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no ignition timing is done by distributor setting
and other is tappet adjustment
There are two types of idiots 1.Who thinks the world revolves around him 2.Who makes fun of other so he can be Respected
nop they are alltogather different
still a bit confused actually i was also thinking like the ignition timing has to do something with electrical system and valve timing has to do with the way or in other words the time duration for which the valves opens and closes,, but your replay has reminded me one more confusion i think tappet adjustment or valve clearance is another thing where we just check the clearance at the tdc of compression,,
actually my bike is running very poor and i think there is something wrong with valve timing it has lost power,, since the mechanic checked the ignition timing with some sort of a device that was flashing light on the fly wheel and was attached to spark plug,, he told me ignition timing is ok,, just to confirm did he checked the ignition timing? actually i asked for valve timing to be checked ,, and he did it so i assumed that both are same thing but was confused,,,
I guess ignition timming is adjusted through the timming chain inside the engine head.. and valves are adjusted through tappets.
Its my theory and my knowledge bt... i guess Ignition timming is where wud b the piston's position when plug wud spark.. And valve timming is where and how much opened the valves shud be at various positions of piston.. they shud all sincrinize...
4 stroke engine has a 4 cycles.. piston comes up - pushes the exhaust gases out of chamber, piston goes down - fuel valve pours fuel in... Piston comes up - spark and ignition- u get the power stroke.. Piston is pushed down. 4 cycles.. they shud all sicronize in timming...
Thats all my logical guess confirm it from some other sources..
Ignition timing, in a spark ignition internal combustion engine, is the process of setting the time that a spark will occur in the combustion chamber (during the compression stroke) relative to piston position and crankshaft angular velocity.
In a piston engine, the valve timing is the precise timing of the opening and closing of the valves.