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