bishbashbosh Posted July 26, 2021 Share Posted July 26, 2021 I know there's loads of posts on this but I'm still strugglingu. Bubbles coming out the fuel tank with the fuel. New fuel lines and cable tied on. Its a cheap HSP tank off eBay. Are they just never going to work? What else could cause it? VID_20210726_124037.mp4 Quote Link to comment Share on other sites More sharing options...
bishbashbosh Posted July 26, 2021 Author Share Posted July 26, 2021 Thread cancelled. Been working it out tonight. Answer seems to be fuel hose length. Longer exhaust hose and carb feed hose and she's running way better. More stable fuel pressure with longer exhaust hose and easier to start when hot with the longer carb one. Quote Link to comment Share on other sites More sharing options...
Nitroholic Posted July 26, 2021 Share Posted July 26, 2021 You are also running the fuel inlet to the carb right over the exhaust manifold....and the heat from that won;t help. The longet inlet pipe probably lets it sit further away. A longer pressure feed from the exhaust will also mean cooler gas going in. The bubbles are basically the volatile fuel components boiling off in the pipe Quote Link to comment Share on other sites More sharing options...
bishbashbosh Posted July 27, 2021 Author Share Posted July 27, 2021 All makes sense! Not considered exhaust gas temperature. Thanks for the advice as always. Quote Link to comment Share on other sites More sharing options...
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