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Posted by Wayne on January 30, 2008, 2:59 pm
> Honda Shadow VT600. Inexpensive bike, ordinary carb.
>
> Last night, temp got to 40 (Michigan) and I took it on the freeway to make
> sure the battery is charged before parking it again.
>
> I notice with the motorcycle in general that once I have a high throttle
> setting and particularly if I'm accelerating I need to back down on the
> throttle a LOT before the bike starts to slow.
>
> It may be that the speed of the bike hasn't caught up to the previous
> throttle setting, so may be kind of an "illusion" how much I need to back
> off.
>
> Are motorcycle carbs structurally different than automobile carbs in a way
> that has "inertia" (resistance to change in setting)?
>
> Maybe I've lost touch, because my last two vehicles (F-150, Ranger) have
> been fuel-injected. Maybe all carb engines are that way.
>
> P.S.--I have no evidence of throttle cable problems. I think everthing is
> fine there mechanically.
>
> --
> David T. Ashley (dta@e3ft.com)
> http://www.e3ft.com (Consulting Home Page)
> http://www.dtashley.com (Personal Home Page)
> http://gpl.e3ft.com (GPL Publications and Projects)
>
I once had a bare bones bike with no windshield and I loved the constant
wind force on my face. However, every time a truck past I got hit with a lot
of small bits that blew off the road. Also the bugs can hurt. So, I started
looking for a windshield. I tried several and I tried different angles. They
all caused buffetting enough to give me a headache. I then tried deflectors
attached to my forks and I found they helped some. I even got some plastic
and tried to make diferent sizes and shapes.
I was never satisfied. I then bought a Goldwing and the shield was high
enough that I had to look through it. There was still buffetting but because
of the fairing and the shield size, the buffetting was tolerable. I found
that the view is really bad if you are looking into the sun at sundown. You
can't see at all. Raising my head enough to just se over the top doesn't
seem to make the buffetting much worse.
I have been told that the bikes that have a shield that is raised away from
the bike so some air flows under the sheild as well as over it tends to
reduce buffetting. Apparently the under sheild flow is tuned to reduce the
turbulance at the top because the waves are out of phase. I don't know if
this true as all the bikes with this type of shield seem to be low enough to
see over it.
The BMW tourer and the FJR1300 both have this type of shield and they are
adjustable. I
d sure like to know if anyone has this type of shield and how well they
work.
Wayne Jones
86 Venture
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