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 The secret to smoothness

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lcjohnny
JohnA
beetle
Oz1200Guzzi
guzziownr
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guzziownr
Sfregiato
Sfregiato
guzziownr

Posts : 458
Join date : 2013-12-24

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PostSubject: The secret to smoothness   The secret to smoothness Icon_minitime1Thu Jul 15, 2021 12:58 pm

My 2013 8V was very smooth, no real vibration issues and I could ride it all day.

My current GRiSO is a 2007.

Valves are adjusted, TBs balanced, Beetle mapped and it is very vibey (for a Guzzi) and puts my hands to sleep in about 30 minutes.

I recently changed the handlebar which helped a little but I wonder why it is so different from the 8V.

My other bike is a 1975 Guzzi Eldorado with a tuned 950 Tonti motor (insert hot rod babble here). It too is very smooth and when it gets a bit vibey I can tell the carbs need balancing and it smooths right out.

Are the 4Vs just that way and I should stop trying?
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Oz1200Guzzi
Don Abbondio
Don Abbondio
Oz1200Guzzi

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PostSubject: Re: The secret to smoothness   The secret to smoothness Icon_minitime1Thu Jul 15, 2021 2:58 pm

My 2V 1200 is vibey, though half that is how tight I grip the handlebars - I have to keep reminding myself to relax, which helps enormously.

However I have a vibration around 3,000 rpm and a buzz around 4,000 rpm. I avoid these engine speeds, preferring to run over 4,000 whenever possible - engine smooths right out from there.

There are a few things that will make a difference: your muffler mount might need some insertion rubber where it bolts onto the frame; different bar ends weights - I found I had to go lighter with the handguards. Perhaps some grip-puppies might also help...
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beetle
GRiSO Capo
GRiSO Capo
beetle

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PostSubject: Re: The secret to smoothness   The secret to smoothness Icon_minitime1Thu Jul 15, 2021 7:37 pm


I like grip puppies.


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JohnA
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JohnA

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PostSubject: Re: The secret to smoothness   The secret to smoothness Icon_minitime1Thu Jul 15, 2021 10:46 pm

I also find myself gripping too tight and my right hand in particular falls asleep. I have a throttle lock for a break. I rode a friends bike with the grip puppies and it was a big difference but I haven’t done that yet as I have sone geegaw grips I don’t want to hide..... and mine is a 4V that I feel is very well tuned due to the help I get here.
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guzziownr
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guzziownr

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PostSubject: Re: The secret to smoothness   The secret to smoothness Icon_minitime1Fri Jul 16, 2021 12:05 am

Oz1200Guzzi wrote:

However I have a vibration around 3,000 rpm and a buzz around 4,000 rpm.

Yep, same here

Quote :
There are a few things that will make a difference: your muffler mount might need some insertion rubber where it bolts onto the frame; different bar ends weights - I found I had to go lighter with the handguards. Perhaps some grip-puppies might also help...

Thanks, Grip puppies are on, I will look at the muffler mount and bar ends. New handlebar has none yet.
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lcjohnny
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lcjohnny

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PostSubject: Re: The secret to smoothness   The secret to smoothness Icon_minitime1Fri Jul 16, 2021 1:50 am

Had to take the heavy (stelvio) weights off mine to reduce the vibration - first time I have encountered that on a big cylinder engine.
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kiwi dave
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kiwi dave

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PostSubject: Re: The secret to smoothness   The secret to smoothness Icon_minitime1Fri Jul 16, 2021 8:07 am

lcjohnny wrote:
Had to take the heavy (stelvio) weights off mine to reduce the vibration - first time I have encountered that on a big cylinder engine.

Experienced the same on an Indian FTR1200.

I fitted Sato Racing 30mm bar end weights (orig 20mm) thinking the longer weights would be made from the same material.  Wrong!  The originals were 124 gm, replacements ones 73 gm.  Yet I experience a reduction in handlebar vibration.  Go figure!
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Oz1200Guzzi
Don Abbondio
Don Abbondio
Oz1200Guzzi

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PostSubject: Re: The secret to smoothness   The secret to smoothness Icon_minitime1Fri Jul 16, 2021 8:26 am

Resonances work in mysterious ways. Sometime lighter is better.
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Steak
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Steak

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PostSubject: Re: The secret to smoothness   The secret to smoothness Icon_minitime1Fri Jul 16, 2021 10:22 am

Here are my secrets to smoothness...

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2012 MOTO GUZZI GRiSO 1200SE

2013 MOTO GUZZI STELVIO 1200NTX - Orange Blossom Special

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Oz1200Guzzi
Don Abbondio
Don Abbondio
Oz1200Guzzi

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PostSubject: Re: The secret to smoothness   The secret to smoothness Icon_minitime1Fri Jul 16, 2021 10:34 am

Yeah Steve, smooth but not that smooth - these from your bathroom cabinet?

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guzziownr
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guzziownr

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PostSubject: Re: The secret to smoothness   The secret to smoothness Icon_minitime1Sat Jul 17, 2021 12:48 am

Quote :
Experienced the same on an Indian FTR1200.

I fitted Sato Racing 30mm bar end weights (orig 20mm) thinking the longer weights would be made from the same material.  Wrong!  The originals were 124 gm, replacements ones 73 gm.  Yet I experience a reduction in handlebar vibration.  Go figure!

That's why I didn't put on the bar ends right away. That will be this weekend's project as the new bar is not threaded/has no insert.

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beetle
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beetle

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PostSubject: Re: The secret to smoothness   The secret to smoothness Icon_minitime1Sat Jul 17, 2021 7:24 am


There's smooth, and then there's soporific.


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Street
GRiSO Capo
GRiSO Capo
Street

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PostSubject: Re: The secret to smoothness   The secret to smoothness Icon_minitime1Sun Jul 18, 2021 12:25 pm

Kenny Gee Whiz.

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Leone
Tanabuso
Tanabuso
Leone

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PostSubject: Re: The secret to smoothness   The secret to smoothness Icon_minitime1Mon Jul 19, 2021 6:10 am

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