Chinese generator fuel pump
A few weeks back, I posted about my Chinese generator not running off the built-in fuel tank, but running fine off an external test tank I rigged up during the power outage. I have had some t...
Forum Discussion
hbillsmith wrote:PaulJ2 wrote:
Shutting down after running a while with on board tank usually means improper venting of fuel tank cap. I assume you have checked this out already?
Not sure what you mean?
If I'm running with the on board tank, the system bypasses and does not use the external tank at all. Whatever venting of the fuel tank cap is unchanged. The method for adding Extended Run using an External Tank DOES NOT alter the fuel tank cap at all.
Perhaps you are thinking about the method used to add extended run to Yamaha and/or Honda inverters. There are extended run options for those brands that include a modified fuel cap. They can work that way because both Yamaha and Honda have built-in fuel pumps.
When using the Champion's on board tank, it operates as if unmodified and utilizes the default fuel gravity feed from onboard tank to carb. The Extended Run option inserts a vacuum fuel pump and a why connection ahead of the carb. The Champions Fuel Selector knob whose default function is "On" and "Off" assumes a different role and what was pre-modified "On" becomes "On Onboard Tank" and what was pre-modified "Off" becomes "Off for External Tank Use".
If I'm missing something here, I'd to know more.
He's answering the OP, not yours and suggesting that improper venting of the original tank could cause his issue.
OP, I assume you tried running with the cap off?
