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post #1 of 11 (permalink) Old Apr 12th, 2019, 4:22 pm Thread Starter
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996 vibrations on handlebars

I noticed some vibrations on speed 60+ (100kmh+), like handlebars going front-back. its maybe few milimeters of move, but still I can feel it. front wheen/tyre is balanced.

is that normal thing on 996? or something to worry?
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post #2 of 11 (permalink) Old Apr 12th, 2019, 4:27 pm
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I noticed some vibrations on speed 60+ (100kmh+), like handlebars going front-back. its maybe few milimeters of move, but still I can feel it. front wheen/tyre is balanced.

is that normal thing on 996? or something to worry?
For sure not normal. Steering head bearings maybe....or maybe not proper torque on the top nut...sean

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My garage: Twins:2000.5 Mille R, 2000 996, 1994 EX500 basket case 1993 900SS. Suzukis: 2004 GSXR600, 1992 GSXR750 oil boiler, 1983 XN-85 Turbo
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post #3 of 11 (permalink) Old Apr 12th, 2019, 5:00 pm
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Not normal, check front wheel bearings as well.
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post #4 of 11 (permalink) Old Apr 13th, 2019, 1:46 am Thread Starter
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checked both. no noise no play.

maybe I described it wrong. there are no play in handlebars, just one handlebar going front while other going back. like you steering left and right very fast. and its very subtle movement but can be noticed.

still not normal ? thanks
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post #5 of 11 (permalink) Old Apr 13th, 2019, 2:05 am
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Disconnect the steering damper and take it for a ride.
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post #6 of 11 (permalink) Old Apr 13th, 2019, 3:31 am
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Carefully check your tires. Cupping is hard to see but can cause vibration. How old is the fork oil? Was the suspension set to your weight? Were the forks pinched when the front tire was mounted? All prime suspects for wobble and easy to miss.

Tire wear caused this wobble!

2016 Hypermotard 939SP
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post #7 of 11 (permalink) Old Apr 13th, 2019, 10:09 am
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checked both. no noise no play.

maybe I described it wrong. there are no play in handlebars, just one handlebar going front while other going back. like you steering left and right very fast. and its very subtle movement but can be noticed.

still not normal ? thanks
Definitely not normal. Are you putting alot of weight on the bars? Just trying to separate whether what you feel is induced or actual feedback.

Pinch the tank with your knees and flex your abs to hold your body weight. Keep a light touch on the bars and see if you still feel an oscillation through the bars. If not, the movement you feel is induced rather than something the front end is actually doing.

If you can definitely isolate it to the front end, tire pressure, tire wear or fork setting *might* be the cause. Don't over look the rear end though. An issue back there might be the cause.....sean

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My garage: Twins:2000.5 Mille R, 2000 996, 1994 EX500 basket case 1993 900SS. Suzukis: 2004 GSXR600, 1992 GSXR750 oil boiler, 1983 XN-85 Turbo
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post #8 of 11 (permalink) Old Apr 13th, 2019, 10:36 am
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Make sure the forks are aligned. (prior wreck or drop)

Are the parts clamped in the forks correctly? You can check by looking on the front of the triples and make sure the locating pin is properly located in the upper triple. I can provide a picture of that does not make sense. (prior wreck or drop)

Is there enough air in the front tire?

97 916/996 "The Time Machine"
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post #9 of 11 (permalink) Old Apr 13th, 2019, 3:06 pm
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also do this: stand in front, grab front wheel tightly with your knees, grab bars with your hands, then push/pull bars back & forth and up & down. Do you feel any play in the system? If so, work to isolate where its coming from.

-bucky
2011 1198 - 2001 996 mono - 2002 ST4s ti - 2003 R1150RT
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post #10 of 11 (permalink) Old Apr 15th, 2019, 4:02 am Thread Starter
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thanks all on replies.

now going to check all things mentioned.

just one thing.. some pin in tripples. where is that pin?

bike never crashed but I had drop from sidestand.
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