Sam, I would agree that to leave the needles alone if the bike is running
well. If you want a bit more power then open up the airbox a bit more and
adjust the fuel curve accordingly. I have my airbox open a bit more than you
plus I drive in very cool air hence my shimmed needles. However between you
and me, I will be checking my mileage very closely and may close things back
up before I go on an extended trip this summer. I need mileage more than
brute power to get down the Alaska highway...
cheers, Terry
-----Original Message-----
From: TC <[EMAIL PROTECTED]>
>Sam,
>If you ran too rich with shims under the needles then I would avoid
>the factory needles as well. While the slides will pop fully open when
>going WOT ... it is only for an instant ... and then depend on air
>velocity to determine how far they will actually remain open.
>
>I think Paul has a modified "Factory" CV tuning guide on the list web
>site, (it is also on the "Factory" web site with other fuel / ignition
>advance articles etc ), and it does a pretty good job of explaining
>this ... (great reference material) ....
>
>Check out the sections in that guide :
>- Top end (full throttle / 7.5k to redline - Best Main Jet Selection
>- Midrange (full throttle /5k-7k) - Select best needle clip position
>
>Intake restriction is the biggie ... I don't think Jerry is runny a
>"Y" on his airbox at all ... and you have to get more air in there ...
>so that you can add more fuel to burn it up ...
>campbell
>
>----- Original Message -----
>From: C.O.M.E. Racing <[EMAIL PROTECTED]>
>Subject: Re: V-Max main jet or needle change.
>
>
>> snip <
>> I fitted the 155 jets today and I can't really tell any
>> difference, seat of the pants. The bike runs great
>> everywhere with plenty of response and doesn't sign off early.
>> snip <
>
>
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