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Re:What 900 RPM Sounds like
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TOPIC: Re:What 900 RPM Sounds like
#550724
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Re:What 900 RPM Sounds like 5 Years, 4 Months ago  
Mine is slower for sure. Thanks
 
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#550732
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Re:What 900 RPM Sounds like 5 Years, 4 Months ago  
Just a quick comment for those just 'tuning' in( ). Yamaha specs that the Road Star's idle be between 850, and 950 rpms, when properly setting the PMS. Without the bike being thoroughly warmed up, and the idle in the right spot, the vacuum won't be high enough in the manifold, to make the pilot circuit function correctly...or as good as it should.
I know this is redundant for some, but for those new who are wondering about this, there it is.
 
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#550738
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Re:What 900 RPM Sounds like 5 Years, 4 Months ago  
SKWEARpeg wrote:
[quote]jd750ace wrote:
I tried to force the throttle plate tighter a couple of times with the loud handle, but couldn't get it low enough to lope, but at least it's a point of reference for those of you that never had one.
The EZ Tach clamps over a plug wire, and an iron core induction loop picks up the high voltage pulse in the plug wire to detect the frequency of firing. Mine seems to work with the clamp reversed just fine, although the unit and instructions tell you the pulse shuold go left to right through the coil.



This is the one I have.



I had to turn mine over(so the plug wire lay in the slot further) to get it to work well. I was surprised to see yours working fine right side up I have.</span>


I had to turn mine over(so the plug wire lay in the slot further) to get it to work well. I was surprised to see yours working fine right side up[/quote

The sleeve over the wire must be a noise shield. I have to be on the 7MM part of the wire to get signal.
 
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#550743
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Re:What 900 RPM Sounds like 5 Years, 4 Months ago  
I'm definitely running lower than that once warmed up - Thanks for the heads yup!

N J
 
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#550785
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Re:What 900 RPM Sounds like 5 Years, 4 Months ago  
Ok... I'll likely be showing my ignorance here lol... but don't you need to multiply the number shown by two to get the actual RPM since you are only measuring the firing on a single cylinder? Or does the unit take care of multiplying for you?
 
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#550813
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Re:What 900 RPM Sounds like 5 Years, 4 Months ago  
No.
 
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#550818
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Re:What 900 RPM Sounds like 5 Years, 4 Months ago  
Too way kool !
 
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#550819
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Re:What 900 RPM Sounds like 5 Years, 4 Months ago  
DageonYar wrote:
Ok... I'll likely be showing my ignorance here lol... but don't you need to multiply the number shown by two to get the actual RPM since you are only measuring the firing on a single cylinder? Or does the unit take care of multiplying for you?

The tool is set to two stroke or 4 stroke, and when set to 4-stroke it doubles the number for you automatically to account for 2 revolutions of the crank for each firing.
 
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#550834
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Re:What 900 RPM Sounds like 5 Years, 4 Months ago  
This video and that EZ Tach would have been amazing references for when I was tuning my bike. Thanks for putting this up!

 
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Last Edit: 2012/10/12 11:39 By sswiss.
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#550837
Don Dickinson (User)
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Re:What 900 RPM Sounds like 5 Years, 4 Months ago  
thanks JD - awesome post. i'll have to buy one of those ... i'm an engine tuning light-weight and wasn't even aware they existed.

thanks!
don
 
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