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Old 11-03-2008, 10:09 AM   #51
alantf
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Re: GZ Top Speed

The GZ250 road test, on the Suzuki site, suggests that due to the vibration that is common to this bike at high speed, the vibration be used as a built in rev limiter. When the vibration gets too uncomfortable to endure, simply close the throttle until it becomes comfortable again, and - hey presto - that is the top speed of your bike, without overstraining the engine.
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Old 11-03-2008, 10:15 AM   #52
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Re: GZ Top Speed

The road test, on the Suzuki site, suggests using the vibration which is common to this bike at high speeds, as a rev limiter. When the vibrations get really uncomfortable, close the throttle until it becomes comfortable again. This will give you your top speed without overstraining the engine.
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Old 11-03-2008, 10:46 AM   #53
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Re: GZ Top Speed

Quote:
Originally Posted by alantf
The road test, on the Suzuki site, suggests using the vibration which is common to this bike at high speeds, as a rev limiter.
I think this is ......looking for the right word......pretty lame. :roll:

The current engine design has a counter-balancer, for no other purpose than to reduce the vibrations. The GZ engine vibrates LESS than a lot of twins.

After a year and about 4 thousand miles, I have yet to feel a vibration that is really "uncomfortable".

Then again, the engine does have a rev. limiter so using the vibration "method" won't really hurt anything either.

I think the premise is invalid. Some people would never ride the bike 'cause the vibrations are "uncomfortable" at idle !!

PS Alan, why are your posts appearing twice ??
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Old 11-12-2008, 11:37 AM   #54
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Re: GZ Top Speed

Jordan,
You said you would bet your balls on an honest 85mph as top speed. Better go ahead and have all the children you want to. I'm not interested in your deal, but I'd take the bet.
Mine runs up to about 75, maybe 80 under ideal conditions.

I just posted under the Geneal post that I have a friend that is a national maintenance supervisor. I told him my engine started screaming at 60mph and was really screaming at 70+mph. He said that all these engines have rev limiters built in and there was no way to over rev, especially in the top gears.
I use synthetic oil as per his recommendations. But, oddly enough, he says that the Amisoil oil is simply too slippery as (unlike a car) the same oil lubs the engine, transmission, and clutch. He worked on a slipping clutch that had nothing wrong. They put in normal oil and it stopping slipping.
Chris, Retired in Atlanta
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Old 11-12-2008, 02:26 PM   #55
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Re: GZ Top Speed

Are you betting it won't go 85 or that it will, or that it will go more than 85?
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Old 11-12-2008, 02:36 PM   #56
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Re: GZ Top Speed

That's a first. A clutch slipping due to amsoil sounds very strange. I wonder if the mechanic had the full story. Quite possibly the owner of the bike added a friction molifier that caused the slipping and failed to mention it. Never read about a slipping clutch before even on far more powerful bikes using Amsoil.
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Old 11-12-2008, 05:59 PM   #57
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Re: GZ Top Speed

Quote:
Originally Posted by Water Warrior
That's a first. Never read about a slipping clutch before even on far more powerful bikes using Amsoil.
I don't find it too hard to believe. With everybody else jumping on the bandwagon, I'd bet that Amsoil is making an "energy conserving" oil or 3 these days too.

Not everybody has the benefit of the EXCELLENT coaching that is available here!! :roll: :biggrin:
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Old 11-24-2008, 07:54 PM   #58
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Re: GZ Top Speed

They're appearing twice. They're appearing twice. because the damned vibrations. because the damned vibrations are making the computer do strange things as I type this as I ride merrily along!
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Old 11-24-2008, 10:33 PM   #59
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Re: GZ Top Speed

[quote=Easy Rider]
Quote:
Originally Posted by "Water Warrior":1yb4zpcw
That's a first. Never read about a slipping clutch before even on far more powerful bikes using Amsoil.
I don't find it too hard to believe. With everybody else jumping on the bandwagon, I'd bet that Amsoil is making an "energy conserving" oil or 3 these days too.

Not everybody has the benefit of the EXCELLENT coaching that is available here!! :roll: :biggrin:[/quote:1yb4zpcw]

Good point. An energy conserving Amsoil product may have been used in the bike.
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Old 12-07-2008, 07:40 PM   #60
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Re: GZ Top Speed

I get mine to 80 easily. I am 145 pounds. With a windshield that i think makes a difference.
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