Hi guys, thanks a lot for such educational answers. Now I am a bit more confused than yesterday. This morning I checked again for leaking. Nothing. Engine, parts, and garage floor all very clean. I went to start the same way I always do, no choke (at least not this time of the year), and no gas. It tried to fire up a couple of times, but not quite there yet. I had to give it a bit of gas and then went on. Just a bit rough at the beginning, but mostly from being cold. Putted my gear on and the bike is idleling perfect as usual. Took it outside and I turned off because I forgot something inside the house. Came back, hit the start, and fire up without giving any gas. Lucky I guess. Came to work, and I did not experience any of the symptoms from yesterday. Pulled over in the parking lot. Turned off. Hit start and it fired up immediately as usual. Tried 4 or 5 times consecutively. The same. The problem is gone.
Now, according to the general consensus, the diaphram in the petcook could be responsable for this issue. How does this scenario fits now? I actually was thinking what I have done differently recently, and one thing is that since my speedometer cable broke, I cannot calculate the gas level, and thus now I wait until I am empty and I have to change to reserve to go to the station and fill up the tank. The difference now is that I am using the petcook more often, swiching between tank and reserve. Before, I pretty much never touched it. Could it be also that going to reserve I just picked up some dirt deposited at the bottom of the tank, and then when to the carbs. I guess I could try Seafoam as well, just as a sanity check. I will let you know how it behaves when I get off work. Thanks again for your opinions. Javier. On Thu, Aug 26, 2010 at 8:55 AM, Kurt Nolte <[email protected]>wrote: > After that, start wondering about float valve seats. Well, if it still > gives you problems after you've made sure that the carburetors weren't > at some point adjusted for a slight fuel leak into the intake, that > is. > > On Thu, Aug 26, 2010 at 8:39 AM, [email protected] > <[email protected]> wrote: > > I agree with replacing the petcock diaphram, i would even go as far to > not check it, just replace it.... After that look at your vac lines, then i > dont know after that.... > > > > Good luck > > > > > > -----Original Message----- > > Date: Thursday, August 26, 2010 6:40:24 am > > To: "Nighthawk Motorcycle Lovers!" <[email protected]> > > From: "jaybird248" <[email protected]> > > Subject: [Nighthawk Lovers] Re: Fuel related problem > > > > Javier, the reason you have to give it lots of throttle to start is > > that it's flooded. Opening the throttle lets in more air, diluting the > > accumulated gas to the proper mixture. Then the engine can fire up. > > > > I also had this symptom due to a torn petcock diaphragm. > > > > Jay S > > 92 NH750 > > South Florida > > > > On Aug 26, 5:39 am, jaybird248 <[email protected]> wrote: > >> Absolutely check the petcock, as surfswab says. These symptoms are > >> exactly like what happened on my bike and it turned out to be a small > >> hole worn in the diaphragm. When I replaced the defective unit, not > >> only did the symptoms clear up, my gas mileage went from the 40s into > >> the 50s. > >> > >> Jay S > >> 92 NH750 > >> South Florida > >> > >> quoted text - > > > > -- > > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > [email protected]<nighthawk_lovers%[email protected]> > . > > For more options, visit this group at > http://groups.google.com/group/nighthawk_lovers?hl=en. > > > > > > > > -- > > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > [email protected]<nighthawk_lovers%[email protected]> > . > > For more options, visit this group at > http://groups.google.com/group/nighthawk_lovers?hl=en. > > > > > > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<nighthawk_lovers%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/nighthawk_lovers?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en.
