Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > Yamaha Tech
Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
Photo by Hendi Kaf, in Cambodia

I haven't been everywhere...
but it's on my list!


Photo by Hendi Kaf,
in Cambodia



Reply
 
LinkBack Thread Tools Display Modes
  #16  
Old 25 Aug 2013
xtrock's Avatar
Registered Users
Veteran HUBBer
 
Join Date: May 2013
Location: Norway
Posts: 1,371
I have only tried 14 in front and a didnt like it at all..
Reply With Quote
  #17  
Old 27 Aug 2013
Registered Users
HUBB regular
 
Join Date: Nov 2008
Location: Cardiff
Posts: 71
Quote:
Originally Posted by jjrider View Post
Yes drop those rpms, if it can pull it. 500rpms x 60 = 30,000 revolutions that motor didn't have to turn, over time that will really, really add up to less wear. Tire choice and air pressure also will have effect on what gearing you can run. If no real offroading is going to be done, a highway tire will have considerably lees rolling resistance.
Yes was thinking of changing tyres, may get some siracs or one of the cats paw style tyres like Heidenau as I like those.
Reply With Quote
  #18  
Old 28 Aug 2013
bacardi23's Avatar
Registered Users
Veteran HUBBer
 
Join Date: Sep 2007
Location: XXX<-Portugal->Azores->Santa Maria (island)
Posts: 1,544
tires? I'm looking at the new Continental TrailAttack 2! I've done 7k HARD kms on my TrailAttacks and they still hold like glue to the road!
Reply With Quote
  #19  
Old 29 Aug 2013
Registered Users
HUBB regular
 
Join Date: Nov 2008
Location: Cardiff
Posts: 71
Just ordered a 43 rear from wemoto apparently its listed for a 660 xtz. Lets hope it fits as I've got a 280 mile road ride next week Ha

Sent from my GT-I9100 using Tapatalk 2
Reply With Quote
  #20  
Old 29 Aug 2013
xtrock's Avatar
Registered Users
Veteran HUBBer
 
Join Date: May 2013
Location: Norway
Posts: 1,371
Why you going down? 45/15=3 43/15=2,86 iam thinking that you lose torque and maybe get a little more high speed? Jens have 47/16 = 2,94 and i would think you can feel any difference to 45/15? When i changed to 45/14=3,21 i got more torque but i didnt like the gearing in the beginning, 1 and 2 gear was to short.
Reply With Quote
  #21  
Old 29 Aug 2013
Registered Users
Veteran HUBBer
 
Join Date: Sep 2012
Location: Middle USA
Posts: 349
Rear Sprocket

My 86 had a 15 42 stock. That is a good ratio for street only, but a little too tall for trail work in the mountains. Early on I went with a 14 42 which is a 1 to 3 ratio and works great!. I just replaced both sprockets and chain with a new xring chain with 15 stock and 45 sunstar which is of course 1 to 3. I like that ratio as I either am running around town or in the mountains. I like the larger sizes as the chain has to "bend" around a larger radius and should last longer.
Reply With Quote
  #22  
Old 29 Aug 2013
Registered Users
HUBB regular
 
Join Date: Nov 2008
Location: Cardiff
Posts: 71
I can only go on the changes I used to make on my xr400, which was similar to where I am now. Yesterday I went to Worcester from Cardiff so I chose to go M4m5 and 65/70mph was up to 4500 rpm and it was ok. 70 is a nice speed for this for my own personal views. If by dropping a couple of teeth on the rear just drops it closer to 4k rpm or a tad above I will feel the bike will thrum along just fine. I have got to buy new chain and sprocket anyway as they are fubar so I may as well try something different

Sent from my GT-I9100 using Tapatalk 2
Reply With Quote
  #23  
Old 29 Aug 2013
Registered Users
Veteran HUBBer
 
Join Date: Dec 2008
Location: Denmark
Posts: 1,417
xtz660 front and rear sprockets is the same as xt600e, so yeah, they fit.

The earlier xt600 models from the 80's-ish had different internal gearing, so remember that when we try to compare. Also, different size reartires can easely alter the "gearing".

You dont cant gain torque by changing the gearing, you cant force the bike to gain more power like that. But you will have more torque avalible at the same rpm, with a "shorter" gearing, compared to a "longer" (14/45 compared to fx 16/45)
Reply With Quote
  #24  
Old 30 Aug 2013
xtrock's Avatar
Registered Users
Veteran HUBBer
 
Join Date: May 2013
Location: Norway
Posts: 1,371
Yes i didnt write that correct, bike dont get more torque but you change the way of using the bikes torque. But why use 16/47 when its so close to the original?
Reply With Quote
  #25  
Old 30 Aug 2013
Registered Users
Veteran HUBBer
 
Join Date: Dec 2008
Location: Denmark
Posts: 1,417
Because I think thats best for me, so thats what I order when I buy new chainkits. Also, the bigger sprockets should give sligthly less wear.

I have 2 sets of front and rear wheels, and sprocets: 13, 14, 15, 16, 42, 45, 46 and 47. I use the bike for a lot of different stuff, and have played around a lot with sprockes to find what suits me best, for various situations.

I've made a new cover for the CS sprocket, and have a list on my phone where the snailadjuster have to me with the different sprockets, to give a correct chainslack. That meas I can change the CS sprocket in just about 5minutes.

Going from 16/47 to 14/47 really changes the bike. That combined with 2 sets of wheels, one for tarmac, and one for offroad, you can make it a completely different bike in around 20-30minutes.

Oeh, sorry, got carried away. Hope it explains it
Reply With Quote
  #26  
Old 2 Sep 2013
Registered Users
HUBB regular
 
Join Date: Nov 2008
Location: Cardiff
Posts: 71
Well Ive had new chain and sprockets fitted. I already had a sunstar 15t in my garage that I never put on my old 660Tenere and I bought a 43t JT sprocket from wemoto. I couldn't undo the front sprocket nut so I took it down my local shop and had him do it for 20 quid and I bought a JT X ring chain from him anyway for £44.
What I never knew.... because I never looked was I was running a 14t front and a 45t rear. I rekoned I must have been standard gearing as the performance of the bike seemed to be as Id had read about i.e about a 65 mph cruising speed at about 4k rpm.
however now on a 15t/43 combo its been transformed on the road, nice spread between gears and now at 70 mph its at 4k rpm. even with a tom tom gps on at 70 the gps is showing 68mph.
Putting that into perspective for me. My 09 Tenere 660 that I sold as I was skint!! Felt pretty quick and cruised on the motorways at 75/80 mph but the electronic speedos on these are known to be 10% over !!!
So the old 600 XT is producing the goods for me so far
Reply With Quote
  #27  
Old 2 Sep 2013
bacardi23's Avatar
Registered Users
Veteran HUBBer
 
Join Date: Sep 2007
Location: XXX<-Portugal->Azores->Santa Maria (island)
Posts: 1,544
20quid to undo the front sprocket nut? that's crazy!
you can almost buy an air impact wrench and do it yourself for that price!

anyway, at least you got it sorted!
Safe driving!
Reply With Quote
  #28  
Old 2 Sep 2013
Registered Users
HUBB regular
 
Join Date: Nov 2008
Location: Cardiff
Posts: 71
Ha no I tried to undo that first and then got him to do the lot for 20 quid.

Sent from my GT-I9100 using Tapatalk 2
Reply With Quote
  #29  
Old 3 Sep 2013
Registered Users
HUBB regular
 
Join Date: Nov 2008
Location: Cardiff
Posts: 71
One thing I did forget to add, which may be good for others for future reference is the sprocket is a JT-857-43. Listed for a MZ Mastiff, Xt600ZE,XV250 and XTZ660 89-96
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 guests)
 

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
Advice needed in Mongolia: Transalp output shaft/ sprocket/ retainer problem, Urgent chris Honda Tech 19 20 Mar 2015 20:37
1998 xt600e rear brake caliper pls xtme Yamaha Tech 9 28 Jun 2013 11:59
XT600e rear brake caliper rudderforth Yamaha Tech 7 25 Jun 2013 20:31
Rear caliper dust seal xt600e `03model awolxt Yamaha Tech 10 13 Jun 2013 21:44
XT600E/4PT: RFI - max.rear sprocket size with 14T front sprocket and standard chain Bigfoot 2 Yamaha Tech 8 26 Jun 2012 15:07

 
 

Announcements

Thinking about traveling? Not sure about the whole thing? Watch the HU Achievable Dream Video Trailers and then get ALL the information you need to get inspired and learn how to travel anywhere in the world!

Have YOU ever wondered who has ridden around the world? We did too - and now here's the list of Circumnavigators!
Check it out now
, and add your information if we didn't find you.

Next HU Eventscalendar

25 years of HU Events
Be sure to join us for this huge milestone!

ALL Dates subject to change.

2025 Confirmed Events:

Virginia: April 24-27 2025
Queensland is back! May 2-4 2025
Germany Summer: May 29-June 1 2025
CanWest: July 10-13 2025
Switzerland: Date TBC
Ecuador: Date TBC
Romania: Date TBC
Austria: Sept. 11-14
California: September 18-21
France: September 19-21 2025
Germany Autumn: Oct 30-Nov 2 2025

Add yourself to the Updates List for each event!

Questions about an event? Ask here

See all event details

 
World's most listened to Adventure Motorbike Show!
Check the RAW segments; Grant, your HU host is on every month!
Episodes below to listen to while you, err, pretend to do something or other...

Adventurous Bikers – We've got all your Hygiene & Protection needs SORTED! Powdered Hair & Body Wash, Moisturising Cream Insect Repellent, and Moisturising Cream Sunscreen SPF50. ESSENTIAL | CONVENIENT | FUNCTIONAL.

2020 Edition of Chris Scott's Adventure Motorcycling Handbook.

2020 Edition of Chris Scott's Adventure Motorcycling Handbook.

"Ultimate global guide for red-blooded bikers planning overseas exploration. Covers choice & preparation of best bike, shipping overseas, baggage design, riding techniques, travel health, visas, documentation, safety and useful addresses." Recommended. (Grant)



Ripcord Rescue Travel Insurance.

Ripcord Rescue Travel Insurance™ combines into a single integrated program the best evacuation and rescue with the premier travel insurance coverages designed for adventurers.

Led by special operations veterans, Stanford Medicine affiliated physicians, paramedics and other travel experts, Ripcord is perfect for adventure seekers, climbers, skiers, sports enthusiasts, hunters, international travelers, humanitarian efforts, expeditions and more.

Ripcord travel protection is now available for ALL nationalities, and travel is covered on motorcycles of all sizes!


 

What others say about HU...

"This site is the BIBLE for international bike travelers." Greg, Australia

"Thank you! The web site, The travels, The insight, The inspiration, Everything, just thanks." Colin, UK

"My friend and I are planning a trip from Singapore to England... We found (the HU) site invaluable as an aid to planning and have based a lot of our purchases (bikes, riding gear, etc.) on what we have learned from this site." Phil, Australia

"I for one always had an adventurous spirit, but you and Susan lit the fire for my trip and I'll be forever grateful for what you two do to inspire others to just do it." Brent, USA

"Your website is a mecca of valuable information and the (video) series is informative, entertaining, and inspiring!" Jennifer, Canada

"Your worldwide organisation and events are the Go To places to for all serious touring and aspiring touring bikers." Trevor, South Africa

"This is the answer to all my questions." Haydn, Australia

"Keep going the excellent work you are doing for Horizons Unlimited - I love it!" Thomas, Germany

Lots more comments here!



Five books by Graham Field!

Diaries of a compulsive traveller
by Graham Field
Book, eBook, Audiobook

"A compelling, honest, inspiring and entertaining writing style with a built-in feel-good factor" Get them NOW from the authors' website and Amazon.com, Amazon.ca, Amazon.co.uk.



Back Road Map Books and Backroad GPS Maps for all of Canada - a must have!

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 R80G/S.

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 all over the world with the help of volunteers; 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, or ask questions on the HUBB. 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.




All times are GMT +1. The time now is 12:55.