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Old 01-07-2012, 10:50 PM   #6946
sickscooter
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Joined: Feb 2008
Location: Port Pire
Oddometer: 10
my 04 640 supermoto/dirt

Hi everyone, In 2011 i bought a 04 ktm lc4 supermoto and bought/made the bits to convert it for offroad riding as well thinking it would be good for dual purpose.
The reason i bought this bike was the lads at work have them and advised me they do alot of km's and last forever, however after setting out on my first ride of 2000km's i came home with a bad rattle and found i had a damaged conrod, oil pump and piston/bore has a few marks as well. Credit where credit is due the bike sounded like it was going to fly apart for the last 1000km and did'nt so they must be pretty strong.
So now i guess im up for some advise on what brand internals to use in the motor and what needs to be done to the bore before a new piston goes in.
Any ideas just shoot me a msg. craig

Tried uploading pics but having trouble, i will try again later
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Old 01-08-2012, 08:43 AM   #6947
*thomas*
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Joined: Jan 2010
Location: Brussels, Belgium
Oddometer: 170
Hi all,

I came across this bike for sale. Owner is claiming it's a 620 LC4 rally. The bike has been up for sale a year ago and it than had the rear tanks from an adventure/rally.

But I'm not to sure what it actually is and so does the owner (or he is not being honnest).









Thanks,

Thomas
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Old 01-09-2012, 07:03 AM   #6948
overlandr
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Joined: Nov 2003
Location: Sydney
Oddometer: 5,820
Quote:
Originally Posted by *thomas* View Post
Hi all,
I came across this bike for sale. Owner is claiming it's a 620 LC4 rally. The bike has been up for sale a year ago and it than had the rear tanks from an adventure/rally.
You might try posting this in the Australian Sub-forum.
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Old 01-09-2012, 01:50 PM   #6949
mancunian
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Joined: Jul 2011
Location: Manchester TRF England
Oddometer: 250
adventure/rally

Has it got electric start Thomas?
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Old 01-11-2012, 07:59 AM   #6950
NVTS
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Joined: May 2006
Location: Big Lick Virginia
Oddometer: 601
I've searched and can't find any definitive info... I need a centerstand for my 02 640A. It has a sidestand on it now. Where can I source one? NVTS
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Old 01-11-2012, 12:59 PM   #6951
jonnyw
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Joined: Apr 2010
Oddometer: 585
2 Risers

I got a set of risers coming from a inmate. Will I need a longer clutch cable? I thought I remeber seeing that a certain year YZ is a inch or so longer than stock.
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Old 01-11-2012, 01:00 PM   #6952
jonnyw
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Joined: Apr 2010
Oddometer: 585
2"Risers

I got a set of risers coming from a inmate. Will I need a longer clutch cable? I thought I remeber seeing that a certain year YZ is a inch or so longer than stock.
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Old 01-11-2012, 01:05 PM   #6953
jonnyw
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Joined: Apr 2010
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What are your concerns?

Quote:
Originally Posted by *thomas* View Post
Hi all,

I came across this bike for sale. Owner is claiming it's a 620 LC4 rally. The bike has been up for sale a year ago and it than had the rear tanks from an adventure/rally.

But I'm not to sure what it actually is and so does the owner (or he is not being honnest).









Thanks,

Thomas
Looks like a sweet find. With some nice bits cockpit,bash plate ect. I cant tell if it has a e-starter. But it does have a street version mid pipe. But that doesn't mean much. It probally had twins on the rear if it had rear tanks.
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Old 01-11-2012, 03:38 PM   #6954
ChrisC
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Joined: Feb 2003
Location: Prescott, Arizona USA Earth
Oddometer: 6,317
Quote:
Originally Posted by NVTS View Post
I've searched and can't find any definitive info... I need a centerstand for my 02 640A. It has a sidestand on it now. Where can I source one? NVTS
KTM World's parts search shows:


ORDER
QTY REF.
NO. CENTER STAND
DESCRIPTION 640 LC4 ADV
REQ RETAIL
PRICE EACH KTM World's
PRICE EACH
10 CENTER STAND 378MM SILVER 1 118.96 105.87
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Old 01-11-2012, 09:45 PM   #6955
bmwktmbill
Traveler
 
Joined: Jul 2005
Location: Traveler
Oddometer: 4,854
Quote:
Originally Posted by Can Fly View Post
I have an "06 640. I can't get it to kickstart with a charged battery!
For that matter, it starts easily only when the ambient temp is high(read summertime). I think the issue is the headlights are always on when trying to start the sucker. I asked KTM dealer about this, he looked at schematic, and agreed there did not appear to be an automatic headlight cuttout when starter button pushed. I intend to have a mechanic try and fix this situation for me. Then start working on replacing useless headlamps with brighter ones or adding auxiliary lighting.
Can,
If you want an easy way to turn the headlight off install an on/off shitch on the ground wire for the low beam. Mount it on the dash. Now you can cut off the low beam headlamp easily when ever you want, You can run no lights' when off road during the day, etc..

As for our wish for more light there are two ways. Auxillary lighs of some type or replace your bulbs with HID's. The HID replacement isn't something for the inexperienced but there are many threads on this subject and the results are outstanding.

A simple fix that I have no tried(I did HID's.) would be to rewire so that when using Hi beam your low beam stays on doubling your light.

To get an idea of that use the trigger on the light switch to check out this idea on your next night ride.

Rewirinfg should be straight forward to accomplish this, it's how I run my HID's.
billl
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'02 KTM 640 Adventure-lowered
"On the road there are no special cases."
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The faster it goes the faster it breaks.
And high performance=high maintenance.
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Old 01-11-2012, 10:06 PM   #6956
bmwktmbill
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Joined: Jul 2005
Location: Traveler
Oddometer: 4,854
Quote:
Originally Posted by jonnyw View Post
I got a set of risers coming from a inmate. Will I need a longer clutch cable? I thought I remeber seeing that a certain year YZ is a inch or so longer than stock.
Jon,
I am running risers and stock cables. My machine came to me set up that way.

Here's a pic but it's not much help.


bill
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'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.
Bill Shockley
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Old 01-12-2012, 05:11 AM   #6957
mxchamp
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Joined: Mar 2005
Location: The corn state,11 curves in 318 miles (Iafalls IA)
Oddometer: 1,433
Me too Jon.

Running the stenhouse racing risers along with 2" Rox risers.

Had to get a longer decomp cable made, stock clutch cable rerouted and took the throttle cable and put it behind the mirror stem instead of in front.

I am 6'4" and it works great along with my Renazco.




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Old 01-12-2012, 03:28 PM   #6958
Subaru297
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Joined: Aug 2011
Location: Calgary, AB
Oddometer: 116
I can also confirm that the decomp cable is the limiting cable. I installed Rox risers and the throttle and clutch were both fine with a little rerouting. I think I will just remove the decomp as I never need it anyway.

Cheers
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Old 01-12-2012, 05:34 PM   #6959
gunnerbuck
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Joined: Nov 2005
Location: N.V.I, B.C.
Oddometer: 3,909
It is pretty easy to fashion a longer decomp cable using the brake cable from a pedal bike... Just cut the the sheathing and then the cable to the desired length, transfer the old cable adjusters to the bike cable and then make a new knob by drilling out the right sized metal dowel, slide the cable through and then peen it to pinch the cable at the desired spot... Then cut the dowel to make it a similar size to your old cable pull knob and install... I made one of these up and it lasted for 2 years..
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Old 01-12-2012, 06:35 PM   #6960
nfranco
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Joined: Jan 2006
Location: la ca
Oddometer: 763
I think somewhere in the 640 index there are part numbers for longer decomp cables?
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