
29 Dec 2007
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Join Date: Aug 2007
Location: Sax, Spain
Posts: 901
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yes, but the point i was actually trying to make patrick........
Quote:
Originally Posted by mollydog
No worries marty
Once one element is altered....well....you know!
when a punter starts fiddling with a Dyno-Jet kit on a stock bike you know he is headed for trouble.
In this area there are no half way measures if you want things to go well.
But as I said above.....A free flowing exhaust and open intake are where you have to start. So my point is....if you balance things right...you can still get decent fuel economy even on a bike with MUCH more agressive jetting because you've countered this with much more air and a freer exhaust. Now you've got the bike Yamaha wishes they could have built.
You can't really have one element without the rest. And ThIS is what i've figured out through trail and error....and really knew long ago but had forgotten.
And YES, all bikes are different....but the priciples are the same.
These motors have SO MUCH potential in them it's simply unbelievable.
I'm bypassing all this CV carb aggravation on my DR and am now going with a
FCR 39mm Keihin pumper carb off a YZ450R. A whole new world....and still decent fuel economy....even with the front wheel in the air!
Patrick 
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The point I was trying to make but got lost somewhere, I have the attention span of a.......was YES, actually, we can improve, by trial and error, done it myself, and like you took ages and pulled out too many hairs and threw a few spanners across the workshop in frustration I can tell you.
Now, IF we have access to a Rolling Road Dyno, and some jets, and a pipe or two, the whole process can be done in a day with Visible, Tangible, Printable results! PROOF!! proof for you mates down the pub that say. my XT now put out 8 Bhp more since Ichanged to K&N filter and a new shiny "akrapovik/staintune//supertrapp" exhaust and you can say...no. it doesnt. heres the proof. on paper.
and it will not have taken you a year ti find out.......
Martyn
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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...
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What others say about HU...
"This site is the BIBLE for international bike travelers." Greg, Australia
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"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
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Lots more comments here!

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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.
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