the DR650 thread

[Krusty ...]

Originally Posted by edwardo

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.

[jugglingogre]

Originally Posted by Krusty ...

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

[TRAVELGUY]

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.

Originally Posted by edwardo

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??

[toddiscdn]

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!

[jugglingogre]

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

[Kommando]

Originally Posted by dragnbiker

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.

[TrophyHunter]

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.

[thetable]

Originally Posted by Emmbeedee

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.

[Emmbeedee]

Originally Posted by thetable

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.

[thetable]

Originally Posted by Emmbeedee

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.

[JagLite]

Originally Posted by jugglingogre

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.

[sandwash]

Here is a good write up for light reflection:
http://drriders.com/topic5526.html

[MeterPig]

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.

[smilin jack]

Originally Posted by jugglingogre

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

Yes blue loctite is your friend. Pretty much every threaded fastener on my DR gets a TINY amount to keep the bolt from vibrating loose.

Wilco farm stores have a HUGE assortment of metric screws, bolts and fancy fasteners. Check them out. No I don't work for them... just shop there.

Dave

[Emmbeedee]

Originally Posted by TrophyHunter

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.

Actually, we did save $106 by returning the truck to a different depot than the one nearest us. It was more like 50km farther, but in a direction we needed to go anyway to try to find some parts and oil.

But thanks for the suggestion.

The really funny part of the truck rental was that the depot couldn't get the U-Haul web site up to get me a price until I offered to tether my iPhone to their laptop. Then the site came in beautifully.