i guess you MOTOrBikE isnt working very well!,
Well!!! firstly you need to find what the problem is !! so its going to be out of these things.
ELECTRICAL - wires, spark, coil. so on
FUEL - carby, fuel lines, intake.
MECHANICAL - pretty much everything that moves!!
you have to watch this video ! and find out what the problem is.
Step 1: ALRIGHT PEOPLE!!! Is It the Electrical?
Step 2: IS IT THE FUEL??????
yes? - maybe something has broken or built up dust and clogged the pipes for the fuel to go through
no? - maybe the fuel has gotten old and clogged up the carby and pipes messing everything up.
signs there is a fuel problem is the bike sputtering, stalling, very little power and hard to start.
then you might have to adjust the carby or fuel system, and believe me this video is easily the best video on youtube to fix that problem so please watch and learn to adjust.
Step 3: Is It Mechanical ????
i feel sorry for you !!!
ok is it a clunk clunk clunk? like metal hitting metal *i cringe at the thought of that noise*
well 90% that will be because of the oil, either not getting enough of it or to dirty. so CLEAN AND CHANGE YOUR OIL!!
sometimes if you stop the noise straight away your engine will be on other times it just makes a pretty little mess of ground metal and evilness.
then you have to look in buying a new engine, or doing a complete rebuild.
although sometimes its not that bad, sometimes if someone has put the engine together wrong it could be the timing is out of sync. so that needs to be fixed !
this is what i have had to do on some of my bikes :/ this is how much you have to pull it apart, watch this video !