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What does out of scynch carbs feel like?

C

Cipher

Forum Sage
I have an odd pulsation that seems to come from the left cylinders at certain rpm ranges.
It's like the machine is struggling to get air but it smooths out as the throttle opens wider.

I am going to have to bite the bullet and do the sync. Happily, the Pound is hurting and I can get a morgan apparatus for a bargain price.
Tecmate makes a very pricey electronic unit for about a grand Canadian but that's way too much for me to afford,
 
"Happily, the Pound is hurting and I can get a morgan apparatus for a bargain price."

good thinking! Help us out here... What bike is this? And put in in your signature for later posts.
 
Cipher said:
I have an odd pulsation that seems to come from the left cylinders at certain rpm ranges.
It's like the machine is struggling to get air but it smooths out as the throttle opens wider.

I am going to have to bite the bullet and do the sync. Happily, the Pound is hurting and I can get a morgan apparatus for a bargain price.
Tecmate makes a very pricey electronic unit for about a grand Canadian but that's way too much for me to afford,
Click to expand...

There has to be someone in Toronto with one...or near enough you could ride out in an afternoon
 
well my carbtune is enroute. Very pleased.
I Also got a set of Paradigm monitor 7s a large centre and a powered woofer.
Its a good day.
 
I'm not sure you can feel out of sync carbs. Unless they are to the point misfiring or bike just runs bad overall. If a cylinder drops out (stops running) you can tell for sure. I have rode my bike with a bench sync and after using the tool on it. Could not tell the difference.
 
My bike had some pretty serious vibrations (at/above 5,000rpm) which disappeared after a carb sync.
 
You may or may not feel vibration, depending on how badly out of sync. CV carbs are a tad difficult to bench sync accurately as very minor throttle butterfly opening differences are hard to detect or measure in any way. Best to always sync your carbs if they are unknown origin or you have had the rack apart.
 
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