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 
|
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
|