Ok, I wired the slow jets,put the K&N air filter in. I found some particles in the bottom of the carbs so I added an in line fuel filter.
It ran fine at idle. Take off was ok. When you open the throttle from 3k to 4K it sputtered, could not get to 5 K and beyond without very gradual throttle turn. Plug Test: Cleaned number 1 and 4 plug and replaced. Both were brown on one side and white on the other Pulled plugs after 1 mile ride and no real color change from cleaned look. What now? Glen On Mar 22, 6:38 pm, Dennis Hammerl <[email protected]> wrote: > If you can't pass a wire through it, it isn't clean. That's what I mean. The > wire size is .0011" for a #35 slow jet. I don't care if you can blow through > it, see through it,etc. If a .0011" wire doesn't pass through it, NG. > If you want it to work with a K&N, test that way. > > --- On Sun, 3/22/09, Snookfever <[email protected]> wrote: > From: Snookfever <[email protected]> > Subject: [Nighthawk Lovers] Re: 1984 Nighthawk 700s K&N Air filter > To: "Nighthawk Motorcycle Lovers!" <[email protected]> > Date: Sunday, March 22, 2009, 2:19 AM > > What do you mean by did I wire out the slow jet? I soked them in > acetone and blew them out with compressed air. I pulled number 4 plug > it was light tan on the insulation with some black on the threads. > Should I run the plug test with the stock filter or the K&N? > > On Mar 21, 3:03 pm, Dennis Hammerl <[email protected]> wrote:> Did you wire > out the slow jet ? And yes, I have a method of enriching a > > K&N filter. I have one in one of my 700s and it required no changes but I > did a neat stunt and gave it more bottom end. My 700s pulls hard from 2K up. > Made huge difference for me. I granny around a lot and spend too much time in > traffic. Less shifting now. To understand it, you need to grasp air flow > dynamics. The British did some good research on it back in the 50's. Get it > to work right first. > > > --- On Sat, 3/21/09, Snookfever <[email protected]> wrote: > > From: Snookfever <[email protected]> > > Subject: [Nighthawk Lovers] Re: 1984 Nighthawk 700s K&N Air filter > > To: "Nighthawk Motorcycle Lovers!" > > <[email protected]> > > > > > Date: Saturday, March 21, 2009, 9:57 AM > > > I am very meticulous so I completely tore down the carbs and cleaned > > evey single part individually including pilot, needle,main jets, > > choke, every part. I was careful to put the same part back in the > > same carbs. I also disasembled and cleaned the petcock and screen. I > > blew every part dry with compressed air, I replaced O-rings and > > reasembled. The factory air filter is relatively new. > > > I installed the K&N as instructed and removed the snorkel flipped the > > lid and installed. With the factory air box it idles perfect, but does > > hesitate just a little at take off. I will perform the spark plug > > check and get back to you, but when I pulled one they were lite > > colored. Looks like she is running a little lean. If that is the case > > what do you do to enrich? > > > Thanks for the help > > > On Mar 20, 12:55 am, Dennis Hammerl <[email protected]> wrote:> > > Above 5k it runs mostly on the mains. I expected you to say right off idle > > > when pulling out. If you really cleaned the carbs, how ?> Now to do a > > defined search for your problem. Ride the bike at the problem > > > RPM for several minutes.put up with all it's actions. Ride it for at > least a > > half mile that way. Pull the clutch and shut it down with the kill switch. > Pull > > over and remove some plugs. White ? brown ?, black ?> Take a picture > > and forward. A plug reading, done right will indicate the > > > nature of the problem.> From what you tell me about the tank rust > > problem, I suspect the supply is > > > > > > > poor to the carbs. The original air filter (especially if it was somewhat > dirty) > > would be a compliment to a poor delivery system. The K&N, passing more > air, > > would not. In other words.. lean, white plugs. Main jets are not likely to > ever > > clog, but with an inadequate fuel supply the condition you describe would > be > > expected.> One last point for this post, are you installing the K&N > with the > > > air-box lid ? Very tempting to do. It sounds neat, but runs poorly. > > > > --- On Thu, 3/19/09, Snookfever <[email protected]> > wrote: > > > From: Snookfever <[email protected]> > > > Subject: [Nighthawk Lovers] Re: 1984 Nighthawk 700s K&N Air > filter > > > To: "Nighthawk Motorcycle Lovers!" > > > <[email protected]> > > > > Date: Thursday, March 19, 2009, 1:13 AM > > > > Dennis, > > > > Withe the K&N It is not responsive,bogs down when accelerating. > I do > > > not remember the exact RPM range, but I think above 5K so maybe > > > midrange. I discovered rust in the fuel tank (fuel on pant leg) a > few > > > week after I got the bike. The carbs looked like they were painted > > > red with the rust particles. I redid the tank with KBS coatings and > > > did a complete carb breakdown and cleaning and the carbs looked > great. > > > I sinked the butterflies manually with the stem of a micrometer and > it > > > ran great. > > > > With the OEM filter It does take a few minutes to warm up or it will > > > want to die at take off. I have a shop manual and reset the pilots > the > > > same number of turn as they were set from the factory. > > > > On Mar 19, 12:27 am, Dennis Hammerl <[email protected]> > wrote:> > > > If you can describe what crap runs like, maybe I can help. By themselves, > > > > K&N filters do not affect anything. Great replacements (sorry > Stanley) > > > Installed properly, they require no rejetting. Mine works fine. > > > > > --- On Wed, 3/18/09, Snookfever <[email protected]> > > wrote: > > > > From: Snookfever <[email protected]> > > > > Subject: [Nighthawk Lovers] 1984 Nighthawk 700s K&N Air > filter > > > > To: "Nighthawk Motorcycle Lovers!" > > > > <[email protected]> > > > > > Date: Wednesday, March 18, 2009, 11:14 PM > > > > > I bought a K&N air filter, but it makes the bike run like > crap. > > What > > > > do I need to do the carbs? > > > > > Looking for a nose cone for my 700S, where can I find one? > > > > > Sincerely, > > > > > Snookfever2- Hide quoted text - > > > > - Show quoted text -- Hide quoted text - > > > - Show quoted text -- Hide quoted text - > > > - Show quoted text -- Hide quoted text - > > - Show quoted text -- Hide quoted text - > > - Show quoted text - --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. 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