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Old 08-24-2012, 03:52 PM   #68581
edwardo
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Joined: Jul 2009
Location: southern MO
Oddometer: 62
To mod or not to mod...

Hello all...hope you don't mind a somewhat retarded question...

I have added the pumper to my DR. Along with a 13/42, I am loving the ride I'm getting from it (secondary, gravel, moderate trail). From the thread, it seems the GSXR exhaust is getting harder to come by. I have the stock muffler currently and really like the lack of noise from it. BUT...if the GSXR or 'busa exhaust would open another door, I wouldn't mind spending the coin...
My question: what kind of performance increase could I appreciate from the exhaust modification??
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Old 08-24-2012, 06:12 PM   #68582
barko1
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Location: Las Cruces, NM or thereabouts
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Originally Posted by dljocky View Post
173K miles, now that's what I'm hoping for!

And I have a nice ocean front property for sale in Nevada if you're interested
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Old 08-24-2012, 06:24 PM   #68583
Krusty ...
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Joined: Dec 2004
Location: Richardson, TX
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Quote:
Originally Posted by edwardo View Post
My question: what kind of performance increase could I appreciate from the exhaust modification??
Flow-wise, the stock can isn't really too bad. It's heavy though; many replace it more to save weight (which helps performance in all areas) than to increase power output.
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Old 08-24-2012, 08:10 PM   #68584
jugglingogre
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Joined: Nov 2011
Location: Hamilton VIC
Oddometer: 190
Quote:
Originally Posted by Krusty ... View Post
Flow-wise, the stock can isn't really too bad. It's heavy though; many replace it more to save weight (which helps performance in all areas) than to increase power output.
With my 105kg (230lbs) + gear, a couple of kg's can is really not going to make a hell of a lot of difference. Me eating less might have a much bigger impact on performance
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Old 08-24-2012, 09:17 PM   #68585
TRAVELGUY
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Joined: May 2008
Location: Georgetown, In / Costa Rica
Oddometer: 555
Changed to the Ti GSXR can a few weeks ago. Using my digital scales there is a 6 lbs 4 oz weight savings weighting both then GSXR muffler and mid pipe aganist the stock DR muffler. Made no changes to carb jetting. Mileage nor performance seemed to change. So if you want to save 6 lbs 4 oz make the change. I liked the quite of the stock pipe but wanted the weight savings since I always over pack when traveling.

TravelGuy.

Quote:
Originally Posted by edwardo View Post
Hello all...hope you don't mind a somewhat retarded question...

I have added the pumper to my DR. Along with a 13/42, I am loving the ride I'm getting from it (secondary, gravel, moderate trail). From the thread, it seems the GSXR exhaust is getting harder to come by. I have the stock muffler currently and really like the lack of noise from it. BUT...if the GSXR or 'busa exhaust would open another door, I wouldn't mind spending the coin...
My question: what kind of performance increase could I appreciate from the exhaust modification??
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Old 08-24-2012, 11:10 PM   #68586
toddiscdn
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Joined: Jul 2008
Location: Blue Point, Ontario
Oddometer: 965
Since weight came up

Its a little slow on the night shift tonight so I broght the DR in and put it on the scales out of curiosity.

Mostly stock, 08 DR, IMS tank=less than half full, , Dirtbagz rangers and racks, rear rack with wolfman peak bag, wolfman enduro tank bag, small gps, vapor, blah, blah, blah.....

Anywho it came out to 388 lb.s, better than I though. The gas is quite low though, likely 1.5 gals. left or so.


Things you do to kill time on the night shift eh!
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Old 08-25-2012, 12:42 AM   #68587
jugglingogre
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Joined: Nov 2011
Location: Hamilton VIC
Oddometer: 190
Lucky Catch Today

Took the sprocket cover off to check if it needed a degrease this arvo.....

Glad I did.



Missing one bolt completely, one is oh so loose (left) and the third (right) is moving. This could have been oh so bad. Sprocket moves if it's wiggled.

Hopefully the missing one is not snapped off and in the drive.

Cheers

Pete
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Old 08-25-2012, 01:53 AM   #68588
Kommando
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Joined: Nov 2006
Location: Spacecoaster FL
Oddometer: 6,422
Quote:
Originally Posted by dragnbiker View Post
Just finished my breakin service on my 2012 dr650. And im lookin into upgrades .. however the aftermarket for the bike has changed since i moded my 2001. Can someone tell me what exhust / jetkit and intake will give me the most hp gain. They dont make the yoshimura system i had on my 2001 anymore.. and have they made a racing cdi for it yet ?
A LOT has come into the DR aftermarket in the last few years. Some people are now making over 50WHP with these engines, through big-bore kits, cams, big-valve heads, and other mods.

Check out www.kientech.com and www.procycle.us for many of the popular performance mods. A popular air/fuel setup is an FCR39 or a TM40 flat-slide pumper carb, a GSX-R X40F0X muff with Kientech midpipe, a foam airfilter (Uni, TwinAir, etc.), and a cut airbox. Some people are also experimenting with EFI.
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Old 08-25-2012, 03:26 AM   #68589
TrophyHunter
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Joined: Aug 2009
Location: San Diego
Oddometer: 1,801
Emmbeedee - sorry to hear the ride was cut short but probably the prudent choice. Just a hint on turning in the rental if you have a choice. Check how much it costs to turn it in at different return locations. Some are overstocked on certain trucks/trailers and charge you more to drop it there vs 5 - 10 miles away. I rented a car trailer one way and saved 30% by driving 4 miles.

It's good the two of you get out together.
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Old 08-25-2012, 05:32 AM   #68590
thetable
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Joined: Jul 2008
Location: Western Loudoun Co, VA
Oddometer: 1,154
Quote:
Originally Posted by Emmbeedee View Post
My wife's bike blew out its countershaft oil seal and lost a lot of oil. I could probably have fixed it but we decided to load both up and come home to fix it properly.
Any warning. My tard is currently leaking at the seal when she gets hot, I'd rather not find myself hot in a corner with a well lubricated rear tire.
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Old 08-25-2012, 05:45 AM   #68591
Emmbeedee
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Location: Near Ottawa, ON, Canada
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Quote:
Originally Posted by thetable View Post
Any warning. My tard is currently leaking at the seal when she gets hot, I'd rather not find myself hot in a corner with a well lubricated rear tire.
No warning but it usually happens to a cold engine. Like first thing in the morning.
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Old 08-25-2012, 06:58 AM   #68592
thetable
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Joined: Jul 2008
Location: Western Loudoun Co, VA
Oddometer: 1,154
Quote:
Originally Posted by Emmbeedee View Post
No warning but it usually happens to a cold engine. Like first thing in the morning.
Far better that way. I mean, it makes for a crappy day regardless, but better that way than any other. I've known of a couple DRZSMs to lose the countershaft seal while everything is good and hot.
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Old 08-25-2012, 08:16 AM   #68593
JagLite
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Joined: Jun 2010
Location: Anchorage Alaska
Oddometer: 917
Cool2 No worries

Quote:
Originally Posted by jugglingogre View Post
Took the sprocket cover off to check if it needed a degrease this arvo.....

Glad I did.



Missing one bolt completely, one is oh so loose (left) and the third (right) is moving. This could have been oh so bad. Sprocket moves if it's wiggled.

Hopefully the missing one is not snapped off and in the drive.

Cheers

Pete
One bolt will work fine actually. There is no load on the bolts and the sprocket can move around on the spline without problem. Some people use a snap ring (C-clip) instead of the bolt plate. The missing bolt just fell out on the ground and it may have been many miles ago.The 14-15-16 tooth sprockets use a 3 bolt retainer generally, the 13 tooth uses a 2 bolt retainer and they all work fine. Stock has a rubber gasket for anti-rattle I believe but is not required.

The important thing is to not have the sprocket come off the shaft, which I don't know if it can with the sprocket cover on. So, no worries.
Get a new bolt and use blue loctite and you can move on to real worries like running out of gas.
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Old 08-25-2012, 10:34 AM   #68594
sandwash
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Location: Flagstaff Az
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Here is a good write up for light reflection:
http://drriders.com/topic5526.html
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Old 08-25-2012, 10:52 AM   #68595
MeterPig
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Location: Parker, Colorado...
Oddometer: 17,054
I picked up the dt-1 filter. It's my opinion the dt-1 meets my expectations better than the twin air filter. And it's the same price as the twin air on procycle's site.
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