot D E >> Stay informed about: Special tools |
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