Originally Posted by KayAitch
Thanks for the reply Reino.
When you say "brown line" do you mean the gunk/oil? The gunk I found did extend to the outer edge above the exhaust port. Only found it after taking the head off.
The piston has a nice amount of black carbon on top.
I have been riding with the tank cap loose and with a fuel filter in the line. Any links to a relatively straight forward carb clean instructions would be much appreciated. The carb was cleaned and adjusted not too long before the top end rebuild.
How about heating the gasket on a stovetop, DIY style? Is that a no no? I have ordered a new gasket online because I've read mixed opinions on reusing copper head gaskets. I originally installed the new head gasket in the rebuild without any heating and no adhesive of any kind. I'm also going to try and check the top of the barrel, under the head for warpage.
Sucking air could be from anywhere, right, including the bottom end?
Thanks for helping out a noob
You have a leaking head gasket, did you torque everything correctly?
Carb cleaning is simple, just remove the float bowl and make sure all holes are clean and there is no gunk to obstruct movement of the float. also make sure the emulsion tube is clean. For terms google the ones i used to see exactly what i am talking about.
here is a video on carb cleaning, just watch the rest of the video's
The head gasket must be heat up until its red hot for it to work, so you are going to need a torch.
Here is a link to a video of a guy annealing copper
Best of luck, hope you get your bike sorted.