Noisy drive shaft on new Virago 99
Claude Poissant
let go of
the throttle (engine compression) I hear a high pitched whining noise
that comes
from the drive shaft or thereabout. At low speed it's bearable but at
highway speed it's
very annoying. At the 1000 km checkup the mechanic at the shop where I
bought
the bike says that all Yamaha's do that. Since then I've checked around
with a few
friends of mine and we all find this odd. Can anyone who's add
experience with
Yamaha Virago's confirm or deny this.
Thanks
Claude Poissant
St-Eustache, Quebec
Kuryliak, Dan [CAR:VG18:EXCH]
Are you sure it's from the driveshaft when you close the throttle? I
have a 97
XV1100 and I hear some deceleration noise when I close the throttle, but
it's more
from the cam gears and valve train, which is normal.
Is it only in one particular gear...like 5th? Or is it in any gear when
you decelerate?
It is possible that the thrust against the differential pinion changes as
you close the throttle and
the diff gears whine a bit. Was the diff oil changed at the 1000km
checkup as the owners
manual stipulates?
If it was my bike, I would put it on the center stand and go through the
gears while listening
to the transmission and differential while accelerating and decelerating.
Make sure that
you have a fan blowing across the cylinders (for cooling) while you do
this and the front wheel of the
bike propped against something solid incase you drop it off the center
stand.
- possibilities to explore: -rear wheel bearing noise
- differential gear whine
- transmission gear whine
- overhead cam chain noise
Dan
--
**********************************************
Dan Kuryliak da...@NortelNetworks.com
LikwidGold
dealer and yam changed the rear end and got rid of the noise
apparently the gears are cut to run to close (no play) therefore the
noise
Sandy Cameron
"Kuryliak, Dan [CAR:VG18:EXCH]" (da...@americasm01.nt.com) writes:
> Claude Poissant wrote:
>
>> I just bought a new 1999 Virago 1100 in late may and I find that when I
>> let go of
>> the throttle (engine compression) I hear a high pitched whining noise
>> that comes
>> from the drive shaft or thereabout.
All the yammy "V" engines whine in the primary gears between the engine
crankshaft and the tranny.
I have an XV920RH that whines, and a Venture Royale that whines.
Anoyingly loud, but I've got used to it.
The 920 whined fresh out of the box, and still does, never got any louder
(thankfully)
A full face helmet goes a long way to cut it down.
Let the road critters suffer.
--
Sandy Cameron
Stittsville
VE3AAC
Kuryliak, Dan [CAR:VG18:EXCH]
> I just bought a new 1999 Virago 1100 in late may and I find that when I
> let go of
> the throttle (engine compression) I hear a high pitched whining noise
> that comes
> from the drive shaft or thereabout. At low speed it's bearable but at
> highway speed it's
> very annoying. At the 1000 km checkup the mechanic at the shop where I
> bought
> the bike says that all Yamaha's do that. Since then I've checked around
> with a few
> friends of mine and we all find this odd. Can anyone who's add
> experience with
> Yamaha Virago's confirm or deny this.
>
I also forgot to mention in my previous post, that shaft drive Viragos
have something
called a "middle gea r". This is the gear coupling from the transmission
output shaft
to the driveshaft itself. There is a bearing and a u-joint (I believe) at
the transmission
end. You might want to check this out also.
Dan
--
*****************************************
Dan Kuryliak da...@NortelNetworks.com
Peter Harper
That would be even more reason to make sure that oil gets changed
frequently. There will tend to be more wear bits in it.
--
Peter Harper VROC #381 |Year 2000: not a bug, a programmed feature
Ottawa, Ontario, Canada |http://www.algonquinc.on.ca/y2k
bo...@freenet.carleton.ca |http://www.algonquinc.on.ca/~harperp
har...@algonquinc.on.ca |http://www.o-l-t.com
Robert Houghton
----------
In article <37A07E76...@videotron.ca>, Claude Poissant
<claude....@videotron.ca> wrote:
> I just bought a new 1999 Virago 1100 in late may and I find that when I
> let go of
> the throttle (engine compression) I hear a high pitched whining noise
> that comes
> from the drive shaft or thereabout. At low speed it's bearable but at
> highway speed it's
> very annoying. At the 1000 km checkup the mechanic at the shop where I
I have a '91 750 Virago, and notice some whine, but it doesn't seem to be
unbearable. Someone replying to this thread mentioned no play in the shaft
drive on newer machines. Mine definately has some typical shaft drive play,
noticed when letting off the throttle - lower gears seems worse. The whine
is there though - I just always assumed it was normal and never thought
twice about it...
Kuryliak, Dan [CAR:VG18:EXCH]
> "LikwidGold" (gt...@yahoo.com) writes:
> > a friend of mine has a 99 V and same noise he raised hell with the
> > dealer and yam changed the rear end and got rid of the noise
> > apparently the gears are cut to run to close (no play) therefore the
> > noise
>
> That would be even more reason to make sure that oil gets changed
> frequently. There will tend to be more wear bits in it.
The differential oil is SAE80-90 hypoid oil. It shouldn't require changing more
than
every 24 months after the initial change at 1,000 km.
>
> --
If the gears are cut improperly, that could result in excessive wear and
a whine that will stay with the bike forever. As mentioned, my 97 doesn't
whine,
so they (Yamaha) assembled it right. Sometimes it's just a little thing like
the
thickness of a thrust washer or how much torque is on the axle nut that can
make a difference.
Only a 12 month warranty on these bikes, so if the noise is objectional and the
dealer
won't do anything about it, contact Yamaha and get them to do something about
it.
Dan
--
********************************************************************
Dan Kuryliak da...@NortelNetworks.com