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Old 12-11-2008, 10:49 AM   #1
Prodigy
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sync throttle bodies

How can you tell if your Throttle bodies need to be adusted or sync up iv'e heard of this but never had it done to my bike. What kind of performance gains can be expected?
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Old 12-11-2008, 11:38 AM   #2
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ttt
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Old 12-11-2008, 11:40 AM   #3
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google ??
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Old 12-11-2008, 11:44 AM   #4
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Im at work with my laptop on my desk with MH open dont have time to play on google and besides I would rather get real opinions from track guys or price qoutes from shops on here.
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Old 12-11-2008, 11:51 AM   #5
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Full throttle gains are zero, I think. It is more to be sure that at very slight throttle openings one cylinder doesn't pull harder than another. Off-synch leads to surging as one cylinder runs rich or lean as it gets more or less air, but the same fuel (in a FI bike). Small throttle input results in driveline or hesitation.

I have a four bar mercury gauge that allows you to gauge the relative vacuum. If one throttle body betterfly opens more than another it reads higher pressure, less opening, more pressure as the engine is sucking harder to pull air through.

It takes about an hour to do it, if you have the adapters for the intake boots and the right hoses.

Unless your bike hesitates or runs erratically at low speeds, to the point it bothers you, then you probably are still in synch.

(I am not a trained mechanic, so this is just my best recall of what I've heard in the past, and the solution to my own problems)
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Old 12-11-2008, 11:58 AM   #6
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I think jordos old bike must have had that problem im just experiencing alot of bogging problems bike almost wants to die when I give it gas under a load
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