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dr-digest            Monday, March 6 2000            Volume 01 : Number 058



(dr) DR Air screw
Re: (dr) DR Air screw
RE: (dr) DR Air screw
RE: (dr) DR Air screw
RE: (dr) DR Air screw
(dr) RE: Bearings...
RE: (dr) RE: Bearings...
RE: (dr) DR Air screw
RE: (dr) DR Air screw
RE: (dr) DR Air screw
(dr) Pirelli MT44's (Laguna Cross knobbies)
Re: (dr) Pirelli MT44's (Laguna Cross knobbies)

----------------------------------------------------------------------

Date: Mon, 6 Mar 2000 16:47:59 -0000
From: "Copsey, Stephen J (Steve)" <[e-mail]>
Subject: (dr) DR Air screw

Hi all,

my question today is for a 98 DR350SE, CV carb.

Which way do you turn the airscrew to richen the mixture ? surely turning it
in (clockwise) reduces the airflow and makes it richer ?

I ask because I have seen the opposite on some emails and websites. And the
screw on the electric start is impossible to get to unless you tilt the carb
and even then its impossible to do it accurately, so I want to know the
truth !

And another thing - I've seen dyno graphs that show DR350 25 hp, XR400 35 hp
- - is this difference true ?

And what rear wheel hp is the DR-Z supposed to be putting out ?

And why is it always raining here (UK) ????

Steve

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------------------------------

Date: Mon, 06 Mar 2000 11:06:11 -0600
From: Bryan Ply <[e-mail]>
Subject: Re: (dr) DR Air screw

"Copsey, Stephen J (Steve)" wrote:
>
> Hi all,
>
> my question today is for a 98 DR350SE, CV carb.
>
> Which way do you turn the airscrew to richen the mixture ? surely turning it
> in (clockwise) reduces the airflow and makes it richer ?

On the pomper carb clockwise = richer, and counterclockwise = leaner.
Most of the carbs that I have experience with are like this.
>
> I ask because I have seen the opposite on some emails and websites. And the
> screw on the electric start is impossible to get to unless you tilt the carb
> and even then its impossible to do it accurately, so I want to know the
> truth !
>
> And another thing - I've seen dyno graphs that show DR350 25 hp, XR400 35 hp
> - is this difference true ?

The thing that I have figured out with the dyno charts, there are tow
ways to measure hp, at the engine, or at the rear wheel.  If you are
trying to compare the DR and XR hp, make sure they are measured the same
exact way.  Another question that this might pose if the DR is geared at
15/41, and the XR is geared at 15/44 does that have an impact on the hp
charts.
>
> And what rear wheel hp is the DR-Z supposed to be putting out ?

I have heard in the high 30's to low 40's, but I figure that is at the
engine, and does not count for the loss of hp through the drivetrain.
>
> And why is it always raining here (UK) ????

Cant help you there, but it is the best time to do a little preventive
maintainance on the bike.
>
> Steve
>
> -
>  to unsubscribe to dr, send an email to "[e-mail]"
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------------------------------

Date: Mon, 6 Mar 2000 11:39:57 -0600
From: "Gray, Perry" <[e-mail]>
Subject: RE: (dr) DR Air screw

I have seen HP numbers actuall dyno numbers for the DRZ in the low thirties
stock and almost 40 HP with the airbox cover and the baffle removed. This is
on a rear wheel dyno. I just bought a DRZ. I think 40HP is pretty dam close.


The mailing list is a pain in the butt. When you reply it goes to who sent
the message instead of back to the list.

Perry

> ----------
> From:     Bryan Ply[SMTP:[e-mail]]
> Reply To:     Bryan Ply
> Sent:     Monday, March 06, 2000 11:06 AM
> To:     Copsey, Stephen J (Steve)
> Cc:     'd r'
> Subject:     Re: (dr) DR Air screw
>
> "Copsey, Stephen J (Steve)" wrote:
> >
> > Hi all,
> >
> > my question today is for a 98 DR350SE, CV carb.
> >
> > Which way do you turn the airscrew to richen the mixture ? surely
> turning it
> > in (clockwise) reduces the airflow and makes it richer ?
>
> On the pomper carb clockwise = richer, and counterclockwise = leaner.
> Most of the carbs that I have experience with are like this.
> >
> > I ask because I have seen the opposite on some emails and websites. And
> the
> > screw on the electric start is impossible to get to unless you tilt the
> carb
> > and even then its impossible to do it accurately, so I want to know the
> > truth !
> >
> > And another thing - I've seen dyno graphs that show DR350 25 hp, XR400
> 35 hp
> > - is this difference true ?
>
> The thing that I have figured out with the dyno charts, there are tow
> ways to measure hp, at the engine, or at the rear wheel.  If you are
> trying to compare the DR and XR hp, make sure they are measured the same
> exact way.  Another question that this might pose if the DR is geared at
> 15/41, and the XR is geared at 15/44 does that have an impact on the hp
> charts.
> >
> > And what rear wheel hp is the DR-Z supposed to be putting out ?
>
> I have heard in the high 30's to low 40's, but I figure that is at the
> engine, and does not count for the loss of hp through the drivetrain.
> >
> > And why is it always raining here (UK) ????
>
> Cant help you there, but it is the best time to do a little preventive
> maintainance on the bike.
> >
> > Steve
> >
> > -
> >  to unsubscribe to dr, send an email to "[e-mail]"
> >  with "unsubscribe dr" in the body of the message.
> >  For information on digests or retrieving files and old messages send
> >  "help" to the same address.  Do not use quotes in your message.
>
> -
>  to unsubscribe to dr, send an email to "[e-mail]"
>  with "unsubscribe dr" in the body of the message.
>  For information on digests or retrieving files and old messages send
>  "help" to the same address.  Do not use quotes in your message.
>

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------------------------------

Date: Mon, 6 Mar 2000 11:42:39 -0700
From: "Kurt Simpson" <[e-mail]>
Subject: RE: (dr) DR Air screw

> The mailing list is a pain in the butt. When you reply it goes to who sent
> the message instead of back to the list.
>
> Perry

Perry, you need to hit the "reply to all" button on your email program...

Kurt Simpson

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------------------------------

Date: Mon, 6 Mar 2000 12:47:50 -0600
From: "Gray, Perry" <[e-mail]>
Subject: RE: (dr) DR Air screw

Got it thanks.

> ----------
> From:     Kurt Simpson[SMTP:[e-mail]]
> Reply To:     [e-mail]
> Sent:     Monday, March 06, 2000 12:42 PM
> To:     Gray, Perry; 'Bryan Ply'; [e-mail]
> Subject:     RE: (dr) DR Air screw
>
> > The mailing list is a pain in the butt. When you reply it goes to who
> sent
> > the message instead of back to the list.
> >
> > Perry
>
> Perry, you need to hit the "reply to all" button on your email program...
>
> Kurt Simpson
>

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------------------------------

Date: Mon, 6 Mar 2000 10:41:38 -0800
From: "Jesse Kientz   www.kientech.com" <[e-mail]>
Subject: (dr) RE: Bearings...

Hi Kurt, I think you are referring to the swingarm, or the linkage? some
needle/roller bearings do work this way but I am thinking it is not likely
in this case. a tool can be made with some threaded rod, nuts, and selected
washers and a piece of pipe to remove the existing bearings. if you need a
more detailed explanation let me know.

Regards,
Jesse Kientz
http://www.kientech.com/

- -----Original Message-----
From: Kurt Simpson [mailto:[e-mail]]
Sent: Saturday, March 04, 2000 9:11 PM
To: Jesse Kientz www.kientech.com; KLR650; dr list
Subject: Re: Bearings...


When I took the cushion lever apart the needle bearings came apart on one of
the
bushings. I assume this is an obvious sign of bearing failure...only thing
is it
happened on both sides of the bushing and made me wonder the bearing was
desinged to
not be sealed. Is this posible?

The manual lists a special bearing puller and installer tool is there a way
around
the special tool? If I get a special tool is there a universal model that I
can use
for other jobs? Thanks guys...

Kurt



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------------------------------

Date: Mon, 6 Mar 2000 12:20:45 -0700
From: "Kurt Simpson" <[e-mail]>
Subject: RE: (dr) RE: Bearings...

> Hi Kurt, I think you are referring to the swingarm, or the linkage? some
> needle/roller bearings do work this way but I am thinking it is not likely
> in this case. a tool can be made with some threaded rod, nuts,
> and selected
> washers and a piece of pipe to remove the existing bearings. if you need a
> more detailed explanation let me know.
>
> Regards,
> Jesse Kientz
> http://www.kientech.com/

It is what Suz calls "the cushion lever" the three holed piece that the
swingarm and shock and links all bolt too. You were right Jesse, I put them
back in last night after Bryan's suggestion and they actually went in quite
well. The Suzuki dealer told me no way. Odd that they would both fail at the
same time. Yes, if you would give me a few more details I'd love it. I'm
trying to take my learning to the next step. Also, is there such a thing as
overdoing it with the grease when it comes to the cushion lever and swingarm
bearings?

Kurt




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------------------------------

Date: Mon, 6 Mar 2000 10:37:22 -0700
From: "Michael Terrian" <[e-mail]>
Subject: RE: (dr) DR Air screw

Steve:

> my question today is for a 98 DR350SE, CV carb.
>
> Which way do you turn the airscrew to richen the mixture ? surely turning
it
> in (clockwise) reduces the airflow and makes it richer ?

On the SEs, which have CV carbs, the "airscrew" actually controls fuel flow,
so clockwise = leaner, counter-clockwise = richer. And, you're right about
the starter getting in the way. I tried all manner of tools to adjust the
carb without taking it off. Nothing I found worked, except the "T-handle
fuel/air adjuster" sold by Thumper, which makes adjustment a snap.

Mike T


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------------------------------

Date: Mon, 6 Mar 2000 13:42:46 -0600
From: "Gray, Perry" <[e-mail]>
Subject: RE: (dr) DR Air screw

I have the same problem with my electric start DRZ. I am thinking of
soldering or epoxying a T handle on the end of the pilot screw.

Perry

> ----------
> From:     Michael Terrian[SMTP:[e-mail]]
> Reply To:     Michael Terrian
> Sent:     Monday, March 06, 2000 11:37 AM
> To:     [e-mail]
> Subject:     RE: (dr) DR Air screw
>
> Steve:
>
> > my question today is for a 98 DR350SE, CV carb.
> >
> > Which way do you turn the airscrew to richen the mixture ? surely
> turning
> it
> > in (clockwise) reduces the airflow and makes it richer ?
>
> On the SEs, which have CV carbs, the "airscrew" actually controls fuel
> flow,
> so clockwise = leaner, counter-clockwise = richer. And, you're right about
> the starter getting in the way. I tried all manner of tools to adjust the
> carb without taking it off. Nothing I found worked, except the "T-handle
> fuel/air adjuster" sold by Thumper, which makes adjustment a snap.
>
> Mike T
>
>
> -
>  to unsubscribe to dr, send an email to "[e-mail]"
>  with "unsubscribe dr" in the body of the message.
>  For information on digests or retrieving files and old messages send
>  "help" to the same address.  Do not use quotes in your message.
>

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------------------------------

Date: Mon, 6 Mar 2000 12:43:43 -0700
From: "Kurt Simpson" <[e-mail]>
Subject: RE: (dr) DR Air screw

> > my question today is for a 98 DR350SE, CV carb.
> >
> > Which way do you turn the airscrew to richen the mixture ?
> surely turning
> it
> > in (clockwise) reduces the airflow and makes it richer ?
>
> On the SEs, which have CV carbs, the "airscrew" actually controls
> fuel flow,
> so clockwise = leaner, counter-clockwise = richer. And, you're right about
> the starter getting in the way. I tried all manner of tools to adjust the
> carb without taking it off. Nothing I found worked, except the "T-handle
> fuel/air adjuster" sold by Thumper, which makes adjustment a snap.


Fred Hink described it this way on the KLR list...if the screw is toward the
front of the carb on the engine side it is a fuel screw if it is toward the
back and the air cleaner it is an air screw...that would make it as Michael
is pointing out a fuel screw...

Kurt


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------------------------------

Date: Mon, 6 Mar 2000 15:49:45 EST
From: [e-mail]
Subject: (dr) Pirelli MT44's (Laguna Cross knobbies)

Any feedback on these tires? Looking for a good soft terrain tire able to
digest a steady diet of mud, sand and loamy stuff for my '93 DR350. Saw these
listed in the Dennis Kirk catalog and look like they'd be the ticket for
roosting the soft stuff. How well do they hold up (chunking, tread wear
etc)?; do they shed the mud?; will they function okay on the occasional
harder stuff? Thanks for any advice......

Mike
'93 DR350

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------------------------------

Date: Mon, 6 Mar 2000 16:46:13 -0500
From: [e-mail]
Subject: Re: (dr) Pirelli MT44's (Laguna Cross knobbies)

On Mon, 6 Mar 2000 15:49:45 EST [e-mail] writes:
> Any feedback on these tires? Looking for a good soft terrain tire
> able to
> digest a steady diet of mud, sand and loamy stuff for my '93 DR350.
> Saw these
> listed in the Dennis Kirk catalog and look like they'd be the ticket
> for
> roosting the soft stuff. How well do they hold up (chunking, tread
> wear
> etc)?; do they shed the mud?; will they function okay on the
> occasional
> harder stuff? Thanks for any advice......
>
> Mike
> '93 DR350
>

Mike,

The Lagunacross front tire works great and is D.O.T. (Department of
Transportation) approved for Highway use here in the States.  However, I
have found the Garacross to be Pirelli's multi-purpose rear tire.
Although it is not stamped D.O.T. Approved, it is not stamped "Not For
Highway Use" either.

Personally, since I ride a fair amount of asphalt, I choose to use the
Pirelli MT-21 Rallycross front and rear.

I hope this helps,

Al

C. Al Roof

Founder & President - The Blue Ridge Pathfinders Motorcycle Club, Inc.
Office Manager/Special Events Coordinator - Suzuki-Kawasaki of Gastonia
Public Relations Officer - The North Carolina Off-Highway Vehicle
Association, Inc.
Alternate State Representative - The National Off-Highway Vehicle
Conservation Council, Inc.
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------------------------------

End of dr-digest V1 #58
***********************

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