Shake, in the Bars/Forks - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 16 (permalink) Old 06-14-2013, 12:22 AM Thread Starter
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Question Shake, in the Bars/Forks

Got a new kind of shaking now. If I let go of the bars around 35mph and above the front end shakes, but it's not consistent, doesn't happen all the time.

Somebody will say, don't let go of the bars. But it wants to shake some times if I just relax my arms. I can stop it by changing speed quickly and/or tightening my grip and arm muscles.

It's getting a new tire right away, anything I should do or look for? I've already checked all the bearings and none have any play at least.

I also need to align the front. It was biased to the left and I tweaked it twice, which helped but it's still pulling slightly. Related?
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post #2 of 16 (permalink) Old 06-14-2013, 12:34 AM
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Be sure to balance the new tire.

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post #3 of 16 (permalink) Old 06-14-2013, 07:38 AM
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^ x2. Ride-On in the tire could help to balance it out some too as well as potentially saving you from a flat.

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post #4 of 16 (permalink) Old 06-14-2013, 08:42 AM
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Quote:
Originally Posted by Deviate View Post
^ x2. Ride-On in the tire could help to balance it out some too as well as potentially saving you from a flat.
And check the side to side runout on your front wheel,it may be bent a little.




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post #5 of 16 (permalink) Old 06-14-2013, 08:55 AM
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You might want to check your calipers. If one isn't fully releasing, it could cause the symptom you're talking about. If it was something bent or out of balance, I would think that it wouldn't happen intermittently, nor go away by blipping the throttle.

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post #6 of 16 (permalink) Old 06-14-2013, 09:07 AM
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Also, while the front tire is lifted off the ground check back and forth and side to side play in the tree neck. Could have warn bearings in the neck.
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post #7 of 16 (permalink) Old 06-14-2013, 11:17 AM Thread Starter
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Ok, thanks guys, headed out to change the tire and I'll check all these items. I do have the Ride-On to put in the tire, it's working fine for the rear, didn't even notice anything on the first couple of miles.

Bent rim is a possibility since it hit some way with the front, didn't look for that or the runout.
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post #8 of 16 (permalink) Old 06-14-2013, 11:15 PM Thread Starter
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Mounted the tire and rode 60 miles. The shake is gone with the old tire, it looked a tiny bit deformed after I got it off. It does have some very slight play in the neck if you pull the forks forward, the wheel was arrow straight.

Just need to get the alignment right, still biased left a bit.

Nice ride today, ran great, great gas mileage and power, handles pretty good even with bad alignment.

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post #9 of 16 (permalink) Old 06-15-2013, 01:36 AM
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I didn't know you could align the front tire. Maybe you’re leaning a tiny bit to one side. With my scoliosis I know my upper body leans a bit to one side which can make my slightly offside weight make the bike ease to the right if I’m just sitting relaxed.

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post #10 of 16 (permalink) Old 06-15-2013, 02:15 AM
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Quote:
Originally Posted by FoolAmI View Post
I didn't know you could align the front tire. Maybe youíre leaning a tiny bit to one side. With my scoliosis I know my upper body leans a bit to one side which can make my slightly offside weight make the bike ease to the right if Iím just sitting relaxed.
Yeah, the tubes can allow the front wheel to twist one direction or another if they are loose. Also, if the tubes are not level in the triple, it could cause mis-alignment.

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