Quote:
Originally Posted by Leonardo Lupo
Hey,
I have a very similar problem. Just did a carb rebuild and didn't fix it. Mine isn't to bad and bike runs fine in higher rpm.
Mine also got worse! I think it turned out that my fuel tank diaphragm dried out and stuck together, as pulled it apart, unstuck it and it works. Problem is that that tank valve never really worked. Could I grab an expert opinion on this:
on my bike:
When the screw is horizontal (pointing to "ON") and there are no hoses, fuel exits the large port on the valve.
When the screw is pointed down (pointing to "PRI") and there are no hoses, fuel exits the valve. Can't remember which port(s).
I leave my bike on "ON" as this seems logical due to its name. I read above that this valve could cause problems, is that the case?
Cheers  |
The spring is for your petcock diaphragm. It keeps petcock closed until vacuum is applied to small port to open it.
In ON position, fuel should not flow until you apply vacuum to small port. Put spring back in petcock. Otherwise you risk dripping petrol into engine and hydrolocking it.