Hello,

I am running a P5 with a C6 plug. My problem is priming the tank after it has run dry. If I run out of fuel and refil the tank, I block the exhaust port and open the carb for the fuel to refil the line however the momnet I let go, the fuel shoots back into the tank. I have to keep my hand on the exhaust for a long period until it starts up again. Once the air is out, it runs perfect. You can see when i prime how the fuel and bubbles bounce up and down the fuel line as it turns over the starter box. If I diconnect the fuel line from the carb and hold the exhaust the line pressures immediately, I then pinch the line and reconnect the carb but as I let go, the fuel shoots back into the tank. The motor runs around 120 / 130 degs C (250-265F) and im running 25% nitro. My other motors used to prime fast and never had this issue before. Any ideas?