thanosgp
New Member
Sorry to hear about your problems. I had similar gremlins with random stallings and heavy vibrations at 3-4000 rpm, or above 120-130km/h.I do not have the ability to test fuel pressure myself but I spoke with a friend who is more mechanically smart that myself with motorcycles and he mentioned he might have some sort of inline tester that goes between the fuel line and fuel rail. Trying to coordinate that with him. At one point my attention was focused on a potential fuel pressure problem and I even did some research to determine if the bike had a fuel pressure regulator but most of my searches only returned the fuel pump sending unit. Replacing the fuel pump has always been in the back of my mind just trying not to go there quite yet.
Like you, nothing cured my worries until i changed the fuel pump.
Upon turning over the engine the pump would hum and sound healthy ,but the unit wasnt. Please do not use the Honda part cause its very expensive.In fact ,it had the Mitsubishi logo on it,indicating a quality item.My mechanic found a similar automotive pump for 60 euro and since then it works like a charm. The access to the pump thou is a p.i.t.a. Hadnt heard another pump fail except of a guy in germany with an integra 700 (same bike but selling with different bodyworks as a scooter)who paid aprx 500 euro parts and labor .
I had reached the point of wanting to sell the bike. Glad i didn't. Wont part with ,it unless it lets me down multiple times.
Greetings from Greece,hope the sution is near.
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