re. buffeting!
 

Hi, had an experiment on the buffeting from my new Ten . I strengthened the peak on my visor, thin strip of aluminum neatly glued to the inside front edge....definatly an improvement . Next I set off armed with two lengths of perspex and some gaff tape to try different heights on the screen. ...made no noticeable difference!! To be continued!! STEVE

Pictures?!!?

D

Hi interceptor, will get some posted as my experiment goes on...going to get another original screen and shorten it inch by inch and see if that helps. On another note, the roads were dry today and the Tourance tyres were gripping, it really felt great to ride, even at running in revs and speed!! I'm really looking forward to West Cork this summer...I think the Ten will be in it's element. Steve

I have covered the gap between the headlight and the forks. great improvement just need to find some suitable material to make it permanent. Have tried a shorter screen also which did help.
http://s1049.photobucket.com/user/yu...tml?sort=3&o=0

Thanks Bonzo 1. It's a bit extravagant but I have ordered a new screen from where I bought the bike.. �50. I shall reduce it inch by inch, with a slight curve and a good finish. If it works great if not I can live with it....the bikes great overall. Thanks Steve

hi there mate,i had same thing with my ten so i brought a extended screen,problem solved,its great even at 75mph plus

+1 for this got a second hand metal mule screen I think off the forum, absolute god send. the original I could live with but this makes visor up riding up to 45mph easy and indicated 80mph ok for a few hours before my bum needs to stop

Have you had a look at some of the threads from a 'Turbulence' search Greatescape? There's a fair bit of coverage there too.
I see Redbikejohn has a nice looking handlebar bag on his Ten which I believe cuts a lot of the blast that comes up through the forks.

Thanks Desert Racer...will check that out. Biking in Australia is a dream of mine.....one day!! Steve

The perfect solution for one person is going to be totally different for another as we�re all different shapes and sizes. What I would do is carry on your experimentation using tape and corrugated card (rather than the Perspex) and try out as many permutations of screen width, height, spoiler, diffusers, jammers, blockers or whatever else takes your fancy! I came up with my personal favourite (see 9 below) after messing about with card, tape and scissors for a couple of hours.

Here are all the things I�ve tried in the six or so years I�ve had the T�n�r�. Of course they won�t work or suit everyone, but should give you some food for thought. BTW I�m about six foot and a fairly standard shape!

1) Standard screen + bird comb stuck to the tank in the fork wells � Reasonable reduction in buffeting. Comb kept falling off though; couldn�t get it to stick well enough without permanently marking the tank.

2) Standard screen + DIY aluminium deflector � Same results as bird comb, but didn�t keep falling off.

3) Puig high screen � Unsuccessful. The screen is too narrow at the top so, although the wind blast is raised, you get loads of turbulence round the sides making the situation worse if anything.

4) Puig high screen + Aerotrim spoiler � Slightly better. Still the drag round the sides of the screen is a problem.

5) Cut down standard screen � Works but� Although you don�t suffer buffeting any more, you do suffer from wind blast to the extent you may as well do away with the screen altogether (or buy a naked bike!)

6) Standard screen + handlebar bag (Touratech) � Some improvement in buffeting, but wind still catches chin of helmet.

7) Standard screen + handlebar bag (Touratech) + 2x LED spotlights mounted either side under headlamp cowling � Further improvement on the above.

8) As above + Touratech spoiler � Better still. Wind blast hitting upper helmet, reduced buffeting, but peak can be a problem. Road helmet is fine. Turbulent air getting round the sides of the still too narrow screen the main cause of the remaining buffeting.

9) As above + DIY perspex 5 cm wide winglets fixed to sides of screen � Almost perfect. The extra width really makes a difference. Only drawback is it looks a bit Heath-Robinson, but it works.

Since fitted a 2cm higher Touratech seat and that�s b0lloxed it all up! The screen ain�t high enough any more � back to the drawing board�

Below are the most viewed threads on the forum that relate to buffeting on the T�n�r� and cover things like the bird comb etc.

http://www.xt660.com/showthread.php?t=9180

http://www.xt660.com/showthread.php?t=15939

http://www.xt660.com/showthread.php?t=18880

I'll try and dig out some photos of the various attempts I've had at curing things...

Here's a few photos to go with previous post (some either can't find, or never took)...

2) Standard screen + DIY aluminium deflector
http://i864.photobucket.com/albums/a...ps0qd9ohuk.jpg

4) Puig high screen + Aerotrim spoiler
http://i864.photobucket.com/albums/a...pslz2mfr3r.jpg

9) Standard screen + TT spolier + DIY perspex 5 cm wide winglets fixed to sides of screen
http://i864.photobucket.com/albums/a...ps2mennbkc.jpg
http://i864.photobucket.com/albums/a...psboo3spmc.jpg

Thanks Pleiades....thanks for taking the time to write such a list of potential solutions. I'm same height, average build so its all relevant to me.....I shall get experimenting. Can I just ask if you have any tips on posting photos. ? I get the photo selected and click upload, it tries to upload but never does. I'm using a Samsung Galaxy Note 4 smartphone, don't have a cess to a pc. Thanks Steve

Wow that's some pretty extensive R&D Pleiades, has a bug deflector been tried on the tip of the mudguard? Because when I drive the Bonneted Freightliner truck at work the windscreen needs washing off at the end of shift (covered in bugs, no bug deflector fitted on the bonnet above the grill). But when I'm in the Kenworth which has the 4 inch bit of Perspex on the bonnet, I can just park it & go home as the windscreens all clear.
A bit of a spoiler or plastic on the front of the mudguard to send the air up before it gets to the fork void my help?
Something else to experiment with on a lazy Sunday afternoon perhaps?

Something I did try recently once the Tenere was properly run in & could stretch its legs a bit was to tuck in with chin near the speedo reducing the gap between me & the screen, made thing a lot calmer the the speed increased by 5kms an hour with the same throttle position.

If you are using a browser to view the forum on your phone, all you need to do is have a URL for each image, it’s dead easy…

Just sign up to any image hosting site (such as Photobucket, Flickr, Dropbox etc…) and upload your pictures from your phone. Personally I use Photobucket. Their phone app is pretty good and it can be set to scoop up all your phone's images automatically so they'll be ready to use anyway). Once you have your pictures hosted on line, they each have their own URL (web address) and it is this URL that you need to use in your posts.

All you’ve got to do then is click on the "insert image" button when creating your forum post and paste in the direct link (URL) of the hosted image you want to display. Alternatively create the image tags yourself and paste in the URL. For example [IMG]URL_goes_here[/IMG]

Alternatively you can view the forum using the Tapatalk app (supporters only) and inserting images into posts is even simpler and can be done direct from your phone.

Can't beat a bit of quality time in the man cave! :033:

Yep. I've noticed this too. The taller your bar risers are, the worse the buffeting gets. You sit more upright and further from the screen.

I also neglected to mention that the fitting of a high mudguard helps too, reducing the rush of air up the channel of uncertainty (between forks and tank).

I had an old screen laying about so decided to attack it with a 10mm drill to see what happened all in the name of science.

http://uploads.tapatalk-cdn.com/2016...b38b6034e4.jpg

Firstly my stats,
Standard seat, I'm 5'11" wear a conventional full face helmet (no peak), clear plastic headlight protector & I have some small spot lights fitted in the gap between the bottom of the headlight & grey indicator panel.

From what I can gather a lot of the buffeting is caused by the vacuum behind the screen & wind up through the fork tunnel. Looking at other tall screen bikes there is a vent in the lower part. So with that in mind the first holes I drilled were either side of the Yamaha logo near the top of the headlight cowling to direct some air up behind the screen. I also drilled some half way up, then in the sides.
Without the holes riding with the visor up with my lid, it would start to close itself at 95kph, with the holes it now stays up to a speed of 125kph. I can feel the wind hitting me lower down now across the shoulders rather than chin to face area. There is still a bit of wind rush around the head but doesn't seem so rough. Bit of a result there. But riding a motorcycle you are generally propelling yourself along faster then nature had intended so a slight discomfort is to be expected.
Previous to fitting the spotties I did also try filling in the gap under the headlight but felt the engine was running a bit hotter in this climate, so it didn't stay there for long even though it worked really well otherwise. Would be fine in colder country's I think.
Just a note on drilling the holes to, going straight in with the 10mm bit was better than a small pilot first, as the bigger drill bit would snatch more violently at the end following through the small previously drilled pilot hole.

Great stuff Desert Racer. .....and what a coincidence! , I was looking through my drill bits the other day trying to decide what size holes to make in the screen. With my cut down screen the buffeting is greatly reduced. ..in fact there is a sweet spot at 65mph where all is calm and quiet. However after a ride around on the XR with NO screen and NO buffeting I know it could be better. Just need to buy a new and sharp drill bit! Steve

Good report, I think I might give it a go,or add it to the ever increasing list..

Nice idea - good tidy mod. Another excellent Pooratech solution! :eusa_clap:

May I ask if it is essential to crack the screen and stitch it back with cable ties to gain the full effect? ;)

Absolutely but is imperative that the broken joint is also smeared with a healthy dose of silicon to or it's not a proper professional bodge job. The original screen (pictured) must of been struggling under carrying the importance of the XT660.com sticker and eventually snapped under the pressure. Tough gig. But Santa bought a replacement last Christmas.

The holes in the front could be drilled around any electronic wizardry such as Sat Nav's if you want to keep the rain directly of the back of them.

Also experienced buffeting with no real solution
Then I slowed down to where it's not a problem anymore, realized I see much more and are far more relaxed

Very good work on averting the effects of buffeting behind the 660 screen Desert Racer.:048:
I recently ran an old Kawasaki KLE 500, 1300k's on our Scrapheap Adventure Ride. Through a myriad of weather conditions, I was completely surprised by the lack of buffeting & on my torso & head with such a small screen, along with fitting an old set of "Quady" handlebars to give me a very upright riding position. Maybe the layered back headlight/fairing/screen, brought across from the GPZ road versions were the answer. I was pretty impressed on 1994 model bike !
The only big buffeting which annoys me whilst riding my XTZ, is when I'm closing in on high square "tauntliners" before I overtake. Getting by as quickly as you can & or stay back out their turbulance is my only answer! :sign13:
I think I'll try drilling some holes in the screen :thumbsup: