OK, so I choose a bad pic, but the Evo's do come out the factory with them on the rear of the roof...

Noisy Screen!
#61
Posted 14 September 2009 - 11:17 am
OK, so I choose a bad pic, but the Evo's do come out the factory with them on the rear of the roof...

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#62
Posted 15 September 2009 - 02:01 pm
The leading edge is now about 15mm away from the fairing.
Climbing the motorway slip-road I noticed that I could hear the exhaust more than usual which suggested less wind noise.
Riding at motorway speeds I was getting a bit more air hitting my chin than before so my neck warmer was being blown about a bit, but it did feel smoother and more comfortable sitting up at 'keeping up with the traffic' mph for 15 minutes or so.
I'm hoping to try a standard screen and maybe cut it to see if it is any better.
Edited by MCBodge, 15 September 2009 - 02:55 pm.
#63
Posted 15 September 2009 - 02:14 pm
The leading edge is now about 15mm away from the fairing.
Climbing the motorway slip-road I noticed that I could hear the exhaust more than usual which suggested less wind noise.
Riding at motorway speeds I was getting a bit more air hitting my chin than before so my neck warmer was being blown about a bit, but it did feel smoother and more comfortable sitting up 'keeping up with the traffic' mph for 15 minutes or so.
I'm hoping to try a standard screen and maybe cut it to see if it is any better.
Weather & time permitting I'm going to try raising the leading edge on my std screen this weekend, so will report on findings.
I did read on another screen thread that lifting the screen all the way round did start to have a negative affect, so won't go too far...
After that it's "Tool Time", and I'll start drilling holes to see if that has any affect...

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Fuel Pipes
Givi Top Box
Renthal 758's
Grip Puppies
MRA Bubble
Dip & Hi HIDs
To-Do:
LED DRLs
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#64
Posted 16 September 2009 - 01:19 pm
I see that MRA do a touring screen for the TDM900 (not the Vario one) which is slightly longer and more upswept than the standard. Has anyone any experience of this screen, it looks a little like the Eagle screen which I have heard mentioned. I have already spashed out £80 for the tallest Yamaha accessory screen which doesn't seem much better than the standard one, and I am hesitant about splashing out more money on a screen which again may not work for me.
Unfortunately I am also not very practical so I don't think I would be great at cutting a screen down or drilling a load of holes!
Thanks for your help
PNB
#65
Posted 16 September 2009 - 01:42 pm
I see that MRA do a touring screen for the TDM900 (not the Vario one) which is slightly longer and more upswept than the standard. Has anyone any experience of this screen, it looks a little like the Eagle screen which I have heard mentioned. I have already spashed out £80 for the tallest Yamaha accessory screen which doesn't seem much better than the standard one, and I am hesitant about splashing out more money on a screen which again may not work for me.
Unfortunately I am also not very practical so I don't think I would be great at cutting a screen down or drilling a load of holes!
Thanks for your help
PNB
Simple test would be to put spacers on the bottom set of screws (closest to the headlamps) on the screen, and see if that makes any difference.
It has the same effect as the hole drilling, but is a lot less intrusive.
You may find that this solution goes a long way to helping solve your problem.

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Fuel Pipes
Givi Top Box
Renthal 758's
Grip Puppies
MRA Bubble
Dip & Hi HIDs
To-Do:
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#66
Posted 16 September 2009 - 02:16 pm
Thanks for your help
PNB
Find that strange PNB. I have borrowed a Yamaha tallest screen and find it bang on. So much so I am going to order one (unless e-bay turns one up first!).
Hope you find what you need to be comfortable. Can be annoying with the wind blast in the wrong place
Matt
#67
Guest_shadowjack_*
Posted 17 September 2009 - 07:10 am
#68
Posted 18 September 2009 - 11:41 pm
Anyway, I'm sort of short at 5'6", but now the noise/turbulence is gone except for some wind smacking the tops of my shoulders. When I removed my rather large aftermarket mirrors, much of the shoulder wind is reduced. But I need my mirrors, so I may look into handlebar mirrors. My air pocket is now much cleaner. With a full face Caberg helmet, I am catching clean wind from the chin up now which isn't a problem for me at most speeds I normally ride.
Here is a bad photo, I stuck a piece of rubber between the two fairings in this photoshot only to give you an idea of where the gap is.

Here's a photo of the gap at the bottom of the sandwich:

Can't help but laugh at this photo, because when I see all of the bugs splattered on my fairing I am reminded of going to Harley rallies in the US of A and seeing the vendors who sell Bug Spray in aerosol cans to give your Harley the real poser image.
PS: I just love my TDM. It is the Ultimate Hooligan Bike, even for old farts like me. I jump curbs, ride up stairs to hotel entrances, and slash across roads that are really no more than goat trails.
Edited by kiko, 19 September 2009 - 01:21 am.
#69
Posted 19 September 2009 - 08:27 am

Brilliant work, there are a lot of interesting ideas put in to practice there.
Never thought about the mirrors and I like the double skin effect.
Its obvious that the opening is quite big, bigger than my drilled pattern.
The spanners are coming out again.
any chance of a few more pictures.
Cheers, Ivan
Kawasaki GT550, XJ900 Diversion, 2002 TDM 900 , 2008 TDM 900a, 2010 TDM 900a.
#70
Guest_graeme_*
Posted 19 September 2009 - 11:38 am

Anyway, I'm sort of short at 5'6", but now the noise/turbulence is gone except for some wind smacking the tops of my shoulders. When I removed my rather large aftermarket mirrors, much of the shoulder wind is reduced. But I need my mirrors, so I may look into handlebar mirrors. My air pocket is now much cleaner. With a full face Caberg helmet, I am catching clean wind from the chin up now which isn't a problem for me at most speeds I normally ride.
Here is a bad photo, I stuck a piece of rubber between the two fairings in this photoshot only to give you an idea of where the gap is.

Here's a photo of the gap at the bottom of the sandwich:

Can't help but laugh at this photo, because when I see all of the bugs splattered on my fairing I am reminded of going to Harley rallies in the US of A and seeing the vendors who sell Bug Spray in aerosol cans to give your Harley the real poser image.
PS: I just love my TDM. It is the Ultimate Hooligan Bike, even for old farts like me. I jump curbs, ride up stairs to hotel entrances, and slash across roads that are really no more than goat trails.
#71
Posted 19 September 2009 - 01:55 pm
The reason I suspect that cutting off the lip is the most bang for the buck is when I test rode the bike with both screens in place, I placed my ungloved hand into the gap between the two screens at a speed of about 120km and I did not feel any rush of air coming up from the gap. Some air is coming thru the gap but not nearly as much as I suspected would be coming up.
So I really do not know if the gap is doing anything. Either way, it is a real relief to be able to ride fast again without all of that noise/turbulence blowing all over me.
#72
Posted 19 September 2009 - 06:30 pm
I had a think about your idea of another skin and of course it makes sense.
The second skin channels the air up to where the eddies ( buffeting) is made.
On my screen I have the holes drilled in which did help.

But by adding a second skin the effect is dramatic. I used a tough black polythene to stretch across the back of the screen before screwing it down and cut off the surplus, so it was tight like a drum.

From the top you can see the gap.

Been out for a ride and its smooth as silk ......

I took it up to 75 mph and the ride is much better, at 55mph its like your just rolling along with no effort.
Obviously it is temporary, but it proves your point.
I will keep my eye open for something more ridged, but as an experiment.......

Its Brilliant.
Cheers, Ivan
Edited by Geordie Guy, 19 September 2009 - 06:34 pm.
Kawasaki GT550, XJ900 Diversion, 2002 TDM 900 , 2008 TDM 900a, 2010 TDM 900a.
#73
Posted 20 September 2009 - 11:14 pm

So the plan of getting the head above the effect of the screen that a few here are using seems very sound, however I prefer the look of the stock screen and don't want to cut it down unless I absolutely have to. I'll be watching Ivan's latest experiment with interest - it looks close to stock but if it reduces the noise it will be a great fix. I've only had the bike a bit over a week and it's too soon to start drilling holes in the screen unless I'm sure it will work.
Made me get to wondering - what exactly is the point of the fairing/screen on the TDM? As far as I can see it just keeps the weather off the instrument cluster. If it's just cosmetic, there are plenty of (non-TDM) riders out there who might think that Yamaha missed the mark there too

#74
Posted 21 September 2009 - 01:15 am

So the plan of getting the head above the effect of the screen that a few here are using seems very sound, however I prefer the look of the stock screen and don't want to cut it down unless I absolutely have to. I'll be watching Ivan's latest experiment with interest - it looks close to stock but if it reduces the noise it will be a great fix. I've only had the bike a bit over a week and it's too soon to start drilling holes in the screen unless I'm sure it will work.
Made me get to wondering - what exactly is the point of the fairing/screen on the TDM? As far as I can see it just keeps the weather off the instrument cluster. If it's just cosmetic, there are plenty of (non-TDM) riders out there who might think that Yamaha missed the mark there too

Cypher,
I wear a helmet that's been rated as quiet and I'm still wearing plugs for trips at hwy speeds... if I'm lucky I might be able to get away using some 10-15dB filtered plugs, but they'll have to be custom made, and that means after next payday.
You can emulate what Geordie Guy has done by loosening the bottom screws of you screen, even removing the middle one, and jamming in a small piece of rubber. This will form a gap at the bottom and allow air behind the screen, tighten the outside screws to secure everything. You could even try the twin-skin experiment this way by just making the skin out of duct tape. If you don't like it, you can then put everything back the way it was without any damage done.
Cheers,
AzzA
PS try riding without the screen, just to get a baseline for your helmet noise at normal seating position.
#75
Posted 21 September 2009 - 03:18 am
I can say its no where near as bad as the V-Strom.... after 10 minutes at 100kmh I felt like I was going to need to rinse the inside of my helmet.... (maybe that's why Harley riders prefer open faced helmets....)
Cypher - in relation to the fairing/screen being cosmetic - its actually more noticeable over long distance and at highway speeds. I was exhausted after taking the SV on a 200km trip, mainly because you're constantly being hit with the wind and your arms are working all the time against it. The TDM is an absolute dream in comparison. No pressure on the chest, arms are nice and relaxed.... I'm liking fairings

2006 TDM900 - Silver, Staintune exhausts, EFI mod, centre stand, Ventura rack. More to come!
Other bikes I've known:
CB250
VTR250
SV650
#76
Posted 21 September 2009 - 06:14 am
I can say its no where near as bad as the V-Strom.... after 10 minutes at 100kmh I felt like I was going to need to rinse the inside of my helmet.... (maybe that's why Harley riders prefer open faced helmets....)
Cypher - in relation to the fairing/screen being cosmetic - its actually more noticeable over long distance and at highway speeds. I was exhausted after taking the SV on a 200km trip, mainly because you're constantly being hit with the wind and your arms are working all the time against it. The TDM is an absolute dream in comparison. No pressure on the chest, arms are nice and relaxed.... I'm liking fairings

Most of my riding over the past 10 years has been on dirt bikes - the only bike I have to compare it to was my brothers XJ750 which I borrowed and rode as my primary transport for a while many years ago - it was an armchair on the open road at speed, very comfortable... in fact when I started looking at getting a bike again the first model I looked into was the XJ900 Diversion... however, the do-it-all reputation of the TDM won out (nearly got a V-Strom... glad I kept looking!).
I'm going for a run into SA next weekend (weather being kind) - 300ks there and back, mostly straight open road, maybe return on the dirt on the northern side of the river, check out Lake Victoria. That should give me some experience on the bike to work from

#77
Guest_graeme_*
Posted 21 September 2009 - 11:43 am

So the plan of getting the head above the effect of the screen that a few here are using seems very sound, however I prefer the look of the stock screen and don't want to cut it down unless I absolutely have to. I'll be watching Ivan's latest experiment with interest - it looks close to stock but if it reduces the noise it will be a great fix. I've only had the bike a bit over a week and it's too soon to start drilling holes in the screen unless I'm sure it will work.
Made me get to wondering - what exactly is the point of the fairing/screen on the TDM? As far as I can see it just keeps the weather off the instrument cluster. If it's just cosmetic, there are plenty of (non-TDM) riders out there who might think that Yamaha missed the mark there too

Hi Cypher, as Azza says, try the "no screen" to get an idea. The dual skin concept is like the Vario airfoil, a secondary airflow is used to break up the buffeting but it cant make up for the sheer volune of air coming over the edge. It proably will reduce or eliminate buffeting but thats not noise.It really is a matter of the helmet being in or out of that flow. From what i am hearing lately most bikes with fairings (except really big ones) suffer some sort of noise or buffeting issue, the interesting thing is that riders seem to think its just a part of the deal and put up with it or buy earmoulds. The fact that the look of the bike will govern many riders decisions is also probably why the makers just keep making the same old stuff. I have the cut down double bubble i trialled, too late for this weekend but will send it up if you want . PM me. You get used to the the cut down look real quick and because it does keep the main of the wind off you the ride is just great! Worth noting that on MRA Vario blurb the claim is to eliminate buffeting but only reduce noise.
cheers Graeme
#78
Posted 21 September 2009 - 06:38 pm
Still needs a tad more removing to make it look right, but it aint gonna happen


Mk2a 2000 in Silver. Top end Refurb @ 41100 miles, Scottoiler, Renthal Road High Bars, Up & Back Bar Risers, Bellypan, DL650 Handguards, Capt. Picard Bar Ends, House of Henty SS Wheel spacers, New Seat Cover Fitted. 58 MPG !! Now owned by chrisbee ! Studley's mk2a Bloggerydoodaah ! Photos of my first MK1 Photos of my MK2a TPLQHCSRSFC No. 1 Fan
#79
Posted 21 September 2009 - 09:24 pm
#80
Posted 21 September 2009 - 09:42 pm
I used the back of a A4 folder from college in the picture.
I am sure I've seen some semi-ridgid black sheet somewhere, which I will try next.
But it is going to be a perminant fixture now.
Cheers, Ivan
Kawasaki GT550, XJ900 Diversion, 2002 TDM 900 , 2008 TDM 900a, 2010 TDM 900a.
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