Odyssey Posted December 10, 2020 Share Posted December 10, 2020 Hi all, I want to renew my fuel lines from tank to water separator.... Do I need a specific hose type? (Obviously one suited for petrol!) it’s for 300hp engines so not sure if I need high pressure lines? it’s only a short run of about 1m... Its one of those things where it ain’t gone yet but I’d rather replace before it fails! Quote Link to comment Share on other sites More sharing options...
Andy135 Posted December 10, 2020 Share Posted December 10, 2020 What fuel line does Yamaha recommend for your engines? They've likely specced it for the max fuel flow that your engines need. Quote Link to comment Share on other sites More sharing options...
Odyssey Posted December 10, 2020 Author Share Posted December 10, 2020 That’s what I’m struggling to find.... It can wait until I’m next down there to get it off existing lines Andy135 1 Quote Link to comment Share on other sites More sharing options...
suzook12 Posted December 10, 2020 Share Posted December 10, 2020 dash 8 minimum I would say JonC 1 Quote Link to comment Share on other sites More sharing options...
JonC Posted December 10, 2020 Share Posted December 10, 2020 Is the fuel hose any different to car hose? By car standards the engines aren’t massive. Quote Link to comment Share on other sites More sharing options...
suzook12 Posted December 10, 2020 Share Posted December 10, 2020 2 hours ago, JonC said: Is the fuel hose any different to car hose? By car standards the engines aren’t massive. Yes its the same type but has to be of a suitable bore to flow enough for the horsepower. 300hp prob somewhere in region of dash 8 (12mm) Quote Link to comment Share on other sites More sharing options...
Gordmac Posted December 11, 2020 Share Posted December 11, 2020 Carb or injection? If injection you need high pressure hose after the injection pump. I used to use calor gas hard piping on my competition cars, 8mm maybe 10mm from memory. Never quite had 300hp though! If you have space the bigger bore the better really. I would think the size will be dictated by the fitting size at the tank and engine ends though. Quote Link to comment Share on other sites More sharing options...
Odyssey Posted December 11, 2020 Author Share Posted December 11, 2020 EFI injection. Ill see what is already fitted as waiting for new water fuel separators to turn up, will get numbers off fuel lines abs sort it then 🙂 Quote Link to comment Share on other sites More sharing options...
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