Oh, yes, I do know what you mean. When it's cold, I sit on my NH with the choke lever down and wait for the revs to rise before pulling out. Taking off the choke too soon always causes complaints.
But this was a far, far different case. With the choke fully closed, it would start ... just barely. And it would run like that for some time, but whenever you turned the throttle, even a teeny amount, the bike would just die, immediately. Gas was coming in at a trickle because of the way the choke works on these Nighthawks; but nothing through the jets. What was REALLY exciting, was that after finally replacing the carbs with the help of nighthawk newsgroups, I simply turned on the ignition, pulled the choke, and hit the starter button, and there she was, purring. like a heart transplant. I love the sound of Nighthawks at idle. Matt On May 25, 8:17 am, "Allen Thomas" <althomas...@gmail.com> wrote: > I think they all need to warm up with the choke on before you can give them > any throttle. Backing out the pilot jet screws to 3 turns helps. > Sent via BlackBerry by AT&T > > > > > > > > -----Original Message----- > From: Matt Temple <heuris...@gmail.com> > > Sender: nighthawk_lovers@googlegroups.com > Date: Tue, 24 May 2011 19:17:30 > To: Nighthawk Motorcycle Lovers!<nighthawk_lovers@googlegroups.com> > Reply-To: nighthawk_lovers@googlegroups.com > Subject: [Nighthawk Lovers] Here's a blast from the past... on carbs for my > '85 CB650sc > > It was December, 2007, and the Nighthawk I'd bought was in the garage > and exhibited the problem I'd mentioned -- Idled with choke full on, > totally died when given any throttle. The only group around that I > could find then was the Yahoo Nighthawk group, so I went to find my > early posting over there. (I can't believe I've had my Nighthawk for > that long. ) > > The explanation given to me was: > > "You're going from lean to leaner and exceeding the stoichiometric > requirements for combustion." > > (In short, if the main jets are blocked when you open the throttle, > you're increasing the amount air, without increasing the amount of > fuel ... so, no bang. -- that was from Lou Medina) > > Matt > > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To post to this group, send email to nighthawk_lovers@googlegroups.com. > To unsubscribe from this group, send email to > nighthawk_lovers+unsubscr...@googlegroups.com. > For more options, visit this group > athttp://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 nighthawk_lovers@googlegroups.com. To unsubscribe from this group, send email to nighthawk_lovers+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en.
