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Old 03-21-2012, 04:17 PM   #61741
TRAVELGUY
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Joined: May 2008
Location: Georgetown, In / Costa Rica
Oddometer: 527
Not sure why mine did that. There was only one day that I had that bike in water crossing that caused me a problem but I did trace the problem to the venting. I'm just going to the T-Mod on this next DR build to make sure the problem is cured.

TravelGuy

Quote:
Originally Posted by kobukan View Post
This is interesting. What kind of problems did you have? I rode through some (many) long, deep water crossings last spring with another rider on a DR650 (I was on my DR350) and he had no issues. Some of the water crossings were up to the bottom of our seats and some were 50 yards long, maybe longer. We talked about carb venting and he said his setup was totally stock and he never had any issues in deep water. I haven't had either of my DR650's in water that deep, yet.
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Old 03-21-2012, 04:24 PM   #61742
Mongle
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Joined: Dec 2009
Location: North Carolina Y'all
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Quote:
Originally Posted by newride View Post
So I have put about 11,000 miles on my DR with a stock seat (with an Alaska sheep skin cover). I threw my back out today and have a feeling that the stock seat added to my problem. My question is not if a seat upgrade for the DR is a good thing. I know that it is.
My question is a comfortable seat for the DR allow one with back pain to ride it with little or no pain?
Thanks,
J
I guess a lot depends on the type of backpain. My back is a wreck: Broke my tailbone years ago which causes me pain if I sit on it too much (which makes me slump a lot), and my lower back hurts about every other day (especially when I slump a lot). I couldn't ride the stock seat more then 60 miles and I would be DONE! I have the Corbin and love it. As long as I keep good posture my back doesn't hurt and I have never had a problem with my tailbone.
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Old 03-21-2012, 04:29 PM   #61743
kobukan
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Joined: Dec 2009
Location: Saco ME
Oddometer: 1,677
Quote:
Originally Posted by TRAVELGUY View Post
Not sure why mine did that. There was only one day that I had that bike in water crossing that caused me a problem but I did trace the problem to the venting. I'm just going to the T-Mod on this next DR build to make sure the problem is cured.

TravelGuy
Thanks. I may just do mine too. Cheap insurance, can't hurt.
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Old 03-21-2012, 04:41 PM   #61744
TaZ9
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Joined: May 2007
Location: Northern Colorado
Oddometer: 257
Thanks for the information...

Quote:
Originally Posted by shu View Post
Hey TaZ9-
Nothing special for maintenance on my DR. Mostly I just keep up with the regular servicing called for by Suzuki.

Oil changes: sometimes synthetic, usually motorcycle oil; more than once, just regular Castrol 10-40 car oil (clean oil is better than dirty oil and specialty oils can be impossible to come by many places in this world.)

-- lubed the shock linkage bearings once at about 15,000 miles.

-- taillight bracket failure at 18,000 miles.



The first one broke in Italy, Instead of taking the bike half apart to get at it, I carved the plastic up, put the screws back in and duct-taped the whole thing back together. Unfortunately, the whole bracket snapped a little while later. ADVGrifter gave me a replacement which I put on at about 30,000 miles. That one failed about 10,000 miles later. Failed in the same place both times. I stopped being stupid and finally put on the DR350 light.

--Stator failure at about 28,000 miles- Only real failure I've had and I've heard of others having this same problem. Left me stranded on a 4 wheel drive trail in Colorado. My opinion: this is a more likely failure mode than the dreaded 3rd gear explosion.

--cleaned and rebuilt the carburetor once at 35,000 miles (stock carb)

--replaced all wheel bearings and cush hub bearing at about 35,000 miles.

What I DON'T do is beat the crap out of my bike. I DO ride it like a dual sport, on good and bad roads/trails. I ride it hard sometimes, but I don't wheelie and I don't try to make it go 90 mph for hours on end.

Great bike. I expect it to keep going for a while yet, then when it breaks, I'll buy a low mileage '06 or later and transfer all my goodies to it.

Eastern Turkey


Ride report: http://www.advrider.com/forums/showthread.php?t=568261

..............shu
From your ride reports and posts, I could tell that we think very much alike about preventive maintenance and riding styles. I have owned many different motorcycle, including 2 KLR's, 3 DRZ400's, a Honda XR250L, Super Sherpa 250, and many others over the years. Like you, I generally make only minor changes to my bikes, and focus more on comfort and dependability. Both my DR's had the tail light breakage, but other than that, they have been stone reliable.

I cringe when I hear of someone wanting to wheelie, or jump their big DR, and then hear complaints about 3rd gear, counter shaft and bearing failures. Some of the problems can be the rare factory screw-up, but MANY of the
mechanical problems discussed on this site are operator abuse and negligence. Many times by a previous owner, who then sells his problems to an unsuspecting buyer.

I loved my first DR650, but a guy heading to South America made me an offer I couldn't refuse, so I took the money and turned around and bought me another one. Of the more than 20 motorcycles I have owned, I have enjoyed the simplicity of the DR650 more than any of the others. I have ridden a number of 1,000+ mile dual sport trips all over the Southwest, and have barely scratched the surface of what's out there to ride.

Your ride report was impressive.

Ride safe,

Taz9
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Old 03-21-2012, 04:50 PM   #61745
Harry94025
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Joined: Feb 2010
Oddometer: 230
Hi Guys,

Are there any external indications of when a carburetor has been modified? My '99 had a Supertrapp IDS2 and K&N air filter when I first got it. The "muffler" was too loud, so I replaced it with a stock muffler. My plugs are consistently black and the bike gets only about 40-45 mpg.

If it was modifed, what is needed to bring it back to stock?

Thanks,
Harry
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Old 03-21-2012, 04:59 PM   #61746
vnsfxr
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Joined: May 2003
Location: Lake County California
Oddometer: 242
Quote:
Originally Posted by Toxic Mark View Post
I recently mounted Kenda Big Blocks on my DR (OEM wheel set) and immediately noticed that I have lost highway speed stability (wobbles) anywhere above 65 mph indicated. Is this what I should have expected? When I ride with my brother who lives at the foot of the San Bernadino mountains I'm happy to have the knobs, but when I am back up in the Bay Area where I have to slab it to get to dirt I hate them.

I've toyed with the idea of a second wheel set with something along the lines of GP-1s. I've tried troubleshooting the wobble with no success. And I don't want to be swapping tires everytime I head south.

Ideas? Advice? How stable is your DR at highway speeds? And what tires are you on that provide that stability? Would a 19" front provide more stability over a 21" given the same tire?

-Mark
First ride on the KBBs and it felt like I was riding a bicycle, started lowering the pressure to reduce the pucker factor. They have stiff side walls so with the psi around 25 I wasn't riding on much tire and the bike fell into corners.

No load just me 195-200lbs with gear I settled on 14-17 F, 16-19 R stable up to 70mph with enough air left to avoid dented rims as sane off road speeds.

If you have the stock sail plane fender it will get wobbly with cross winds at speed. I ride with the stock fender the cutesey motard fenders let you get pretty muddy and wet. Second thing I changed after binning the 2 Bros wannabe muffler.
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Old 03-21-2012, 05:06 PM   #61747
Tech23
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Joined: Oct 2007
Location: Arizona Desert
Oddometer: 454
Quote:
Originally Posted by Harry94025 View Post
Hi Guys,

Are there any external indications of when a carburetor has been modified? My '99 had a Supertrapp IDS2 and K&N air filter when I first got it. The "muffler" was too loud, so I replaced it with a stock muffler. My plugs are consistently black and the bike gets only about 40-45 mpg.

If it was modifed, what is needed to bring it back to stock?

Thanks,
Harry

Is the air box opened up or stock? It sounds like the carb was jetted richer for the supertrapp and putting the stock muffler back on has created an overly rich condition. The only thing you might be able see externally would be if the mixture screw factory plug has been removed. You'll have to look inside the carb to see what's been changed. Are you sure you want to spend the time and energy to fix...and I use that term loosely the BST CV carb?

Tech23
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Old 03-21-2012, 05:36 PM   #61748
doug s.
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Joined: May 2011
Location: md
Oddometer: 1,222
Quote:
Originally Posted by newride View Post
So I have put about 11,000 miles on my DR with a stock seat (with an Alaska sheep skin cover). I threw my back out today and have a feeling that the stock seat added to my problem. My question is not if a seat upgrade for the DR is a good thing. I know that it is.
My question is a comfortable seat for the DR allow one with back pain to ride it with little or no pain?
Thanks,
J
i have a corbin seat, which i like a lot; the stock seat would have me sore in 15 minutes. can't say how it will affect back pain, tho. but i can say this - an inwersion table cured me of 10 years of daily chronic back pain from a ruptured disc, in about two weeks. i highly recommend getting one... one of many brands out there:
https://www.teetertv.com/

doug s.
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Old 03-21-2012, 05:44 PM   #61749
sagedrifter
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Joined: Apr 2006
Location: Jacksonville, Alabama
Oddometer: 1,352
Quote:
Originally Posted by Harry94025 View Post
Hi Guys,

Are there any external indications of when a carburetor has been modified? My '99 had a Supertrapp IDS2 and K&N air filter when I first got it. The "muffler" was too loud, so I replaced it with a stock muffler. My plugs are consistently black and the bike gets only about 40-45 mpg.

If it was modifed, what is needed to bring it back to stock?

Thanks,
Harry
That depends on what was done to your carb. To return to stock you would need the stock needle and the stock main jet. The pilot jet may be oversized, the slide spring may be cut, the slide may have an extra hole. Or it may have a shimmed needle and larger main and nothing else.

Is the air box cut open on top? Side cover in place, is it cut open?

If you have zero carb work under your belt you may want to see your local Suzuki dealer.

Or, maybe get a used stock carb, I sold mine for $100 ready to install.
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Old 03-21-2012, 05:48 PM   #61750
ER70S-2
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Joined: Sep 2009
Location: SE Denver-ish
Oddometer: 4,038
Quote:
Originally Posted by Harry94025 View Post
Hi Guys,

Are there any external indications of when a carburetor has been modified? My '99 had a Supertrapp IDS2 and K&N air filter when I first got it. The "muffler" was too loud, so I replaced it with a stock muffler. My plugs are consistently black and the bike gets only about 40-45 mpg.

If it was modifed, what is needed to bring it back to stock?

Thanks,
Harry
Look here on your bike. If there's a flush brass plug, your carb is probably stock, maybe. A mirror will help. If it has an aftermarket idle fuel screw, someone has probably done more. An opened up airbox, as already mentioned, implies work done in the carb. Also look at the two screws holding the black plastic lid on the carb and the two holding the float bowl; phillips type screws are stock, allen head screws are a sure tip that someone has been in the carb.



Here you can see the allen head that has replaced the phillips. I use a washer to give maximun surface area when going thru plastic, alum, etc. Right next to it, you can also see the vacuum hose that runs the petcock. (a teaching moment )

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Quote:
Originally Posted by Threewheelbonnie View Post
"BTW, I don't do style. It's a dirt bike, not some girlie dress-up thing." -
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Old 03-21-2012, 06:12 PM   #61751
Rugby4life
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Joined: Mar 2012
Location: Upstate SC (GSP area)
Oddometer: 642
DR650 Newbie

Hi,
I just bought a new (to me) '08 DR650. This is my first real dual purpose bike although back in the last century I used to take a number of my UJMs down dirt roads and across a few fields. It's bone stock, at least it was until I got home. Had to get rid of the useless stock mirrors I already know what my shoulders look like, I need to see that Buick about to slam me at the red light. Now I want to turn it into a R1200GS wanna be.
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Old 03-21-2012, 06:22 PM   #61752
Nibis
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Joined: Apr 2009
Location: Troy, Mo.
Oddometer: 844
Quote:
Originally Posted by Rugby4life View Post
Hi,
I just bought a new (to me) '08 DR650. This is my first real dual purpose bike although back in the last century I used to take a number of my UJMs down dirt roads and across a few fields. It's bone stock, at least it was until I got home. Had to get rid of the useless stock mirrors I already know what my shoulders look like, I need to see that Buick about to slam me at the red light. Now I want to turn it into a R1200GS wanna be.
You need these, I'm not sure you wanna see the Buick though, LOL
http://www.doubletakemirror.com/build/suzuki
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Old 03-21-2012, 06:30 PM   #61753
vnsfxr
BornAgainDirtyRider
 
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Joined: May 2003
Location: Lake County California
Oddometer: 242
Quote:
Originally Posted by newride View Post
So I have put about 11,000 miles on my DR with a stock seat (with an Alaska sheep skin cover). I threw my back out today and have a feeling that the stock seat added to my problem. My question is not if a seat upgrade for the DR is a good thing. I know that it is.
My question is a comfortable seat for the DR allow one with back pain to ride it with little or no pain?
Thanks,
J
I have a blown out back with plates & screws so sympathize.

I use a Sargent seat, this helps the butt. To help the rest you need to concentrate on your posture and core strength. Also check handlebar height in relation to your size. You want your forearms to be parallel with the ground with out alot of forward lean. Having the correct height for your frame will help you maintain good posture.
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Old 03-21-2012, 06:35 PM   #61754
ER70S-2
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Joined: Sep 2009
Location: SE Denver-ish
Oddometer: 4,038
Quote:
Originally Posted by 996DL View Post
This is invaluable advice, don't argue with it and let's include / highlight it, in Krusty's DR thread index, someone...

996DL
Good idea and added to the Suspension/Chassis Index.
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2004 DR650: 57,306 miles of

SUZUKI DR650SE INFORMATION INDEX
Quote:
Originally Posted by Threewheelbonnie View Post
"BTW, I don't do style. It's a dirt bike, not some girlie dress-up thing." -
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Old 03-21-2012, 06:38 PM   #61755
Rugby4life
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Joined: Mar 2012
Location: Upstate SC (GSP area)
Oddometer: 642
Quote:
Originally Posted by Nibis View Post
You need these, I'm not sure you wanna see the Buick though, LOL
http://www.doubletakemirror.com/build/suzuki
It's a lot harder to dodge what you can't see (split a lane, save a life). Thanks for the mirror suggestion. I already put on a set of mirrors I had laying around from a previous bike. They have a longer stalk but are exposed if I go down. I'll keep yours in mind if these literally bite the dirt.
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