Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > KTM Tech

KTM Tech KTM Tech Forum - For Questions specific and of interest to KTM riders only. Questions comparing which bike is best etc go in the "Which Bike" forum.
Contact Overland Solutions for all your custom modifications and setup for overland travel.

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 26 Jan 2012
Registered Users
HUBB regular
 
Join Date: Dec 2011
Location: scotland
Posts: 26
ktm 640 adventure

Hi all has anyone fitted the ktm 660 supermoto engine into a 640 and if so what did they need to make the change .I know i will lose the electric start but thinking it maybe worth the extra power

cheers

Dave
Attached Thumbnails
ktm 640 adventure-ktm-adv.jpg  

Reply With Quote
  #2  
Old 27 Jan 2012
Jerome's Avatar
Gold Member
Veteran HUBBer
 
Join Date: Dec 2001
Location: London
Posts: 181
Hi,

Nice bike, but why do you want more power?

More power = less reliability and the parts for the 660 engines will be harder to get and probably more expensive. The parts for the racing 660's are incredibly expensive.

I got my standard 640 engine rebuilt and balanced by Swampy when it was new so it was as smooth, economical and as powerful - with the standard carb - as possible.
__________________
Jerome

fowb.co.uk
Reply With Quote
  #3  
Old 27 Jan 2012
Registered Users
Veteran HUBBer
 
Join Date: Jan 2008
Location: St Louis, MO
Posts: 124
Quote:
Originally Posted by bianchi View Post
Hi all has anyone fitted the ktm 660 supermoto engine into a 640 and if so what did they need to make the change .I know i will lose the electric start but thinking it maybe worth the extra power

cheers

Dave
That electric starter may just save your butt someday. It'll come in handy, if you have to have both feet firmly planted on the ground.

daryl
Reply With Quote
  #4  
Old 5 Feb 2012
Registered Users
New on the HUBB
 
Join Date: Feb 2012
Location: NC, USA
Posts: 7
Quote:
Originally Posted by bianchi View Post
Hi all has anyone fitted the ktm 660 supermoto engine into a 640 and if so what did they need to make the change .I know i will lose the electric start but thinking it maybe worth the extra power

cheers

Dave


This is an exercise in wasted time.

You won't gain enough power to make the expense and hassle worthwhile,
and you will lose reliability.

There is no need for more power except when on paved roads, because the power the stock bike has is sufficient for any off road conditions.

Bottom line : if you want more power, you should buy a 950 Super Enduro. But unless you have superhuman strength and world-class riding ability you can forget about doing any serious off road with that bike.
Reply With Quote
  #5  
Old 6 Feb 2012
Registered Users
HUBB regular
 
Join Date: Dec 2011
Location: scotland
Posts: 26
Thanks for the replies it was just a thought just encase i was going to do a engine change in the future ..

thanks

Dave
Reply With Quote
  #6  
Old 26 Sep 2012
Registered Users
New on the HUBB
 
Join Date: Sep 2012
Posts: 1
Hi you can quite easily change your 640 which is really a 620 to a true 660cc with a crank and barrel and that way keep your electric start, the 660 bore and stroke equates to a smoother engine as well so less vibes and a lot more torque, the problem with the 660 SMR engine is the high compression that could cause problems with crap fuel in remote areas and the first two gearbox ratio's are higher than the std LC4 engine so you dont have the std crawler 1st gear to get you out of trouble in tight going.
I know this because i have a 660 factory motard that i raided the engine out of to put in an old 620 frame i could register with an adventure tank for a trip i decided to do at the last minute and the original 620 engine rebuild was'nt near ready.
Basically what you get with the 660 is more power but usfully more torque a load more torque.
Your other option is to install a 660 cam with the matching valve spring kit with an FCR carb this will give you additional ponies with good reliability at a more affordable price.
Hope this helps i know this post maybe old, ive just joined after seeing your post but couldn't help commenting, your on the right track the 660 is not a big bore kit for the LC4 motor the older LC4 rally bikes run a 690 or 710 kit that is still reliable it just comes down to cost as always, one point i found getting on and off your bike just to kick start it everytime because you stop to take in the view a pee a quick chat "where the hell are we" etc soon becomes a pain when your bike weighs a ton, stick with the button at least that weight is down low. cheers
Deeds
Reply With Quote
  #7  
Old 27 Sep 2012
Registered Users
HUBB regular
 
Join Date: Dec 2011
Location: scotland
Posts: 26
Yeh thanks for that some interesting stuff
I do like the idea of 660 top end with barrel
Pistons and camshaft with the fcr carb

I will keep an eye open for any of that stuff on
eBay . Thanks for your help

Cheers

Dave
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 3 (0 Registered Users and/or Members and 3 guests)
 
Thread Tools
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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
KTM dealer in Morocco CaBRita Morocco 6 21 Oct 2013 10:48
Adventure Travel Film Festival Australia - Bright Vic 24-26 Feb 2012 Adventure Travel Film Festival Australia HU Travellers Meetings - Australia 23 28 Nov 2012 06:04
KTM 990 for sale Steppenwolf 990 TRAVEL Bikes for Sale / Wanted 7 25 Nov 2012 21:04
DR650 SE or KTM Adventure? Zimi Which Bike? 31 16 Feb 2012 19:07
KTM 640 Adv WANTED England Donny TRAVEL Bikes for Sale / Wanted 1 23 Jan 2012 15:42

 
 
 

NEW! HU 2015 Motorcycle Adventure Travel Calendar is now available! Get your copy now for some terrific travel inspiration!

HUGE, 11.5 x 16.5 inches, beautifully printed in Germany on top quality stock! Photos are the winning images from over 600 entries in the 9th Annual HU Photo Contest!

Horizons Unlimited 2015 Motorcycle Adventure Travel Calendar.

"The calendar is magnificent!"

"I just wanted to say how much I'm loving the new, larger calendar!"

We share the profit with the winning photographers. YOU could be in the HU Calendar too - enter here!

Next HU Eventscalendar

See all events

 

HU DVD Autumn Special!

Take 40% off Road Heroes Part 1 until October 31 only!

Road Heroes features tales of adventure, joy and sheer terror by veteran travellers Peter and Kay Forwood (193 countries two-up on a Harley); Dr. Greg Frazier (5 times RTW); Tiffany Coates (RTW solo female); and Rene Cormier (University of Gravel Roads).

The first in an exciting new series, Road Heroes features tales of adventure, joy and sheer terror by veteran travellers."Inspiring and hilarious!"

"I loved watching this DVD!"

"Lots of amazing stories and even more amazing photographs, it's great fun and very inspirational."

"Wonderful entertainment!"

Check it out at the HU Store! Remember to use Coupon Code 'HEROES' on your order when you checkout.



Scottoiler automatic chain oilers. The most important accessory for your next motorcycle adventure!


Renedian Adventures


Renedian Adventures

What others say about HU...

"I just wanted to say thanks for doing this and sharing so much with the rest of us." Dave, USA

"Your website is a mecca of valuable information and the DVD series is informative, entertaining, and inspiring! The new look of the website is very impressive, updated and catchy. Thank you so very much!" Jennifer, Canada

"...Great site. Keep up the good work." Murray and Carmen, Australia

"We just finished a 7 month 22,000+ mile scouting trip from Alaska to the bottom of Chile and I can't tell you how many times we referred to your site for help. From how to adjust your valves, to where to stay in the back country of Peru. Horizons Unlimited was a key player in our success. Motorcycle enthusiasts from around the world are in debt to your services." Alaska Riders

contest pic

10th Annual HU Travellers Photo Contest is on now! This is an opportunity for YOU to show us your best photos and win prizes!

NEW! HU 2014 Adventure Travel T-shirts! are now available in several colors! Be the first kid on your block to have them! New lower prices on synths!

HU 2014 T-shirts now in!

Check out the new Gildan Performance cotton-feel t-shirt - 100% poly, feels like soft cotton!


What turns you on to motorcycle travel?


Global Rescue, WORLDwide evacuation services for EVERYONE

Global Rescue is the premier provider of medical, security and evacuation services worldwide and is the only company that will come to you, wherever you are, and evacuate you to your home hospital of choice. Additionally, Global Rescue places no restrictions on country of citizenship - all nationalities are eligible to sign-up!


New to Horizons Unlimited?

New to motorcycle travelling? New to the HU site? Confused? Too many options? It's really very simple - just 4 easy steps!

Horizons Unlimited was founded in 1997 by Grant and Susan Johnson following their journey around the world on a BMW R80 G/S motorcycle.

Susan and Grant Johnson Read more about Grant & Susan's story

Membership - help keep us going!

Horizons Unlimited is not a big multi-national company, just two people who love motorcycle travel and have grown what started as a hobby in 1997 into a full time job (usually 8-10 hours per day and 7 days a week) and a labour of love. To keep it going and a roof over our heads, we run events (22 this year!); we sell inspirational and informative DVDs; we have a few selected advertisers; and we make a small amount from memberships.

You don't have to be a Member to come to an HU meeting, access the website, the HUBB or to receive the e-zine. What you get for your membership contribution is our sincere gratitude, good karma and knowing that you're helping to keep the motorcycle travel dream alive. Contributing Members and Gold Members do get additional features on the HUBB. Here's a list of all the Member benefits on the HUBB.


Books & DVDs

amazon

All the best travel books and videos listed and often reviewed on HU's famous Books page. Check it out and get great travel books from all over the world.


Motorcycle Express for shipping and insurance!

Motorcycle Express

MC Air Shipping, (uncrated) USA / Canada / Europe and other areas. Be sure to say "Horizons Unlimited" to get your $25 discount on Shipping!
Insurance - see: For foreigners traveling in US and Canada and for Americans and Canadians traveling in other countries, then mail it to MC Express and get your HU $15 discount!




All times are GMT +1. The time now is 01:14.