|10-20-2013, 03:16 AM||#1|
Joined: Aug 2009
2003 640 Adventure
So I guess I was lucky, just bought a 2003 640 Adventure form the first owner. The bike is in like new condition, it is like it was taken from the dealer on week ago. It shines so badly that it hurts my eyes, well that will be sorted in a few weeks. It was never taken off road, and it seems that it was never taken on road on a rany day. Nothing has been added on the bike and nothing has been taken of the bike. THe front rim recal was done. It has 20.000KM or 12.500miles.
So I have been reading this site for the past few days and learned the thingh to do, but I have still some issues.
I will take it in the desert for riding the dunes.
1. Is there anything to do with the engine in terms of reability? Change some bearings, piston, rings, gaskets....?
2. I will open it up based on the directions on this site. I still have to figure out what to do with the european version of the exhaust.
I will go with the bigger main, drilling two holes, and raising the needle in the carb.
I'm not shure what to do with the airbox. The bike will be riden in the sand is the open airbox cover a good idea or is it better to pull out the snorkel?
How higher will be the fuel consumptin because of this basic mods?
Thanks for the anwers.
|10-21-2013, 02:29 PM||#3|
Joined: Feb 2006
Location: Kennewick, WA
I had a 2001 for a few years and read all the stuff here about them. Forget about modifying the engine or carb. Just tune the carb and ride. It has plenty of power and noise as is.
Instead, spend $$ on the suspension. I got a full re-valve and it is night and day! (Also a better seat.)
2008 Suzuki V-Strom 650
|10-21-2013, 03:32 PM||#4|
Joined: Dec 2003
Location: Northern New Mexico
I have an 2003 625 SXC. Our bikes are similar yet different.
First off issues. The older 640 would often develop a oil leak off the head valve cover area. There is a fix it online here at ADV.
If your bike has he CV carb. (the newer 640s did) and you want better response. Get a pumper carb. The SXCs have pumpers they work great.
The biggest issue with your bike is for you to protect your gas tank. Those tanks really take a hit when these bikes go down. Most break off peacocks, some break the tanks. Try to find a gas tank guard for your bike. Those fuel tanks use to sell for something like 800 bucks if you break them.
|10-21-2013, 04:10 PM||#5|
Big Bike, Slow Rider
Joined: Jun 2008
Location: Frankston, Australia
Have you seen the main threads here on ADV.
More knowledge here than anywhere except the factory:
And a bit of Aussie flavour:
1. Read threads above (especially the first thread).
2. Change oil
3. Adjust valves
4. Keep a really good eye on the inlet valve roller (do a search for the expensive damage this sucker can do).
5. Ride bike until face muscles hurt too much from grinning.
IMO, the bikes require more maintenance than a Jap 650, but reward you better.
2005 KTM 640A
|10-21-2013, 06:34 PM||#6|
Joined: Dec 2005
Location: valley of the sunstroke, AZ
so your specifically interested in riding the dunes? is that what you'll be doing 99% of the time? i think you got the wrong bike.
|10-21-2013, 09:43 PM||#7|
Joined: Nov 2004
Location: Oxbow Lake
Oh, I think sand is great.
A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.
It is not the destination, it's the journey.
|10-21-2013, 10:06 PM||#8|
Joined: Jul 2005
Pull the snorkle, raise the needle a notch, get the comp muffler from KTM.
As was said put your money in a seat and suspension, especially getting a rear spring for your weight if you are large.
But first ride the fucker for a year.
'02 KTM 640 Adventure-lowered
"On the road there are no special cases."
Cormack McCarthy-The Crossing
The faster it goes the faster it breaks.
And high performance=high maintenance.
|10-22-2013, 01:23 PM||#9|
Joined: Aug 2009
Thanks for all your replyes!
Maybe I didn't explain myself clearly in my post, english is not my native language.
I'm not going to modify the engine for better performance, nor changing the carb for better performance.
I just want to know if I have to check something in the engine at 20000km for reability concerns. The engine had till now an easy life.
I am a long term KTM EXC user, I had a lot of them, different type of them and I did all themaintenance by myself, including piston changes on 4t, and suspension tuning.
One day me and my EXC mates decided (with a little help of some beers) that we should take a trip to the Tunisian desert, so here we are, searching for bikes that can take us to Tunisia with all the lagguage and highways in between. I'm the only one in the group who did this trip three times with an Africa twin and one time with a EXC 450 taken down and supported with a desert truck. Fro now there is my 640 adv, an 690 enduro and a Tenere XT660z getting ready to go.
When I was searching for my adv I came across a well used 2003 example with a rejetted carb, removed snorkle and moded stock EU silencer by a guy who works in Akrapovic factory (I'm from Slovenia where Akrapovic is home). It sounded spectacular! Not too loud but very deep and punchy and it pulled very hard from the bottom all to8500 rpm. I didn't take the bike because I came across a better deal, but my bike stock as it is it feels like it is dead in comparison.
I searched all the forum form carb jetting, exhaust mods and airbox mods and came to this conclussions:
1. Carb jetting, no issue here, all clear for me.
2. Airbox mods. It is stated here that the open. Side cover is better than removing the snorkel, but since I will be driving in the desert I think that a open side cover is not such a good idea. Any opinion on this?
3. Exhaust. I found out on this site that our EU version of the exhaust is difficult to uncork and you are better of witha slip on exhaust. I came across a wings slip on which have a straight tru pipe and a db killer at the end.
Are all the aftermarket slip on a straight tru pipe or do they have different stages inside?
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