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 04-22-2015, 07:06 PM   #1
sacrider OP
Adventurer
 
sacrider's Avatar
 
Joined: Jul 2008
Location: Northern Cal
Oddometer: 76
KTM LC4 engine longevity question

Hey guys and gals, I'm looking to buy a newer KTM to upgrade from my 1995 620. Ideally I'd like to get a 625 SM (I think they were made from 03-06, but not certain).

I see alot of 625s and 640s advertised with under 15k miles, but with "engine fully rebuilt 1500 miles ago".

Its my understanding that these motors are supposed to be bulletproof. I know my old 620 just keeps going and going.

Is it just the weak main bearing that is causing motors to be rebuilt with less then 20k miles, or are there more issues? I haven't asked any sellers what happened, since I'm still kinda lurking in the craiglist ads.

Is there a way to check the main bearing before buying a LC4?

Thanks!
sacrider is offline   Reply With Quote
Old 04-22-2015, 07:31 PM   #2
dnrobertson
Big Bike, Slow Rider
 
Joined: Jun 2008
Location: Frankston, Australia
Oddometer: 841
Somebody will correct me if I am wrong, but AFAIK the main bearing was only an issue on pre-03 motors.

My 2005 640 has 64,000 km on it. A top end rebuild was required at 31,500 kms but it was my own fault (stupidity).

ClintNZ and Gunnabuck (both inmates) have over 100,000 on their engines.
__________________
David

2005 KTM 640A
2008 Wee-Strom
dnrobertson is offline   Reply With Quote
Old 04-22-2015, 08:00 PM   #3
barnyard
Verbal tactician
 
barnyard's Avatar
 
Joined: Sep 2007
Location: central Mn
Oddometer: 11,268
I have 52k miles on my 05 640 Adventure. The cam follower and cam bearings were just replaced. The original owner did those at 25k also. It does not use any oil and is very easy to start.

I bought mine because it had high miles, looked to be in fantastic condition and was very inexpensive. I had to get over the feeling that with the miles, it was fragile. Looking forward to a fun summer of dual sport riding.
__________________
all around good guy
barnyard 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 02:20 AM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2015