ADVrider

Go Back   ADVrider > Bikes > Thumpers
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 11-16-2013, 01:07 AM   #8356
Nokmuay
Plan B Specialist
 
Nokmuay's Avatar
 
Joined: Aug 2007
Location: South Western Ontario, Canada
Oddometer: 529
Quote:
Originally Posted by Falcon Rust View Post
talked to a mechanic a couple of weeks ago and he suggested that changing the piston, could really improve the vibrations and relax the engine. as anyone done that?
hey ya - have you done this yet and f so, did you find it improved the vibes much??
__________________
NokMuay!

Current ride is
08 CBR1000RR
05 KTM 640 Adventure R
Nokmuay is offline   Reply With Quote
Old 11-16-2013, 01:10 AM   #8357
Falcon Rust
Adventurer
 
Joined: Jun 2006
Location: Brisbane, QLD
Oddometer: 96
Quote:
Originally Posted by Nokmuay View Post
hey ya - have you done this yet and f so, did you find it improved the vibes much??
Hi, not yet, I was hoping someone had any experience with this mod. The issue is the AU$1500 the mechanic has quoted.
Falcon Rust is offline   Reply With Quote
Old 11-16-2013, 01:18 AM   #8358
dnrobertson
Big Bike, Slow Rider
 
Joined: Jun 2008
Location: Frankston, Australia
Oddometer: 738
Quote:
Originally Posted by Falcon Rust View Post
talked to a mechanic a couple of weeks ago and he suggested that changing the piston, could really improve the vibrations and relax the engine. as anyone done that?
I moved to a Wossner piston (due to a inlet cam follower bearing failure that wrecked a lot of the top end) about two years ago. 2005 640A.

Before the swap, the bike would "walk" across the garage on fast idle.

After the swap, the bike would still "walk" across the garage on fast idle, but I thought it was smoother whilst actually riding it.

Shortly after the first top end rebuild, I had an exhaust follower snap that totally destroyed the top end and required a total engine dis-assembly (coolant through motor). I believe the engine rebuild (by a very good KTM mechanic) resulted in a smoother bike than the piston alone.

So, my summary: If you need a new piston go the Wossner route, but I don't think it's worth the cost and hassle on it's own. YMMV
__________________
David

2005 KTM 640A
2008 Wee-Strom
dnrobertson is offline   Reply With Quote
Old 11-16-2013, 06:15 AM   #8359
mxchamp
Registered Lurker
 
mxchamp's Avatar
 
Joined: Mar 2005
Location: The corn state,11 curves in 318 miles (Iafalls IA)
Oddometer: 1,423
Quote:
Originally Posted by bmwktmbill View Post
Champ,
An easy way out of disconnecting is to put an on/off toggle switch on the low beam ground wire and then break the ground connection with the switch for dead battery starts.

Put the switch on the dash.

bill
That sounds easier than yanking and stuffing the connector back in every time I kill the dumb battery!

Thanks!!


Sent from my iPad using Tapatalk
__________________
Ride safe!!!!
2001 KTM 640 Adventure R
2014 KTM 690 Enduro

Encouraging Serious Horseplay!
mxchamp is offline   Reply With Quote
Old 11-16-2013, 06:17 AM   #8360
mxchamp
Registered Lurker
 
mxchamp's Avatar
 
Joined: Mar 2005
Location: The corn state,11 curves in 318 miles (Iafalls IA)
Oddometer: 1,423
Quote:
Originally Posted by dnrobertson View Post
I moved to a Wossner piston (due to a inlet cam follower bearing failure that wrecked a lot of the top end) about two years ago. 2005 640A.

Before the swap, the bike would "walk" across the garage on fast idle.

After the swap, the bike would still "walk" across the garage on fast idle, but I thought it was smoother whilst actually riding it.

Shortly after the first top end rebuild, I had an exhaust follower snap that totally destroyed the top end and required a total engine dis-assembly (coolant through motor). I believe the engine rebuild (by a very good KTM mechanic) resulted in a smoother bike than the piston alone.

So, my summary: If you need a new piston go the Wossner route, but I don't think it's worth the cost and hassle on it's own. YMMV
I just put in a stock piston and my bike doesn't walk across the floor.

Maybe it was just Doug at Motosports in Des Moines Iowa that helped when he did the rebuild. Not necessarily the piston itself.




Sent from my iPad using Tapatalk
__________________
Ride safe!!!!
2001 KTM 640 Adventure R
2014 KTM 690 Enduro

Encouraging Serious Horseplay!
mxchamp is offline   Reply With Quote
Old 11-16-2013, 05:46 PM   #8361
bmwktmbill
Traveler
 
Joined: Jul 2005
Location: Traveler
Oddometer: 4,803
Quote:
Originally Posted by mxchamp View Post
That sounds easier than yanking and stuffing the connector back in every time I kill the dumb battery!

Thanks!!


Sent from my iPad using Tapatalk
The nice thing is off road it's easy to ride with no lights and even during the day as the aux parking light still burns with the low beam off.

On a cold wet day you can run an electric vest and heated grips and the aux lite on the road.



b
__________________
'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

bmwktmbill screwed with this post 11-16-2013 at 05:57 PM
bmwktmbill is offline   Reply With Quote
Old 11-17-2013, 04:04 AM   #8362
joe cool
Studly Adventurer
 
joe cool's Avatar
 
Joined: Aug 2004
Location: southwest,ohio
Oddometer: 814
Get the Euro light switch. Got one on mine, allows you to go stealth after dark
__________________
"One more day I find myself alive
Tomorrow maybe go beneath the ground"
Garcia/Hunter
joe cool is offline   Reply With Quote
Old 11-17-2013, 10:00 AM   #8363
hajoktejnSI
Adventurer
 
hajoktejnSI's Avatar
 
Joined: Nov 2013
Location: Ljubljana Slovenia
Oddometer: 25
My temporary switch [IMG][/IMG]
Sorry for the crappy pic ...
hajoktejnSI is offline   Reply With Quote
Old 11-17-2013, 10:47 AM   #8364
mxchamp
Registered Lurker
 
mxchamp's Avatar
 
Joined: Mar 2005
Location: The corn state,11 curves in 318 miles (Iafalls IA)
Oddometer: 1,423
Quote:
Originally Posted by hajoktejnSI View Post
My temporary switch [IMG][/IMG]
Sorry for the crappy pic ...
Thanks Guys!!!

__________________
Ride safe!!!!
2001 KTM 640 Adventure R
2014 KTM 690 Enduro

Encouraging Serious Horseplay!
mxchamp is offline   Reply With Quote
Old 11-17-2013, 09:21 PM   #8365
Legs
Perma-grin
 
Joined: Oct 2012
Location: Fraser Canyon, BC, Canada
Oddometer: 4
Thumb Awsome!

[QUOTE=wrk2surf;22656153]all those shots of the bikes sitting makes me think an action shot is needed

Baja rally Oct 5-6 2013



That's an amazing shot and bike. I'd love to see more pics of the bike if you have them, and maybe some of the mods too.
Legs is offline   Reply With Quote
Old 11-18-2013, 10:13 PM   #8366
Dirtstar1
Human torpedo
 
Joined: Dec 2010
Location: Almost mexico I.B.
Oddometer: 120
How much does it weigh?

So we were having a contest at work and decided that the adventure was the topic of discussion. Most people guessed upwards of 400lbs, but if you ever rode one you'd think it's much lighter until you have to pick it up off the ground. Lol.


Photobucket Pictures, Images and Photos

On the scale full of fuel.

Photobucket Pictures, Images and Photos

Ready for adventure the 640 weighs 390 lbs. although I guessed 370 I was surprised when it didn't exceed 400lbs.
Dirtstar1 is offline   Reply With Quote
Old 11-18-2013, 10:36 PM   #8367
Lornce
Lost In Place
 
Lornce's Avatar
 
Joined: Aug 2003
Location: Way Out There.
Oddometer: 17,705
Good intel. Thanks, been curious to know.

Considering roughly 45-1/2 lbs of that is fuel, I guess the bike sans fuel weighs approx 345 lbs.

Can't tell by the photograph if you have toolbag, panniers or pannier and parcel racks on your bike.

Lornce is offline   Reply With Quote
Old 11-18-2013, 10:48 PM   #8368
Dirtstar1
Human torpedo
 
Joined: Dec 2010
Location: Almost mexico I.B.
Oddometer: 120
Quote:
Originally Posted by Lornce View Post
Good intel. Thanks, been curious to know.

Considering roughly 45-1/2 lbs of that is fuel, I guess the bike sans fuel weighs approx 345 lbs.

Can't tell by the photograph if you have toolbag, panniers or pannier and parcel racks on your bike.

That's naked bike. Only the factory tool box with a registration card. My tank bag with real tools in weighs 10lbs. I had the rxc620 before the 640 and it weighed 320 empty. Then I had the 690 smc and it was 320 full. Strangely enough I went back to the old lc4 cause it handled better, has a simple carb, and best of all kick start back up.
Dirtstar1 is offline   Reply With Quote
Old 11-18-2013, 10:55 PM   #8369
gunnerbuck
Island Hopper
 
gunnerbuck's Avatar
 
Joined: Nov 2005
Location: N.V.I, B.C.
Oddometer: 3,836
Quote:
Originally Posted by Lornce View Post
Good intel. Thanks, been curious to know.

Considering roughly 45-1/2 lbs of that is fuel, I guess the bike sans fuel weighs approx 345 lbs.

Can't tell by the photograph if you have toolbag, panniers or pannier and parcel racks on your bike.

391 with a full tank, usually manufacturers fudge those #s but KTM specs for this bike are not far off...

Up to the 2003 year they list the weight at 340 LBS without fuel...

For 2004 - 2007 they list it at 348 due to the changeover to a dual brake front end...

I shaved a further 10lbs pounds off my bike when I swapped to a lithion battery and SXC muffler...
gunnerbuck is offline   Reply With Quote
Old 11-18-2013, 11:08 PM   #8370
Lornce
Lost In Place
 
Lornce's Avatar
 
Joined: Aug 2003
Location: Way Out There.
Oddometer: 17,705
Quote:
Originally Posted by gunnerbuck View Post
391 with a full tank, usually manufacturers fudge those #s but KTM specs for this bike are not far off...

Up to the 2003 year they list the weight at 340 LBS without fuel...

For 2004 - 2007 they list it at 348 due to the changeover to a dual brake front end...

I shaved a further 10lbs pounds off my bike when I swapped to a lithion battery and SXC muffler...
Thanks, Gunnerbuck.

The successful mileage you've seen with your 640adv has prompted me to look for one of my own.

Lornce is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 08:54 AM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014