weird feeling in handlebar grips?


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Sassy
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weird feeling in handlebar grips?

Post by Sassy »



Hey guys been riding my new to me 89 1500 with 188,000K on it and starting to notice a problem in coming through the grips.
I'm thinking front wheel bearings but wanted to get a bit of input front you lot.
I have spun the wheel and tried to move it side to side but feels good.
at about 30mph when I weave the bike back and forth I feel a vibration/grinding coming up through the bars but as soon as I straighten the bike out it is smooth as glass. I haven't pulled the rotor covers off to look at the brakes but they feel normal.
Any input much appreciated!
Fred


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MikeB
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Re: weird feeling in handlebar grips?

Post by MikeB »

Only hear and feel it when you are leaning or turning? Probably the tires. Feel the sides of the tread and if you feel that the tread is uneven, like the shingles on the roof of a house, then it is just tire noise and nothing to be worried about.
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Re: weird feeling in handlebar grips?

Post by Solo So Long »

Put it on the center stand, with the front tire clear of the ground.

With your fingertips lightly touching the outermost part of the tire, SLOWLY rotate it (2 RPM) for two full revs. It should be smooth. If there is any feeling of grit or rough bearings, pull the BRAKE PADS and retry. Same feeling? Bearings. Smooth now? Brake discs and pads need attention.

Passed the above test? Give the tire a good spin, as fast as you can, and let it keep turning while you line your eye up with the tread of the tire. You will probably see plenty of "terrain" moving up and down, especially away from the centerline of the tread. If you find cupping or feathering of the tread, that may be your problem.

Now get the front wheel on the ground and the rear tire up. Trans in neutral, do the same tests. Remember, a problem anywhere in the running gear can do like Jeff Dunham, and make you think the sound is coming from somewhere else.

This means that you should also make sure that your oil and coolant levels are right. Too little of either can mean pump cavitation, too much oil can mean slapping in the crankcase.
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Re: weird feeling in handlebar grips?

Post by WingAdmin »

Generally when you feel what you're experiencing, it's caused by worn tires - specifically, cupped tires. Shine a flashlight obliquely along the tire surface, you shouldn't see cupped areas in shadow.



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Sassy
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Re: weird feeling in handlebar grips?

Post by Sassy »

Thanks for the input guys I will do these tests and report back.
Fred
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Re: weird feeling in handlebar grips?

Post by Sassy »

Went through the ideas given and ya probably tires.
Though they aren't cupped bad I can see slight ridges on both tires.
Will know for sure when I double Dark the bike in a month or two.
Thanks again to all who gave input.
Fred
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Re: weird feeling in handlebar grips?

Post by DenverWinger »

I'm feeling a little weirdness in my front end on heavy braking and on tight slow speed turns (think turning left or right from a stop sign).

This is the Dunlop E3 on the front, it is nowhere near worn out, but these weird vibrations at slow speed indicates the tire has started to cup. Nothing severe, I just started noticing it this last fall. Not felt at all just going down the road. This is the front tire that was on the bike when I bought it four years ago. I replaced the rear E3 with an E4 shortly after buying the bike, it too was cupped, noisy in turns, 3/4 worn out and had a slow leak in the middle of the tread.

I haven't checked the date code on the front tire, I know it is at least 4 years old, probably more like 6 yrs. No "age" signs in the sidewalls or anything else amiss, still lots of tread left, just the slow speed vibrations. Nevertheless, I will be replacing it with a new E4 before August when "Precious Cargo" and I plan to pull the camper 'cross country again.
♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

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Re: weird feeling in handlebar grips?

Post by DenverWinger »

DenverWinger wrote: Sat May 08, 2021 12:11 am I'm feeling a little weirdness in my front end on heavy braking and on tight slow speed turns (think turning left or right from a stop sign).

This is the Dunlop E3 on the front, it is nowhere near worn out, but these weird vibrations at slow speed indicates the tire has started to cup. Nothing severe, I just started noticing it this last fall. Not felt at all just going down the road. This is the front tire that was on the bike when I bought it four years ago. I replaced the rear E3 with an E4 shortly after buying the bike, it too was cupped, noisy in turns, 3/4 worn out and had a slow leak in the middle of the tread.

I haven't checked the date code on the front tire, I know it is at least 4 years old, probably more like 6 yrs. No "age" signs in the sidewalls or anything else amiss, still lots of tread left, just the slow speed vibrations. Nevertheless, I will be replacing it with a new E4 before August when "Precious Cargo" and I plan to pull the camper 'cross country again.
As I'm proofreading I just got blasted out of my chair by one of those extra-loud Hardleys with no mufflers at all passing by the house! I don't think they could ever hear a cupped tire buzzing, nor would they feel it from all the vibration of the Vee Twin.

Sorry to our respectable members who also own Harleys, I just had to blast the idiot that just sped past my house at full-throttle at almost midnight... :D

Zoom-Splats!
♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

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Re: weird feeling in handlebar grips?

Post by 4given »

DenverWinger wrote: Sat May 08, 2021 12:25 am
DenverWinger wrote: Sat May 08, 2021 12:11 am I'm feeling a little weirdness in my front end on heavy braking and on tight slow speed turns (think turning left or right from a stop sign).

This is the Dunlop E3 on the front, it is nowhere near worn out, but these weird vibrations at slow speed indicates the tire has started to cup. Nothing severe, I just started noticing it this last fall. Not felt at all just going down the road. This is the front tire that was on the bike when I bought it four years ago. I replaced the rear E3 with an E4 shortly after buying the bike, it too was cupped, noisy in turns, 3/4 worn out and had a slow leak in the middle of the tread.

I haven't checked the date code on the front tire, I know it is at least 4 years old, probably more like 6 yrs. No "age" signs in the sidewalls or anything else amiss, still lots of tread left, just the slow speed vibrations. Nevertheless, I will be replacing it with a new E4 before August when "Precious Cargo" and I plan to pull the camper 'cross country again.
As I'm proofreading I just got blasted out of my chair by one of those extra-loud Hardleys with no mufflers at all passing by the house! I don't think they could ever hear a cupped tire buzzing, nor would they feel it from all the vibration of the Vee Twin.

Sorry to our respectable members who also own Harleys, I just had to blast the idiot that just sped past my house at full-throttle at almost midnight... :D

Zoom-Splats!
By now his hearing is bad enough from his Vance and Hines that he wouldn’t be able to hear a cupping noise even on a Goldwing 😏
“Fight the fight and do what is right“
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Sassy
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Re: weird feeling in handlebar grips?

Post by Sassy »

"By now his hearing is bad enough from his Vance and Hines that he wouldn’t be able to hear a cupping noise even on a Goldwing 😏" 4given

I don't know my hearing is toast from rocknroll n racecars but the seat of the pants still works,, lol

Fact- the tinnitus is so bad sometimes I think my wife can hear the buzz sitting beside me!
Fred
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Kawasaki Coyote (early 1970s)
Honda 350 (mid 1970s)
Kawasaki KZ900-PS (1977)
Honda Super Cubs (various years)
Kawasaki KZ1000C (1978)
Kawasaki KZ1000P (various years, 1980 - 2005)
Honda 360 (1983)
BMW R1150RT-P (2001)
BMW R1200RT-P (various years 2007 - 2018, NEVER AGAIN)

Re: weird feeling in handlebar grips?

Post by Solo So Long »

Sassy wrote: Sat May 08, 2021 10:04 amFact- the tinnitus is so bad sometimes I think my wife can hear the buzz sitting beside me!
Let us know what she says when you ask if the noises in your head bother her.
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Re: weird feeling in handlebar grips?

Post by Sassy »

Oh I do plenty that bothers her without asking her that! Lol
Fred


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