Throttle vacuum sync help - Kawasaki Versys Forum
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post #1 of 3 (permalink) Old 08-26-2017, 06:18 PM Thread Starter
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Throttle vacuum sync help

I would like to adjust my throttle vacuum sync and I'm not sure what's tools to buy for the job.
I know that I need some sort of manometer to check the vacuum, I saw this one here Carbtune Pro 2-column and Toolpouch
But there are also many digital ones on ebay for less than half the price.
Other than that what else would I need?
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post #2 of 3 (permalink) Old 08-27-2017, 08:15 AM
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Many styles

On Ebay right now Carbtune Pro 4 Column Motorcycle Carburetor Sync Manometer Vacuum Gauges

I have the Carbtune, there is a 2 channel version with a slight savings, since I wasn't sure if I ever would need a 4 channel, I bought the 4 channel, my brother has a old Honda 750 4 , many new bikes including the V1000 have more than 2 cyclinders.
I have a thread that explains that valve shim and vacuum sync are closely related.If your vacuum sync is off, good chance you have a tight valve, unless this bike was pre-owned or you screwed with it previously.

Instructions in How To

One thing I failed to mention, is Carbtune is liquid free, many use liquid and a accident, like a short in your regulator, the magic smoke escapes and your done, same applies to these other gauges. Initially I made my own U tube manometer using transmission fluid and solid copper inserted at the couplings to act as a damper, crude but it works, but no comparison to Carbtune Pro.

Last edited by onewizard; 08-27-2017 at 09:37 AM.
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post #3 of 3 (permalink) Old 08-27-2017, 08:38 AM
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Recently did mine. There was a big improvement in smoothness with it.

Carbtune is what i have. Works great. You also need a set of metric allen keys NOT on a fold out handle. T handle ones are ideal.

I purchased a Motion Pro Carb adjust tool in place of the Kawi tool mentioned in the manual. A small slot head screw driver works better, especially if it has a very short/stubby handle.

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Last edited by twowheels; 08-27-2017 at 08:55 AM. Reason: Edited for clarity
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throttle vacuum, tps

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