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dr350-digest           Monday, July 19 1999           Volume 01 : Number 107




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Date: Mon, 19 Jul 1999 06:07:02 -0700
From: jessekientz <[e-mail]>
Subject: Re: (dr350) Need help from the DR experts on a an XL250 honda

Hammy, You are correct most duel sporters are setup lean I just worked on a 93XR
250L and had to richen up the pilot as well as the main. It starts and runs much
better now.if you are going to run it in the dirt the rear sprocket should be
changed I had to machine a bracket to move the chain guide forward one bolt hole
I used a 52 tooth and 14 on the front. This guy runs in the dirt all the time and
it works fine these are heavier than DR's all steel tank battery etc. If it ran
out of oil you might check the rocker cam followers they take it tough when this
happens.hope this has been some help.  Jesse

[e-mail] wrote:

> Hello fellow DR owners.
>
> I need some advice, I just picked up an 86' Honda XL 250. The bike needs work
> but in great shape otherwise. This bike is very similar to our DR's. I think
> Suzuki copied many features and designs from this bike, Four stoke thumper,
> Four valve etc...
>
> Anyway, to the problem.. The guy I bought the bike from said his dad bored
> the Honda out while he was repairing the timing chain which jumped out of
> timing. Probably because he never changed the oil. He never got it running
> and it sat for many years until I came along and gave him $300. for it. Well,
> I took it home and replaced the cracked intake manifold and unplugged the
> varished filled Carb and she fire right up.
> The bike runs good at Idle and at low speeds but when I open it up the bike
> sounds boggy like it's not or is getting too much air.
>
> What I know:     (1) The Engine has been bored(Bore size Unknown)
>                         (2) Valves are within clearance
>                                 (3) Air box has not been modified
>                                 (4) all polution junk still hooked up
>                                 (5) spark plug dry and normal looking
>                           (6) stock exhaust
>
> Let me know if you have any ideas....I'm thinking Jetting
>
> HAMMY
>
> SUZ DR350SEW
> Honda XL250R
>
> Visit dr350 archives at http://www.listquest.com/lq/search.html?ln=dr350
> Subscribe to Dual Sport News...write to [e-mail] for info.


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

Date: Mon, 19 Jul 1999 08:23:21 -0700
From: Doug Bragg <[e-mail]>
Subject: (dr350) Moab Rally 99 photos

I have added my Moab Rally photos to my dual sport web site at:

http://members.tripod.com/dougb1969/dualsport/dualsport.html

Doug
DR-350SER


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

Date: Mon, 19 Jul 1999 13:29:41 -0300
From: "Eusebio Costa" <[e-mail]>
Subject: (dr350) Sprockets

I have a 96 DR350SE and after many mods to make it lighter and more suitable
for trail usage, I got to the point where it is necessary to make it a
little stronger, concerning going up hills. I just bought a 14 new front
sprocket (the original was 15/41) keeping the same rear. My idea was to keep
up with plain DR350, since I have put Garacross MT18 tires, front and rear,
the DR350 uses 14/41. Has anyone tried the same, or has any suggestion ?

SUZUKI
GS500SE97
DR350SE96


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

Date: Mon, 19 Jul 1999 13:24:36 -0300
From: "Eusebio Costa" <[e-mail]>
Subject: (dr350) Oil Specification

Can anyone tell me if there is any big difference between car and motorcycle
oils once they have the same specs. , for example, 20W50 SH would suit both
my car and my motorcycle.
Thanks

Suzuki GS500E 97
           DR 350 SE 96


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

Date: Mon, 19 Jul 1999 11:19:45 -0600
From: "Fred Hink" <[e-mail]>
Subject: Re: (dr350) Moab Rally 99 photos

- ----- Original Message -----
From: Doug Bragg <[e-mail]>
To: 'DR350 list' <[e-mail]>; <[e-mail]>
Sent: Monday, July 19, 1999 9:23 AM
Subject: (dr350) Moab Rally 99 photos


> I have added my Moab Rally photos to my dual sport web site at:
>
> http://members.tripod.com/dougb1969/dualsport/dualsport.html
>
> Doug
> DR-350SER


Hey Doug,

Check out... http://www.angelfire.com/ut/moab/page10.html

Fred Hink
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
         Arrowhead Motorsports
http://www.angelfire.com/ut/moab/
435-259-7356  Fax [phone]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^


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

Date: Mon, 19 Jul 1999 10:13:12 -0700
From: <[e-mail]>
Subject: Re: (dr350) Pumper carb mods?

>I have a '98 DR350SE.  I'm putting on the magic airbox, a
BIGGUN exhaust/header with silencer and spark arrestor, and
I'm fitting the stock DR350 pump carb.

Good move.

>I've seen alot of talk about the JXNEEDLE/SPRING but I've
gathered that is for the CV carb.

Correct.

>Will I need to tune the pump carb when I install it?  I see
that Thumper Racing recommends a 130 or 132.5 main jet.

Use the jets that come with the air box (if they are included.)

>Does that make the fuel/air mix richer?

Yes.

>Does the T-handle apply to this carb and what does this adjuster do?

Yes.

>Do I need to change the pilot jet, air jet, or needle?

Not for the T-handle.

>Also, I plan to have the 435cc bore kit installed with a
Megacycle CAM this winter.  What additional changes will I
need to make then?

Drew Smith, Scott's and Thumper do not recommend a cam for the stock bore nor
435 kit, CG & White Bros. do. I have heard two bad stories about cams, but Tom
Warr has had good life out of his. I understand it's the hardening process; some
say OEM is hardest (Rockwell), others say aftermarket is fine.

My pers. experience is the power spread/gains from a high-comp. piston and/or
added displacement (441 in mine) was more than enough.

John




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

Date: Mon, 19 Jul 1999 13:37:42 -0400
From: "Mark Sims" <[e-mail]>
Subject: Re: (dr350) Sprockets

Hi,

I changed the front sprocket on my '98 DR350SE to 14 and saw a dramatic
improvement.  The bike has more bite and I don't see a difference off
the top end.

Does anyone know if the DR350 and DR350SE use the same rear sprocket?
I was going to put my 15 front back on and change the back to a 44 -
but I can only find a 43.  Does anyone know why this is so?

Regards...Mark


Eusebio Costa wrote:
>
> I have a 96 DR350SE and after many mods to make it lighter and more suitable
> for trail usage, I got to the point where it is necessary to make it a
> little stronger, concerning going up hills. I just bought a 14 new front
> sprocket (the original was 15/41) keeping the same rear. My idea was to keep
> up with plain DR350, since I have put Garacross MT18 tires, front and rear,
> the DR350 uses 14/41. Has anyone tried the same, or has any suggestion ?
>
> SUZUKI
> GS500SE97
> DR350SE96
>
> Visit dr350 archives at http://www.listquest.com/lq/search.html?ln=dr350
> Subscribe to Dual Sport News...write to [e-mail] for info.

Visit dr350 archives at http://www.listquest.com/lq/search.html?ln=dr350
Subscribe to Dual Sport News...write to [e-mail] for info.

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

Date: Mon, 19 Jul 1999 11:42:21 -0700
From: jessekientz <[e-mail]>
Subject: Re: (dr350) Need help from the DR experts on a an XL250 honda

Hammy, no it had a single pumper carb I was kind of surprised to see that.
Jesse

[e-mail] wrote:

> In a message dated 7/19/99 9:10:00 AM Eastern Daylight Time, [e-mail]
> writes:
>
> << Hammy, You are correct most duel sporters are setup lean I just worked on
> a 93XR
>  250L and had to richen up the pilot as well as the main. It starts and runs
> much
>  better now.if you are going to run it in the dirt the rear sprocket should be
>  changed I had to machine a bracket to move the chain guide forward one bolt
> hole
>  I used a 52 tooth and 14 on the front. This guy runs in the dirt all the
> time and
>  it works fine these are heavier than DR's all steel tank battery etc. If it
> ran
>  out of oil you might check the rocker cam followers they take it tough when
> this
>  happens.hope this has been some help.  Jesse >>
>
> Yeah, this bike has dual carbs... Did the 250L you worked on have dual carbs?
>
> Thanks, Hammy


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

Date: Mon, 19 Jul 1999 11:46:47 -0700
From: jessekientz <[e-mail]>
Subject: Re: (dr350) Sprockets

Mark, no they are not the same the S model has rubber cushions built into the hub
to reduce shock to the transmission and the bolt pattern is not the same.
Jesse PS try Sprocket specialist.

Mark Sims wrote:

> Hi,
>
> I changed the front sprocket on my '98 DR350SE to 14 and saw a dramatic
> improvement.  The bike has more bite and I don't see a difference off
> the top end.
>
> Does anyone know if the DR350 and DR350SE use the same rear sprocket?
> I was going to put my 15 front back on and change the back to a 44 -
> but I can only find a 43.  Does anyone know why this is so?
>
> Regards...Mark
>
> Eusebio Costa wrote:
> >
> > I have a 96 DR350SE and after many mods to make it lighter and more suitable
> > for trail usage, I got to the point where it is necessary to make it a
> > little stronger, concerning going up hills. I just bought a 14 new front
> > sprocket (the original was 15/41) keeping the same rear. My idea was to keep
> > up with plain DR350, since I have put Garacross MT18 tires, front and rear,
> > the DR350 uses 14/41. Has anyone tried the same, or has any suggestion ?
> >
> > SUZUKI
> > GS500SE97
> > DR350SE96
> >
> > Visit dr350 archives at http://www.listquest.com/lq/search.html?ln=dr350
> > Subscribe to Dual Sport News...write to [e-mail] for info.
>
> Visit dr350 archives at http://www.listquest.com/lq/search.html?ln=dr350
> Subscribe to Dual Sport News...write to [e-mail] for info.


Visit dr350 archives at http://www.listquest.com/lq/search.html?ln=dr350
Subscribe to Dual Sport News...write to [e-mail] for info.

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

Date: Mon, 19 Jul 1999 15:09:00 -0400 (EDT)
From: [e-mail] (James Adler)
Subject: (dr350) sprockets

14/43 is a very good compromise for S models, this is the original
gearing for the early years and works well, also this is why 43 teeth
rear sprockets are more available. I believe 14/47 was the DR dirt only
original gearing, may be different now.
Aftermarket cams work pretty good on the 385 motor, probably overkill on
the 441, mine still works fine, had it since 96.
I believe the cam question is marketing, smaller bore needs cam and
carb, If you sell 100cc big bore with machined cases, costs for a cam
and carb would be prohibitively expensive. Sure people have done all of
the above but not a lot.
                                Jim A.


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

Date: Mon, 19 Jul 1999 17:22:48 EDT
From: [e-mail]
Subject: Re: (dr350) Oil Specification

You've opened Pandora's box with this one; there are probably more opinions
on using automobile oil vs. bike oil than Carter's got pills.......

I'm not a petroleum engineer but given the vastly different environments of a
relatively slow turning, water cooled auto engine and the high rpm, high heat
conditons in your air cooled DR (plus the additional stresses of a gearbox
and a wet clutch), I could see where there might be a difference in these
types of oils. But then I've never heard of an owners manual for any bike
requiring "motorcycle only" rated oils.....

I run full synthetic Castrol bike oil in my DR; the bike revs faster, has
better clutch action (smoother) and the gearbox shifts much better (not as
notchy as when using petro oils). IMHO, I buy the best oil I can find since
it is THE vital fluid to allow these air-cooled 4-stroke engines to have a
long and happy life.

I don't worry about whether the Castrol is engineered for a motorcycle 'cause
it says right on the container "not for use in automobile engines".

Mike
'93 DR350

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

Date: Mon, 19 Jul 1999 15:02:55 -0700
From: Doug Bragg <[e-mail]>
Subject: RE: (dr350) Sprockets

final drive ratios:

15/41 = 2.733 - apparently this is stock for the SE models
15/43 = 2.866
15/44 = 2.866
15/46 = 3.066 - this is what I use from 1996-May 99
15/47 = 3.133 - this is what I am running now, only becuase I counldn't find a steel 46 tooth.

14/41 = 2.928 - apparently this is stock for dirt models

I do mostly dirt road and trail riding with my SE model.  I have changed the sprockets to 47 on the rear and kept the 15 on front.

Doug
94 DR 350 SE, 11k miles


- -----Original Message-----
From:    Mark Sims [SMTP:[e-mail]]
Sent:    Monday, July 19, 1999 10:38 AM
To:    Eusebio Costa
Cc:    dr350 suzuki
Subject:    Re: (dr350) Sprockets

Hi,

I changed the front sprocket on my '98 DR350SE to 14 and saw a dramatic
improvement.  The bike has more bite and I don't see a difference off
the top end.

Does anyone know if the DR350 and DR350SE use the same rear sprocket?
I was going to put my 15 front back on and change the back to a 44 -
but I can only find a 43.  Does anyone know why this is so?

Regards...Mark


Eusebio Costa wrote:
>
> I have a 96 DR350SE and after many mods to make it lighter and more suitable
> for trail usage, I got to the point where it is necessary to make it a
> little stronger, concerning going up hills. I just bought a 14 new front
> sprocket (the original was 15/41) keeping the same rear. My idea was to keep
> up with plain DR350, since I have put Garacross MT18 tires, front and rear,
> the DR350 uses 14/41. Has anyone tried the same, or has any suggestion ?
>
> SUZUKI
> GS500SE97
> DR350SE96
>
> Visit dr350 archives at http://www.listquest.com/lq/search.html?ln=dr350
> Subscribe to Dual Sport News...write to [e-mail] for info.

Visit dr350 archives at http://www.listquest.com/lq/search.html?ln=dr350
Subscribe to Dual Sport News...write to [e-mail] for info.


Visit dr350 archives at http://www.listquest.com/lq/search.html?ln=dr350
Subscribe to Dual Sport News...write to [e-mail] for info.

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

Date: Mon, 19 Jul 1999 17:27:07 -0600
From: "Fred Hink" <[e-mail]>
Subject: Re: (dr350) Sprockets

If you haven't checked out this neat program called GearCalc you can try it
out at: http://www.ironjungle.com/

Just click on Download software and then on GearCalc.

Fred Hink
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
         Arrowhead Motorsports
http://www.angelfire.com/ut/moab/
435-259-7356  Fax [phone]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^


- ----- Original Message -----
From: Doug Bragg <[e-mail]>
To: dr350 suzuki <[e-mail]>
Sent: Monday, July 19, 1999 4:02 PM
Subject: RE: (dr350) Sprockets


> final drive ratios:
>
> 15/41 = 2.733 - apparently this is stock for the SE models
> 15/43 = 2.866
> 15/44 = 2.866
> 15/46 = 3.066 - this is what I use from 1996-May 99
> 15/47 = 3.133 - this is what I am running now, only becuase I counldn't
find a steel 46 tooth.
>
> 14/41 = 2.928 - apparently this is stock for dirt models
>
> I do mostly dirt road and trail riding with my SE model.  I have changed
the sprockets to 47 on the rear and kept the 15 on front.
>
> Doug
> 94 DR 350 SE, 11k miles
>
>
> -----Original Message-----
> From: Mark Sims [SMTP:[e-mail]]
> Sent: Monday, July 19, 1999 10:38 AM
> To: Eusebio Costa
> Cc: dr350 suzuki
> Subject: Re: (dr350) Sprockets
>
> Hi,
>
> I changed the front sprocket on my '98 DR350SE to 14 and saw a dramatic
> improvement.  The bike has more bite and I don't see a difference off
> the top end.
>
> Does anyone know if the DR350 and DR350SE use the same rear sprocket?
> I was going to put my 15 front back on and change the back to a 44 -
> but I can only find a 43.  Does anyone know why this is so?
>
> Regards...Mark
>
>
> Eusebio Costa wrote:
> >
> > I have a 96 DR350SE and after many mods to make it lighter and more
suitable
> > for trail usage, I got to the point where it is necessary to make it a
> > little stronger, concerning going up hills. I just bought a 14 new front
> > sprocket (the original was 15/41) keeping the same rear. My idea was to
keep
> > up with plain DR350, since I have put Garacross MT18 tires, front and
rear,
> > the DR350 uses 14/41. Has anyone tried the same, or has any suggestion ?
> >
> > SUZUKI
> > GS500SE97
> > DR350SE96
> >
> > Visit dr350 archives at http://www.listquest.com/lq/search.html?ln=dr350
> > Subscribe to Dual Sport News...write to [e-mail] for info.
>
> Visit dr350 archives at http://www.listquest.com/lq/search.html?ln=dr350
> Subscribe to Dual Sport News...write to [e-mail] for info.
>
>
> Visit dr350 archives at http://www.listquest.com/lq/search.html?ln=dr350
> Subscribe to Dual Sport News...write to [e-mail] for info.
>


Visit dr350 archives at http://www.listquest.com/lq/search.html?ln=dr350
Subscribe to Dual Sport News...write to [e-mail] for info.

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

End of dr350-digest V1 #107
***************************