J G and Mary S have got it right.. Walk away!!!!!
look at it with your eyes open
the bike has been warmed up already, it's practically steaming
its wet with water, as it has just been washed, a wet paint job hides blemishes.
The paint isn't original its straight out of a spray can and it's a poor job. the tank has ahuge dent in it, he hasn't even bothered to fill it before painting, hazard a guess he didn't even sand the old paint down, so in a weeks time it is going to lift off and peel like an onion. There is more after market bling than you can warrant all to take your eye of the fact the guy has spent his money on "Flash" not fixing..
Then he starts the bike ( he doesn't even pull the choke out) and it starts first spin..... these engines never started first spin from cold.
The engine is then heard to knock... i suspect that as the tick over is less than 1000 rpm it infact is only running on 3 out of 4 of the cylinders and that knocking. it is not good, though i think it is not from the engine though maybe from the primary drive to the gearbox, this indicates low oil pressure and possibly a worn engine as the tensioners aren't working. the engine is then rev'ed up and it falters ( again indicating a missfire) then the errant cylinder kicks in and the bike picks up to 4000 rpm, where he shuts it back down.
The exhaust is shown , it's covered in barbque paint except for the silencer, that isn't ac problem but is that exhaust bandage i see round the pipes too as they look really lumpy., the end of the silencer is then shown, and is that blue smoke i see. indicating oils seals or even rings..
So you wanna buy this bike? what for a garden ornament or spares for your bike??