Gaza
Any one fitted a non genuine windscreen to scout what make how much
are they worth fitting
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Roundy
I have a National Cycles Spartan screen on my Scout - and it is a quick releaase model. Purchased online from Cuiser Customising. Works well !l
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Dr.Shifty
Gaza wrote:
Thanks chiefy i will check them out the indian screens were up around $690


Yep, I ordered the tall screen with the bike and it cost $620. Not a good screen and not a good decision.
Cheers, Kim.

From Woodrising (no, nobody else has heard of it either)
Rides a Springfield Dark Horse
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V-Twin
Dr.Shifty wrote:
I ordered the tall screen with the bike and it cost $620. Not a good screen and not a good decision.
Hey Dr, can you tell us a bit more about why Indian Scout screens are 'not a good screen'?
Let's be kind to one another.
Melbourne, Victoria
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Dr.Shifty
The tall screen, although curved in both directions, has the aerodynamics of a wall.

The air coming over the top is very confused and buffets badly at head level. It comes downwards inside the screen, over the tank, and up my chest. As the speed builds, and if I'm wearing my light summer jacket, I can feel it pull the shoulders of my jacket upwards. One day while riding at speed and with a side wind it was pulling my magnetic tank bag off the tank.

I've stuck telltales to the screen, inside and out, and confirmed that there is no place with good airflow. The top ones went downwards. The side ones pointed to the middle or flapped around in a circle.

I have ridden in rain with DarkScout and the rain stayed almost motionless on the front of the screen. This means it's holding a pillow of still air in front like one of those early air-dams people used in the 70s/80s. At the same time, any water that came over the screen traveled very slowly downwards. The optimum for water flow is smoothly flowing up and outwards on the front and upwards on the inside.

The next day we swapped my tall screen for DarkScout's mid screen from his old Scout. There was no rain to check flow etc but the head buffeting was reduced. However, the high speed air hitting my helmet caused ringing in my ears for half an hour after stopping.

Since then I've experimented with altering the flow inside the screen. I cut a piece of light cardboard to put inside the screen. It sat around the headlight cone and ran inside the screen between the screen brackets, about 8 inches high and an inch or so of clear space behind the screen. This took the air from around the headlight and directed it upwards. This made a significant difference with less buffeting. I stuck new telltales inside the screen and they showed upward movement.

Then I bought a closable screen vent from a Goldwing, you can see them all over ebay. They have slots along the top for moving air upwards, and another vent to open to direct more air to the rider. That looked good but when it arrived a week ago I realized it means cutting the screen the full width between the brackets and I'm thinking that might be a bit too much meat to remove. I'd checked one out on a Goldwing but not measured it.

So now I'm considering three options on venting.
1. Just cut a vent in the screen and leave it to do something. There is a US screen maker who makes screens like this.
2. Make up a clear plastic deflector like the cardboard experiment.
3. Get a narrower vent with deflector inside and fit that. I've come across one but it's $100 shipped to here.

I used the screen for a recent 12 day tour but took it off when I got home. It's currently taking up space on the dining table while I make up my mind.

And to top it off, I like the look of the new Indian swoopy mini screen and am tossing up whether to throw some more money away. [smile]
Cheers, Kim.

From Woodrising (no, nobody else has heard of it either)
Rides a Springfield Dark Horse
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Dr.Shifty
This is the vent kit I'm considering.
http://rifle.com/Motorcycle-WIndshields/Accessories/Air-Balance-Windshield-Vent-Kit.aspx
Cheers, Kim.

From Woodrising (no, nobody else has heard of it either)
Rides a Springfield Dark Horse
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Dr.Shifty
And the new Indian fly screen.

Scout-screen.jpg
Cheers, Kim.

From Woodrising (no, nobody else has heard of it either)
Rides a Springfield Dark Horse
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V-Twin
Great analysis and write up Dr. I particularly was impressed with the use of telltales and cardboard prototype!! Let us know what you end up doing.
Let's be kind to one another.
Melbourne, Victoria
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Gaza
You done some work Dr
i will wait for your next post before i do anything
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Dr.Shifty
Another experiment I am thinking of is to put little fins (vortex generators) on the front of the screen. The fins come from light aeroplanes and sit along the front half of the wing upper surface. They direct air flow and are used on outback planes that focus on short take off and landing - STOL is the term.

See here. http://www.stolspeed.com/id/3 There's some interesting reading on this guy's site if you are interested in aircraft.

I'm still waiting for him to get back to me about buying some.
Cheers, Kim.

From Woodrising (no, nobody else has heard of it either)
Rides a Springfield Dark Horse
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Dr.Shifty
Update.
One of the problems I forgot to mention is how the tall screen makes the bike dance and bob around. To simulate it, sit on the bike and make it upright and off the sidestand. Rock the bike sideways about an inch or two, side to side, but don't turn the handlebars off centre. When the bike is moving the tall screen makes it rock like this. It's not unsettling, as in won't tip you off, but it's a little disconcerting if you are not expecting it.

Cheers, Kim.

From Woodrising (no, nobody else has heard of it either)
Rides a Springfield Dark Horse
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Dr.Shifty
I've thought through the vent thing, and have decided to cut the Goldwing vent so it fits. In the pic you can see the lines I've marked out. The middle bit goes and the outer parts glue together. This will take it from about 24.5 cm full width to about 18.5 cm. The width between the mounting brackets is about 22.5 cm.

It should cut and glue fairly easily. Then it's a matter of cutting the screen to fit it.
The blocky part on the right is the control handle for the inner door. The air comes in the front and upwards through the slots. Open the door and the air comes to the rider.


Screen Vent 01.jpg
Cheers, Kim.

From Woodrising (no, nobody else has heard of it either)
Rides a Springfield Dark Horse
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V-Twin
Dr.Shifty wrote:
I am thinking of is to put little fins (vortex generators) on the front of the screen.
I want to fit a Flux Capacitor to my Indian but I seem to be having trouble acquiring one... I don't support you know Dr Emmett Brown?    [biggrin]

Joking aside, you are doing some serious home work here.  Thanks for sharing.  There is a reason why I pulled my windshield off as soon as I picked up my Vintage.  I sold the screen to DarkScout and he fitted it to his Darkhorse but he was not a big fan of one either... maybe a smaller screen is the answer but everything you are talking about for Scout might be worth taking notes.
Let's be kind to one another.
Melbourne, Victoria
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Dr.Shifty
I've now heard back from the vortex generator guy. He says several people have tried them on bike screens, some work and some don't. It's about getting the right placement on a screen where they can make a difference.

I've also cut the vent. The next thing is to gently sand the parts so they join up as close to perfect as I can manage before gluing. It's a tricky business cutting them at the same angle for all cuts.

I don't have links to a flux capacitor, but this blue phone box thing keeps appearing in the back yard. I've got to find who keeps dumping it there and tell him to piss off.
Cheers, Kim.

From Woodrising (no, nobody else has heard of it either)
Rides a Springfield Dark Horse
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V-Twin
Dr.Shifty wrote:
I've also cut the vent... It's a tricky business cutting them at the same angle for all cuts.
You have HUGE set of kahunas to cut into your screens!  Hats off to you mate.

Dr.Shifty wrote:
...this blue phone box thing keeps appearing in the back yard. I've got to find who keeps dumping it there and tell him to piss off.
Hmmm... so that's where he went!!   [crazy]
Let's be kind to one another.
Melbourne, Victoria
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