Windscreen holes to reduce turbulence - Page 2 - Suzuki Burgman Forum
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post #11 of 28 (permalink) Old 08-14-2013, 07:37 PM Thread Starter
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THANK YOU to all those who replied. I'll probably install washers for a start & see what improvement those make.
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post #12 of 28 (permalink) Old 08-14-2013, 10:16 PM
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Originally Posted by ErikDK View Post
I cut 2 50mm (2") holes at the bottom of my cracked Giwi screen as an experiment, and it works so well that I never use the undamaged replacement, which gives more buffeting and noticeably worse fuel mileage.
Hmm. Sounds like I need to enlarge/add more holes.
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post #13 of 28 (permalink) Old 08-14-2013, 11:25 PM
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My solution for me on my '08 400 was to just remove the stock factory windscreen and replace it with a Givi...........Very happy now.!!

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post #14 of 28 (permalink) Old 03-13-2017, 01:31 PM
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Originally Posted by Dave_J View Post
I added some steel washers under my shield that allows air under. Try that and see.
How many washers did you put under the windscreen? Steel or Rubber Washers? I'm getting a new Givi D257ST for mine.

Al in Sunny Tampa Bay Florida (St Petersburg)
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post #15 of 28 (permalink) Old 03-13-2017, 02:41 PM
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I too have what I would call extreme wind/cold down my neck. It's hard to believe such an age old problem hasn't been figured out and avoided at the mfg. design level. Like the V Strom too, it's different but worse yet. Madstad sounds like a possible answer.

Carl
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post #16 of 28 (permalink) Old 03-13-2017, 03:56 PM
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How many washers did you put under the windscreen? Steel or Rubber Washers? I'm getting a new Givi D257ST for mine.
You can only get about 1/8 inch of washers without going to a longer screw. I used two stainless steel washers.
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post #17 of 28 (permalink) Old 03-13-2017, 03:56 PM
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I may be behind the game but I just emailed Madstad and asked them if they had anything for the Burg. here is there reply!



Hi Carl,

Yes, we do have a system for your ride and I have attached some images for you.

This kit includes a pair of adjustable brackets (3" height, 20 degrees angle) the "Sport SD" styled shield, in your choice of height and tint, along with all required attachment hardware. An example of pricing would be $219.95 for the complete kit with a 20" Light Gray shield.

At this time we do not have the Burgman system listed on our website so please give us a call should you decide to order. We will want to know your height and inseam as well as if any seat mods. This will help to recommend a shield size for you.


Thank You!
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post #18 of 28 (permalink) Old 03-13-2017, 07:26 PM
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Start with a 1/4" spade bit to place the holes. Space them to allow for enlargement if needed. Before you break through, put the drill in reverse and push--this will melt though the last bit and reduce potential cracking. If you're drilling the windscreen while it's on the scoot, put a barrier behind it, so the drill point doesn't prick the dash housing.

Air does flow through even at 1/4" diameter holes, but not much (enough to blow plastic shavings out). I increased the holes to 3/8", then (after a test ride) to 1/2". As I mentioned previously, it seemed to help a bit.
How do you enlargement the holes with a spade bit without wallowing since you loose the center support for the point when you drill the first hole through?

How does drilling a few holes improve the airflow significantly over and above the slot in the cowl at the base of the windscreen?


Last edited by Skunkhome; 03-13-2017 at 07:31 PM.
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post #19 of 28 (permalink) Old 03-14-2017, 03:39 AM
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Nobody's mentioned LeDude's website yet !!!! Refer his section on windscreen removal and shimming. Most comprehensive write-up............... as always. I shimmed the Givi D263ST on my machine so that the top lip moved rearwards, closer to my helmet. At highway speeds, with the screen max. UP, I find that head buffeting is greatly reduced. AS ever, there is a down side i.e. the inside of the screen surface get dirtier, faster and has to be removed for access to wash all the bugs off.
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post #20 of 28 (permalink) Old 03-14-2017, 03:42 AM
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Quote:
Originally Posted by Dave_J View Post
You can only get about 1/8 inch of washers without going to a longer screw. I used two stainless steel washers.
Thank You Dave_J, I will do that.
Cheers!

Al in Sunny Tampa Bay Florida (St Petersburg)
2006 Burgman AN650 K6 White (The White Knight)
2008 Burgman AN400 K8 Red (The Red Baron)
1979 Honda CB 750 Silver
1979 Penneys 50 Moped Red
1974 Yamaha 360 MX Yellow
1973 Yamaha 80 MX Silver
1972 Honda QA 50 Red
1971 Kaw Bighorn 350 Enduro Brown
1970 Kaw H1 500 Red
1968 Kaw 120 Scrambler Red
1968 Kaw 120 Scrambler Blue
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but Toyota's Rule, no doubt!
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