I'm experiencing vapor lock on my 600. syptoms: Hot day heavy work,stumble,let it cool down (idling,or set,or switch to lower gear) then good for anther half hour. When completly stall, set, then hear a gurling burp, then starts up.
87 octane with alchol.
Is there a adaptor to go on exhaust manifold to go to a vertical exhaust (get rid of muffler under heat shield and gas tank and fuel line.
Other suggestings of possible problems, to look for?