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post #1 of 68 (permalink) Old 10-06-2004, 01:28 PM Thread Starter
 
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135mph+

As I was riding today, I was on the freeway and was able to get her up to 135+MPH. As I hit this speed I started to feel a little shaking in the front. The handle bars were just a bit shakey. I want to try to max her out before the season is over so i can get a few mods done over winter and come spring see if I can top my old speed. Does this happen to anyone else as well with it shaking at high speeds. I started to feel it at 135 and it stayed the same up a few more mph. Any ideas on this guys??
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post #2 of 68 (permalink) Old 10-06-2004, 01:29 PM
 
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Steering head bearings...How many miles do you have? Check you tires for pressure and cupping also.
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post #3 of 68 (permalink) Old 10-06-2004, 01:31 PM Thread Starter
 
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Quote:
Originally Posted by twisty
Steering head bearings...How many miles do you have? Check you tires for pressure and cupping also.

Tire pressure is good. Just had it check less then a month ago. My bike has a little over 13,000 miles on it.
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post #4 of 68 (permalink) Old 10-06-2004, 01:34 PM
 
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huuummm got some friends? I would see if te steering head maybe in need of some grease or bearings.....
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post #5 of 68 (permalink) Old 10-06-2004, 01:36 PM
 
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Could be the tire out of balance.
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post #6 of 68 (permalink) Old 10-06-2004, 01:39 PM Thread Starter
 
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Originally Posted by valpoboyzkenny
Could be the tire out of balance.

Would I only feel it at the speed only or all speeds??
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post #7 of 68 (permalink) Old 10-06-2004, 01:42 PM
 
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Higher speeds
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post #8 of 68 (permalink) Old 10-06-2004, 02:02 PM Thread Starter
 
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So it may be the balance then. Or...

Last edited by GSXR1000DJ; 10-06-2004 at 02:42 PM.
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post #9 of 68 (permalink) Old 10-06-2004, 02:37 PM
 
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Ive read about others with this problem, sometimes only feeling it at lower speeds, turned out to be the bearings! just me
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post #10 of 68 (permalink) Old 10-06-2004, 02:41 PM Thread Starter
 
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Ok I will have the bearing and the balance checked out. Thanks for the good info.
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post #11 of 68 (permalink) Old 10-06-2004, 04:42 PM
 
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Quote:
Originally Posted by GSXR750DJ
As I was riding today, I was on the freeway and was able to get her up to 135+MPH. As I hit this speed I started to feel a little shaking in the front. The handle bars were just a bit shakey. I want to try to max her out before the season is over so i can get a few mods done over winter and come spring see if I can top my old speed. Does this happen to anyone else as well with it shaking at high speeds. I started to feel it at 135 and it stayed the same up a few more mph. Any ideas on this guys??
Did you ever think maybe it was caused by flippin going 135 MPH on a Penn. Freeway??
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post #12 of 68 (permalink) Old 10-06-2004, 05:12 PM Thread Starter
 
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Quote:
Originally Posted by bumblebee
Did you ever think maybe it was caused by flippin going 135 MPH on a Penn. Freeway??

Nah. It can't be that. LOL
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post #13 of 68 (permalink) Old 10-06-2004, 05:33 PM
 
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Originally Posted by GSXR750DJ
Nah. It can't be that. LOL

yeah, it cant be that..PA roads rock!! literally
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post #14 of 68 (permalink) Old 10-06-2004, 10:18 PM
 
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I would keep it under 120 until you figure it out though.. Good luck.
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post #15 of 68 (permalink) Old 10-06-2004, 10:30 PM Thread Starter
 
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Originally Posted by double2000r6
I would keep it under 120 until you figure it out though.. Good luck.

Well do. But after it is fixed and no more shaking...its on.
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post #16 of 68 (permalink) Old 10-06-2004, 11:11 PM
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First of all, I don't recommend doing those speeds on public roads, the best way to see if mods have improved power is with a dyno. That said, the first things I would check is your steering head bearings, tire pressure, wear, and balance (all already mentioned).

More than likely, it is your steering head bearings that need to be tightened. If it isn't, I would look at your steering damper (depending on the year of your bike, you should have one stock) or possibly the suspension. If the bike is unloading the front too much under acceleration it can become unstable or if you have lowered the front too much it can get twitchy.

Larry

Rarely is the question stupid, but sometimes the answer is you need to run everything you read online through your own personal BS meter to determine if it makes sense to you.
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post #17 of 68 (permalink) Old 10-07-2004, 12:25 AM Thread Starter
 
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Quote:
Originally Posted by larryg
First of all, I don't recommend doing those speeds on public roads, the best way to see if mods have improved power is with a dyno. That said, the first things I would check is your steering head bearings, tire pressure, wear, and balance (all already mentioned).

More than likely, it is your steering head bearings that need to be tightened. If it isn't, I would look at your steering damper (depending on the year of your bike, you should have one stock) or possibly the suspension. If the bike is unloading the front too much under acceleration it can become unstable or if you have lowered the front too much it can get twitchy.

Larry

Thanks larry for the info. I will be getting it looked at soon and see what is up with it. I will try the dyno and see if there isn't somewhere safe to take it as well to see what speed she tops out in.
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post #18 of 68 (permalink) Old 10-07-2004, 06:12 AM
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I would never do anything like that without a Scotts Steering Stabalizer. They rock!

I took a buddies 954 out once and when the front end un-loaded under hard acceleration it broke loss like a mofo! Scared the Crapp rite out of me at about 130 and again at 150. I'm talkin nearly a tank slapper at those speeds. OUCH!! It sucked more because it was not my bike. The buddy had just got it and it was doing it to him a bit so I said, get off and I'll show you how to drive. So I let him drive my truck and get out in front of me then I punched the 954 by him. He was doin about 90 when I came by him at about 140 with head shake from he11. "whee, that puckered up my butthole"!!!! Found out later that on the '02 954 they used tapered roller bearings in the head that made it super loose...needless to say they went back to standard roller bearing in '03. Not really a help to the problem but a good story..




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post #19 of 68 (permalink) Old 10-07-2004, 06:13 AM
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O, and life don't start till you get over 120. As long as we come out, I'll show ya what 185+ looks like!!! My 9R luvs that stuff almost as much as I do!!!




-Chris
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post #20 of 68 (permalink) Old 10-07-2004, 07:16 AM
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Quote:
Originally Posted by Gas Man
O, and life don't start till you get over 120. As long as we come out, I'll show ya what 185+ looks like!!! My 9R luvs that stuff almost as much as I do!!!

Rookies...
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