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Old 08-22-2012, 05:57 PM   #68476
ntm1973
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Suspension and exhaust

I ordered a hayabusa/kientech exhaust with a spark arrestor already installed and am looking forward to shedding a little weight but I would like to keep my jetting stock if possible. In fact, my only reason for wanting an aftermarket exhaust is to shed some weight. I went down the cut the airbox top/jet kit route and prefer the stock setup with one shim raising the needle. Has anyone done the hayabusa exhaust and kept the airbox stock? I know jetting is a case by case science but I was hoping for a starting point for people who have done the hayabusa exhaust with a stock airbox.

Also; Has anyone tried tuning the front fork on the cheap by changing the compression or rebound holes slightly? I am not a big guy (170lbs without gear) or an aggressive rider and I don't feel that I need emulators but would like a little more plushness up front. Has anyone done any experimentation?

Thanks for any words of wisdom!
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Old 08-22-2012, 06:29 PM   #68477
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nice. been to Glacier several times and it always impresses.

Quote:
Originally Posted by ShadyRascal View Post
I'll see that and raise you a Glacier park/Rocky mountain front loop



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Old 08-22-2012, 06:34 PM   #68478
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Quote:
Originally Posted by Motodeficient View Post
Interesting G-tech results there! I haven't heard much talk about 1/4 miles times or 0-60 times for the DR650.
Here's a good compendium:

http://dalefranks.com/cycles/wp-cont...anPerfIndx.pdf

Shows the DR650 0-60 in the mid 5s, 1/4 mile in the (very) low 14s.
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Old 08-22-2012, 07:12 PM   #68479
ram1000
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Quote:
Originally Posted by ntm1973 View Post
I ordered a hayabusa/kientech exhaust with a spark arrestor already installed and am looking forward to shedding a little weight but I would like to keep my jetting stock if possible. In fact, my only reason for wanting an aftermarket exhaust is to shed some weight. I went down the cut the airbox top/jet kit route and prefer the stock setup with one shim raising the needle. Has anyone done the hayabusa exhaust and kept the airbox stock? I know jetting is a case by case science but I was hoping for a starting point for people who have done the hayabusa exhaust with a stock airbox.

Also; Has anyone tried tuning the front fork on the cheap by changing the compression or rebound holes slightly? I am not a big guy (170lbs without gear) or an aggressive rider and I don't feel that I need emulators but would like a little more plushness up front. Has anyone done any experimentation?

Thanks for any words of wisdom!
Keep the stock jetting with those changes and you'll likely burn a valve.
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Old 08-22-2012, 08:24 PM   #68480
Meter Man
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Quote:
Originally Posted by ShadyRascal View Post
I'll see that and raise you a Glacier park/Rocky mountain front loop



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Old 08-22-2012, 10:17 PM   #68481
TRAVELGUY
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I'm running a GSXR pipe with stock carb and jetting and having no problems. All it did was save weight which is what I was hoping for.

TravelGuy.

Quote:
Originally Posted by ntm1973 View Post
I ordered a hayabusa/kientech exhaust with a spark arrestor already installed and am looking forward to shedding a little weight but I would like to keep my jetting stock if possible. In fact, my only reason for wanting an aftermarket exhaust is to shed some weight. I went down the cut the airbox top/jet kit route and prefer the stock setup with one shim raising the needle. Has anyone done the hayabusa exhaust and kept the airbox stock? I know jetting is a case by case science but I was hoping for a starting point for people who have done the hayabusa exhaust with a stock airbox.

Also; Has anyone tried tuning the front fork on the cheap by changing the compression or rebound holes slightly? I am not a big guy (170lbs without gear) or an aggressive rider and I don't feel that I need emulators but would like a little more plushness up front. Has anyone done any experimentation?

Thanks for any words of wisdom!
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Old 08-22-2012, 10:40 PM   #68482
NordieBoy
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Quote:
Originally Posted by Rumlover View Post
Cheat if you have to, but I want a time reported in the 13s.
I actually expected the DR to break 14 as my 558cc Nordwest did 14.1 and I feel the DR has a much better bottom end.
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Old 08-23-2012, 05:15 AM   #68483
Mambo Dave
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Quote:
Originally Posted by sagebrushocean View Post
Here's a good compendium:

http://dalefranks.com/cycles/wp-cont...anPerfIndx.pdf

Shows the DR650 0-60 in the mid 5s, 1/4 mile in the (very) low 14s.
Interesting data there, but why in the world does the 2007 DR650SE do the 60-to-Zero stop in 131 feet while the older DR650, from 1996, stops in 118 feet?
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Old 08-23-2012, 05:54 AM   #68484
Rusty Rocket
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Quote:
Originally Posted by Mambo Dave View Post
Interesting data there, but why in the world does the 2007 DR650SE do the 60-to-Zero stop in 131 feet while the older DR650, from 1996, stops in 118 feet?
glad I have a '96
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Old 08-23-2012, 07:06 AM   #68485
Rob.G
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Quote:
Originally Posted by Mambo Dave View Post
Interesting data there, but why in the world does the 2007 DR650SE do the 60-to-Zero stop in 131 feet while the older DR650, from 1996, stops in 118 feet?
Could just be a difference in break-in on the pads and rotors. I think the brakes on my DR650 suck, so my '96 probably falls into the 130-foot range. My G-Tech does do 60-0 braking too... suppose I could practice and see what it does.

Soon as I get a tap to chase the threads on my 15T sprocket, I can swap it on and go do some more testing.

Rob
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Old 08-23-2012, 08:27 AM   #68486
Fire Escape
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Eh? Statistics

Quote:
Originally Posted by Mambo Dave View Post
Interesting data there, but why in the world does the 2007 DR650SE do the 60-to-Zero stop in 131 feet while the older DR650, from 1996, stops in 118 feet?
I believe Sannuel Clemmons is credited with saying that there are three kinds of 'untruths', Lies, Damned Lies and Statistics!
At first glance that looks like a big difference, and it would seem like one if there was a stopped truck you could not go around at 125'. The difference is 13', which is 0.15 seconds (at 60 mph). Despite having been told more than once how exactly skid marks can be used to calculate speed, I think that you could easily make that big a difference by altering tire pressures, temperatures, the tires themselves or the texture of the pavement. As I have heard said "That is why they play the game". Statistics, no matter how carefully recorded, from different times and places don't really tell you the whole story. There could have been lots of reasons for a 13' difference in 60 to 0 stopping over an 11 year period, I doubt we will ever know them.


Bruce
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Old 08-23-2012, 10:19 AM   #68487
TinkerinWstuff
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Quote:
Originally Posted by Mambo Dave View Post
Interesting data there, but why in the world does the 2007 DR650SE do the 60-to-Zero stop in 131 feet while the older DR650, from 1996, stops in 118 feet?
Quote:
Originally Posted by Fire Escape View Post
I believe Sannuel Clemmons is credited with saying that there are three kinds of 'untruths', Lies, Damned Lies and Statistics!
At first glance that looks like a big difference, and it would seem like one if there was a stopped truck you could not go around at 125'. The difference is 13', which is 0.15 seconds (at 60 mph). Despite having been told more than once how exactly skid marks can be used to calculate speed, I think that you could easily make that big a difference by altering tire pressures, temperatures, the tires themselves or the texture of the pavement. As I have heard said "That is why they play the game". Statistics, no matter how carefully recorded, from different times and places don't really tell you the whole story. There could have been lots of reasons for a 13' difference in 60 to 0 stopping over an 11 year period, I doubt we will ever know them.


Bruce
simple answer

Steroids

New testing procedures probably hold the '07 to a new standard and the old statistics from the '96 era should probably be marked with an *
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Old 08-23-2012, 11:01 AM   #68488
Rusty Rocket
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tire deal

http://newjersey.craigslist.org/mcy/3223077921.html
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Old 08-23-2012, 11:08 AM   #68489
TinkerinWstuff
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Quote:
Originally Posted by Rusty Rocket View Post
probably needs the money to pay the maid
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Old 08-23-2012, 07:40 PM   #68490
isgila
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WTB: DR650SE 96 rear shock

Good day guys,
Anybody got a spare rear shock to let go for cheaps.
Want to sent it to rick at CD for the group buy.
Way too expensive to sent mine from Singapore.
Or can someone pls check which year is compatible with 96 model.
Pls PM me
Thanks

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