Please. I need some opinions on this.
When I got the big bore kit on the Gy6, I was getting a tapping noise coming from the head. ting ting ting ting... only at idle.
I thought it could be the valves. I checked, and I can get a .004 feeler in with slight to moderate tension and a .005 won't fit. Those appear to be right.
I checked my timing. It appears to be correct too. See below:
The lines on the cam aren't perfectly lined up, but if I were to move it one tooth up on the chain, it's really out of whack. Besides, it runs and I've ridden it around the block... not super fast or anything. I figure if the timing was bad it wouldn't run well at all.
I start looking around and I notice that the rocker arms have some side to side play. see below:
I can wiggle that rocker side to side, same with the bottom, and that could be causing the noise.
So if it is that side to side rocker, is that bad? It makes sense that the big bore would be shaking it alot more than before... so maybe that noise is ok? I'm not sure. It only makes that noise when idling.
The cam is new, so I doubt it's the bearing or anything. Not sure. Could it be just funky since I'm putting the Taida parts on a generic GY6?
Any opinions from the masters of the webernet ruckus society?
If I don't find anything, I'll put it back together and see what happens.