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

Honda Tech Honda Tech Forum - For Questions specific and of interest to Honda 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 17 Mar 2010
Gold Member
HUBB regular
 
Join Date: Jun 2005
Location: Weymouth, Dorset, England
Posts: 52
Honda 400 engine advice please (Honda Falcon)

Currently on a couple of Honda Falcon NX400's (Think NX650 format with XR400 engine, made in Brazil) doing a long Tour (Central America, Far east and keep heading west...) and doing a little routine and other maintenance in Los Angeles.... My Questions
Who in that area might have a lot of experience with XR400 engines...?
When I took the spark plug out of one it was very stiff and brought some alloy with it, the new one has gone in and tightened down but I wonder if I should pull the head off and helicoil the plug thread?
  • What would cause a plug to seize / damage threads. Possible overheating?
  • should I leave well alone or recut the thread/ helicoil? There is like 11 turns of the thread and perhaps/ the first 4 may be a little dodgy now, is it possible it might spit its plug out if I leave it any experience? Is There enough metal to put in an insert?
  • removing rocker cover... it is likely that I overtightened the small bolts last time I had it apart. If I encounter damaged threads is there enough metal to helicoil these..... any experience
  • How long do these engines last ( big ends etc) they have been regularly serviced. Fed oil, had timing chains replaced. Are not obviously using oil between services..... have now done 56000km (35000 miles) any experience?
Any advice would be very gratefully received.....
Sheonagh (and Pat) aka 'Dusty old bags'
PS anyone got a spare crate near here ?
Reply With Quote
  #2  
Old 12 Feb 2013
Registered Users
New on the HUBB
 
Join Date: Feb 2013
Posts: 3
I am interested in buying a used Falcon 2008 with 26,000 km on it, here in Costa Rica. Everything here costs twice as much as anywhere else so it will cost almost $7000 after I pay it off with interest, my question is: is this bike something that is worth investing in can be worked on and kept like new over the long haul.Anyone have any input? My other alternatives are to buy a much older bike, or a much cheaper chinese 400, or pay a lot more for a newer one.
Reply With Quote
  #3  
Old 12 Feb 2013
Registered Users
Veteran HUBBer
 
Join Date: Feb 2002
Location: Back home in the UK
Posts: 866
Hi Sheonagh,
Spark plug thread excepted I hope all is well with Pat and yourself and that your trip is going well.
Your problem may have been caused by not copper based greasing the thread before screwing the plug in, use a small amount each time it goes in to avoid this. Depending on how much metal came out with the plug it might be alright until the next time it comes out but it would be wise to get it helicoiled at a convenient point along with the rocker cover threads, it should be no problem for a competant mechanic or engineer to do this.
With the regular mentainance and use it is getting I would have thought your engine should go on for 80-100,000 miles so plenty of life left yet.
Mark
__________________
If gaffer tape doesn't fix it then you haven't used enough tape
Reply With Quote
  #4  
Old 12 Feb 2013
Contributing Member
Veteran HUBBer
 
Join Date: Apr 2003
Location: Gloucester, England
Posts: 431
Quote:
Originally Posted by mark manley
Hi Sheonagh....................Mark
Excellent advice Mark, if a tiny tad late.

Regards, Mick
Reply With Quote
  #5  
Old 12 Feb 2013
Registered Users
Veteran HUBBer
 
Join Date: Feb 2002
Location: Back home in the UK
Posts: 866
Quote:
Originally Posted by Mick O'Malley View Post
Excellent advice Mark, if a tiny tad late.

Regards, Mick
Oops! I have actually seen them since then
__________________
If gaffer tape doesn't fix it then you haven't used enough tape
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 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
Honda Nx 400 Falcon Information untocque Honda Tech 32 17 Mar 2013 02:18
FS:2007 Honda NX 400 Falcon in Western S. Am glasswave TRAVEL Bikes for Sale / Wanted 4 23 Jul 2009 23:10
help needed / Honda NX4 FALCON 400 ginabun Honda Tech 1 3 Apr 2008 22:43
NX4 Falcon Honda niels Which Bike? 10 21 Dec 2006 17:15
Honda NX4 Falcon? niels Honda Tech 0 9 Aug 2005 02:26

 
 


HU DVD Summer Special!

Now that summer is here, get On the Road! Take 30% off the Achievable Dream - On the Road! 2-DVD set until August 31 only. Get On the Road! Learn the tips to staying healthy, happy and secure on your motorcycle adventure!

Our veteran travellers share their tips (and great stories) for staying healthy, happy and secure on your motorcycle adventure.

"A fantastic, informative and inspirational DVD."

"It's brilliant - thank you very much!"

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


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 17:04.