Originally Posted by Vincenzo Campisi
All that probably if i wasn't pulling the clutch lever i belive, where its suposed to deattach engine and gear box, huh?
No chain slack btw. And it doesn't happen when doing the same, but shiffting to N after break, it's like even pulling clutch lever when in any gear, the engine and gear box its not 100% deattached. Don't know if its same principle as in cars for cluth, as for motorcycles when operating clutch.
Here is how things are connected.
The clutch disengages between the crankshaft and the gearbox. From the gearbox to the wheel there is no disengagement.
The gearbox has two parallel shafts with cogs on each one. There is the input shaft and output shaft. When the bike is in neutral the input shaft is still spinning with the motor and the cogs are spinning with it but the output shaft is disengaged.
From the output shaft to the wheel everything is still engaged.
A properly adjusted chain has a certain amount of slack. Pull downwards on the bottom run of the chain and is should move even if it feels tight. When the bike is moving the top run of the chain is pulled tight but the bottom run is loose enough that it can move in a wave pattern like a guitar string. You'll sometimes see this if you watch bike races and the camera catches a chain at speed.
The Versys 300 might not have a cush drive but larger bikes also have a rubber cushion built into the rear wheel behind the sprocket. This is another place where there is a bit of backlash.
There is a significant difference between car and bike gearboxes. A car gearbox has everything disengaged until you put it into gear. Then only the relevant cogs slide into engagement. There are syncro rings that allow that to happen without crunching the teeth to pieces. A bike gearbox is 'constant mesh' or 'dog box'. In the bike all the pairs of gears are always meshed. When you change gears you slide them sideways and they lock the input and output shaft together. Most race cars also have dog boxes because they shift faster and more reliably. As mentioned already, there are youtune videos explaining them.
I don't know if this is your first bike or not, but if it is, welcome to the world of bike mechanics. Some people have no interest in knowing what's happening inside the bike, but most riders I know are interested in understanding their bike's internals. I hope what I've written here is of interest.
And another note about the ABS. If you get on a wet grassy surface you can get the ABS to kick in more easily at low speed and become comfortable about what it feels like. Mine often kicks in coming down my steep driveway on a wet morning.