Sex on a Spyder...

[Donzo]

OK, now that I have your attention.....
I have been noticing a high speed vibration. It is intermittant and almost feels like it is going from peg to peg. If I put my feet on the highway pegs - no vibration, only on the main pegs. I feel it at 55 - 65mph in 5th.
I wonder if maybe my belt is loose and "shimmies" at these velocities?

Anyone else felt/have these on/off peg vibrations? Any ideas?

I am turning 4150-4200rpm at 60mph -

[LDFIREWORKS]

NOT I SAID THE KING:agree:

[ataDude]

It probably is the drive belt harmonics. I run mine on the low end of the tightness specs and it pretty much disappears. It's also easier on the rear bearings.

.


OK, now that I have your attention.....
I have been noticing a high speed vibration. It is intermittant and almost feels like it is going from peg to peg. If I put my feet on the highway pegs - no vibration, only on the main pegs. I feel it at 55 - 65mph in 5th.
I wonder if maybe my belt is loose and "shimmies" at these velocities?

Anyone else felt/have these on/off peg vibrations? Any ideas?

I am turning 4150-4200rpm at 60mph -

[NancysToy]

It probably is the drive belt harmonics. I run mine on the low end of the tightness specs and it pretty much disappears. It's also easier on the rear bearings.
:agree: Please note: most machines will exhibit harmonic vibrations somewhere in their operating range. The trick is to try to get this band as narrow as possible (the engineer's job), and to adjust tires, drivetrain, and motor tune-up (where possible) to a place where the vibration is not in your normal operating range. You may have to play with the belt tension a bit to get this, depending on how you normally ride.
-Scotty http://forum.thestompbox.net/images/smilies/1a_snow.gif

[Donzo]

:agree: Please note: most machines will exhibit harmonic vibrations somewhere in their operating range. The trick is to try to get this band as narrow as possible (the engineer's job), and to adjust tires, drivetrain, and motor tune-up (where possible) to a place where the vibration is not in your normal operating range. You may have to play with the belt tension a bit to get this, depending on how you normally ride.
-Scotty http://forum.thestompbox.net/images/smilies/1a_snow.gif

Is there a "how to" concerning adjusting belt tension on the site?

[Lamonster]

Is there a "how to" concerning adjusting belt tension on the site?
Yea, it's in the "How To" board. :D
http://www.spyderlovers.com/forums/showthread.php?t=5974

[Donzo]

Yea, it's in the "How To" board. :D
http://www.spyderlovers.com/forums/showthread.php?t=5974

Why did you hide it there :opps:....

Thanks Mont!