15-04-18, 08:21 PM
It's most likely cam chain noise not valve noise. Fazers have automatic cam chain tensioners and the tensioner sometimes takes a while to advance and take up the slack in the cam chain which creates the noise you're hearing. It is generally normal and they all have some level of that noise. If you're lucky that's all that is happening and you just ride on and the tensioner will advance by itself and the noise will go away or you might be unlucky and the cam chain is worn and the tensioner has already advanced as far as it can and the chain needs to be replaced. You can either ride on and keep listening if the noise is getting worse or if it goes away or you can take the tensioner out and visually inspect how far it has advanced by counting how many notches of adjustment are left on it and that will tell you if the chain is worn out. If you do have to replace the chain there's two way to do it one is to use an endless chain but this requires a full engine strip, the other is to use a rivet chain where you attached the new chain to the old one and pull it through the engine and rivet it together.