|
6 Nov 2004
|
Registered Users
HUBB regular
|
|
Join Date: Apr 2004
Location: bristol uk
Posts: 67
|
|
decompression cable
Hi all
Just serviced the bike (55w) and found the decompression cable needs replacing. At the kickstart end, is it just a case of removing the small cover and replacing the cable, or is it more complicated? Do I need to drain the oil for instance. Also when I line up the T mark on the flywheel with the timing mark to find TDC, there is no free play in the rockers at all. When all four rockers have freeplay in them, no marks line up at all. The bike however, runs perfectly. What can this mean?
Thanks Dave
|
6 Nov 2004
|
Registered Users
HUBB regular
|
|
Join Date: Jun 2004
Location: Flagstaff, AZ
Posts: 45
|
|
Hey Bigbrummer,
If you get the "t" mark lined up with the pointer and there is no clearance at all, turn the flywheel another 360 degrees so the marks line up again and there should be some clearance. Sorry I can't help with the cable, mine is electric start only.
Good luck,
Nate
__________________
BLAME PATAGONIA
|
8 Nov 2004
|
Contributing Member
Veteran HUBBer
|
|
Join Date: Jan 2004
Location: Powys, Cymru, U.K.
Posts: 94
|
|
Hi,
Replacing your decompressor cable is very easy and should only take about 5 minutes.
Slacken off the adjuster at the top and pull the small lever up (against the valve spring pressure) to release the top part of the cable. Remove the small cover by the kickstart and release the bottom of the cable. Fit the new cable starting at the bottom and then fit at the top. Use the adjuster to provide a few mm of slack in the cable. Job done.
|
8 Nov 2004
|
Registered Users
New on the HUBB
|
|
Join Date: Aug 2000
Location: London, UK
Posts: 11
|
|
Just did this on my 55W with an experienced mate looking over my shoulder.
Put the new cable in (It's pretty obvious how it fits - I found it easier to put the bottom end in first).
To adjust - undo the right hand exhaust valve cover. Turn the engine over with the kick start until you find the point at which you can wiggle the rocker. You now know that the exhaust valve is closed. Adjust the cable so that there are a few mms (say 5mm) of play before it goes tight. Turn the engine over a few times with the kick start (should be easy now). Close the cover - job done. With the adjustment, you are just making sure that the valve is not being held open by the decompression cable hense if the valve is closed and there is a few mms of play in the cable you know that the cable is not holding the valve open. Note: you should check the adjustment of the cable every time you adjust the rockers.
Hope this helps
Muro
------------------
|
8 Nov 2004
|
Registered Users
Veteran HUBBer
|
|
Join Date: Feb 2004
Location: Toulouse, France
Posts: 216
|
|
Just take a 19 key, turn crank unclockwise until you see the "IT" sign thru hole.
Make sure decompressor has a play, otherwise turn crank one more round.
When you feel the very small play, take off cable.
Grease new cable with motor oil, put on place, make sure the play when tightened is not less than 1.5mm and not more than 2.5mm.
Not enough play = you'll burn your valve
To much play = decompression won't work properly.
With brand new cable, best play is 1.5mm
Check several times again when installed, by turning crank to IT several times, to see that the play remains the same.
Sure, decopression cable is easy to change but it can cause serious damage if not well done.
Matt
|
9 Nov 2004
|
Registered Users
HUBB regular
|
|
Join Date: Apr 2004
Location: bristol uk
Posts: 67
|
|
Thanks for your replies. Hopefully now I won't almost break my leg every time I kick it over.
Dave
|
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
HTML code is Off
|
|
|
|
Next HU Events
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. 11-15
- 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
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...
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™ 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!
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.
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.
|
|
|