High speed wobble... :O
- steell
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And I didn't say that overtightened steering bearing were the cause, just that they might be.
Do a search for GPz750 FAQ, it's covered pretty thoroughly there.
KD9JUR
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- ELCouz
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Loose steering bearings surely will vibrate, thus causing a wobble, not a weave.
And I didn't say that overtightened steering bearing were the cause, just that they might be.
Is there a way to check a overtightened steering bearing beside loosening the steering and re-torque to correct setting?
thanks steell!
regards,
laurent
1982 KZ810-R1 GPZ with hindle 4-into-1 pipe
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- racer54
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1980 LTD (changed over the years), 1979 LTD (being rebuilt), 1977 KZ turbo and various KZ's in various states of build. KLX110
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- 650ed
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ELCouz wrote:
Loose steering bearings surely will vibrate, thus causing a wobble, not a weave.
And I didn't say that overtightened steering bearing were the cause, just that they might be.
Is there a way to check a overtightened steering bearing beside loosening the steering and re-torque to correct setting?
thanks steell!
regards,
laurent
Please keep in mind your bike may be completely different than this, but below are the instructions for checking the steering on the 1977 KZ650. These are from the Kawasaki Service Manual. I suggest you find the correct manual for your model before adjusting the steering to make sure you have the correct instructions for your bike. The torque value listed for the 1977 KZ650 "Steering Stem Locknut" is 19.5 - 24 ft lb and for the "Steering Stem Head Bolt" it's 29 - 36 ft lb.
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1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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- ELCouz
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I have a million dollar question ... how do you torque properly (at the correct torque settings) with a steering nut wrench !!!!?
Thanks
laurent
1982 KZ810-R1 GPZ with hindle 4-into-1 pipe
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- 650ed
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TA x L
= TW
L + A
L = Effective length of the wrench as described below.
Dial Wrenches = The measured distance from the center of the square drive to the center ring or notch on the handle.
Micrometer Wrenches = The measured length from the center of the square drive to the center of the handle, with the wrench set at the desired torque reading
A = The measured length from the center of the adapter drive to the center of the wrench square drive.
TA = (Desired Torque) The torque value designated for the fastener with or without an adapter.
TW = (New Setting) The torque setting on the wrench allowing for the added length of the adapter. This reading will be lower than the desired torque.
In my case, using the 7” spanner/adapter, and desiring 260 inch pounds of torque on the steering stem locknut, the formula looks like this:
260 x 8.17
= 140.0
8.17 + 7
(8.17” was the effective length (L) of my torque wrench when dialed in for 140 in. lbs.)
So, I set my torque wrench at 140 inch pounds to apply 260 inch pounds of torque on the steering stem locknut. Your numbers will be different depending on the length of your wrench and adapter and the amount of torque you desire.
I HIGHLY recommend you take a look at the CDI Torque Wrench site. They give a detailed description of the use of torque adapters - which is what the spanner actually is. Go to
www.cditorque.com/
click on “TORQUE FACTS” then select “USE OF ADAPTERS.”
Here's what I made and used:
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Attachment Spannerandwrench.jpg not found
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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- ELCouz
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I would go the lazy way (no maths hehe) !
Its amazing what you can do with a dremel and patience
regards,
laurent
1982 KZ810-R1 GPZ with hindle 4-into-1 pipe
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- ELCouz
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gotta go your way!
have a nice day,
laurent
1982 KZ810-R1 GPZ with hindle 4-into-1 pipe
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- Kidkawie
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1975 Z1 900
1994 KX250 Supermoto
2004 KX125
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- ELCouz
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Most noticably on high speed curves
Yes right on! It started in a long curve at high speed...
Keep your stories coming, it give me points to look for
Look likes those bikes where prone to weaving, maybe it was not fully understood by bike maker at the time!
best regards,
Laurent
1982 KZ810-R1 GPZ with hindle 4-into-1 pipe
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- mtbspeedfreak
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The Z1s used thinner gauge tubing compared to KZs and flexed more.
2000 ZRX 1100
1976 KZ 900- Daily Driver
1980 LTD 550- Dalton Highway survivor!
If it has tits or tires, it'll give you problems!
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