|
29 May 2012
|
Registered Users
Veteran HUBBer
|
|
Join Date: Dec 2009
Location: Birmingham, UK
Posts: 126
|
|
YDIS Carbs - How do they work?
Can anyone explain how the YDIS system works for me please?
I have a problem with the following http://www.horizonsunlimited.com/hub...leration-62808
It cuts out all of a sudden under full throttle and under acceleration, and once the revs drop back it cuts back in again. It's like you've hit the kill switch, let it loose speed, then hit it again to bring the engine back to life.
I'm fairly happy having done some work on the bike that it's not electrical, the bike will cruise at 90mph, so long as I take my time on part throttle getting there - no hard acceleration. I think it's fuel starvation.
Once the secondary SU carb opens - is this the only carb feeding in fuel? (hence a problem with it will cut the engine). Once the revs drop, would it switch back to the primary carb (hence the engine cutting back in)?
If I understand how this thing works, I have a better chance of figuring out what the problem is
Thanks
|
31 May 2012
|
|
Registered Users
Veteran HUBBer
|
|
Join Date: Oct 2008
Location: West Wales, UK
Posts: 753
|
|
I think you are right in saying that it is fuel starvation, and that's where I would start looking. Pull the fuel line off the tank, check you have a good flow out of the petcock, and then take it from there. Sounds like you will need to remove the carb and dismantle - a fiddly job, but not difficult. I'm guessing there will be a blockage in there somewhere. Main jet in the RHS carb would be the obvious candidate.
If the carb checks out OK, I would run a full check on valve clearances, compression etc before going any further. Also check the carbs are synced correctly. A search on this site will bring up the details.
|
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. 11-14
- 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
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.
|
|
|