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 - --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
