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License Plate Cracking (Read 149 times)
UglyBrute
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License Plate Cracking
07/22/19 at 10:04:46
 
Has anyone else had issues with their license plate cracking? I think its due to wind resistance and the new cheap/thin plates Michigan uses now. Purchased a backplate to hopefully fix this.
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philthymike
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Re: License Plate Cracking
Reply #1 - 07/22/19 at 10:14:43
 
PA plates are no better. Mines cracked 1/3 of the way across. I think the vibration is the culprit.
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oldNslow
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Re: License Plate Cracking
Reply #2 - 07/22/19 at 10:47:29
 
It's the bike, not the plate. That plate bracket shakes like crazy. A couple of layers of duct tape on the back of the plate.Punch holes through the tape with a big phillips screwdriver, big flat washers on the bolts.
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Tocsik
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Re: License Plate Cracking
Reply #3 - 07/22/19 at 10:54:15
 
Definitely a known issue. áIt's the vibration and maybe a little bit of air pushing against it, too.  Both top corners on mine are gone at the bolt holes and I have it fixed up.

Example of another thread: áhttp://suzukisavage.com/cgi-bin/YaBB.pl?num=1414813046/9
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justin_o_guy2
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Re: License Plate Cracking
Reply #4 - 07/22/19 at 14:29:45
 
I used a license plate off a car, cleaned everything up, used Devcon five minute epoxy to add a layer of metal.
Trim, install, seems to be surviving after a couple of years.
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LANCER
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Re: License Plate Cracking
Reply #5 - 07/22/19 at 14:52:02
 
USA a plate holder that surrounds the entire plate and use bolts on all 4 corners.
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stewmills
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Re: License Plate Cracking
Reply #6 - 07/22/19 at 15:01:10
 
I have an extended aluminum license plate backer that came on my bike from another state that required it for registration stickers. I took it off when I got the bike and plates cracked every time. Put it back on and no more issues with cracked plates.
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batman
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Re: License Plate Cracking
Reply #7 - 07/22/19 at 17:35:51
 
Had the same plate since 1996 , but use full backing plate , full front frame and bolts in all four corners.
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norm92de
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Re: License Plate Cracking
Reply #8 - 07/22/19 at 17:57:40
 
I'm puzzled. My plate seems to be doing just fine. I have a chrome frame and four bolts, nothing special? Smiley
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batman
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Re: License Plate Cracking
Reply #9 - 07/22/19 at 18:25:59
 
Norm , the vibrations get heavier if you push the motor past 3,000 rpm  Smiley
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norm92de
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Re: License Plate Cracking
Reply #10 - 07/22/19 at 19:08:51
 
Of course.

My normal RPM is around 4k= 62 mph or so. Around town it is limited by the speed limit. Up and down as needed.
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2014 S40. Raptor. idle mixture adj.Needle raised one notch. 4000' altitude. Stock jets. Shell Rotella synthetic.
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batman
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Re: License Plate Cracking
Reply #11 - 07/24/19 at 05:48:52
 
Norm ,I was joking about the you riding at 3000 rpm . but if anyone is interested, you can determine your rpm  in 5th gear on a stock bike by multiplying your speed by 66.8  ex: 62 mph x 66.8 = 4,141.6 rpm. . Early 4speed bikes ,use 66.12  ex; 62 x 66.12 =4,099 .4 rpm.
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norm92de
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Re: License Plate Cracking
Reply #12 - 07/24/19 at 06:08:18
 
I've got a tach on my bike so the mental gymnastics is not necessary. Smiley
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2014 S40. Raptor. idle mixture adj.Needle raised one notch. 4000' altitude. Stock jets. Shell Rotella synthetic.
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batman
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Re: License Plate Cracking
Reply #13 - 07/24/19 at 07:28:42
 
I used them to determine the speed ranges where I wanted the boosts to fall when I tuned my intake , being most of the charts list them in RPM's , and to judge proper shift points.
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Re: License Plate Cracking
Reply #14 - 07/26/19 at 07:57:54
 
Place garden hose rubber washer between license plate and frame.  One for each screw.
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