If you can't see light through it, replace it. Just like any car filter. Cleanable ? no.
--- On Mon, 3/30/09, jeff scott <[email protected]> wrote: From: jeff scott <[email protected]> Subject: [Nighthawk Lovers] Re: 1984 Nighthawk 700s K&N Air filter To: [email protected] Date: Monday, March 30, 2009, 11:39 PM How often do the original type (U shaped) filters have to be changed or are they cleanable.. and if cleanable how?Also i have a couple pics of the '85 NH i bought and would like to have them put on the group home page... how do i get them put on there? Have a great day ~ J. Scott groups home page... how do From: Dennis Hammerl <[email protected]> To: [email protected] Sent: Monday, March 30, 2009 11:16:55 PM Subject: [Nighthawk Lovers] Re: 1984 Nighthawk 700s K&N Air filter No, at first. It becomes an asset later. The K&N is cone shaped and installed, the small end is down. That should make you wonder. FYI: the original is a paper pleated that is "U" shaped. --- On Mon, 3/30/09, stanley/ Randolph <[email protected]> wrote: From: stanley/ Randolph <[email protected]> Subject: [Nighthawk Lovers] Re: 1984 Nighthawk 700s K&N Air filter To: [email protected] Date: Monday, March 30, 2009, 3:09 PM Dennis, Your question piqued my curiosity. Does the shape of the filter make a difference in the performance? Stanley From: Snookfever <[email protected]> To: Nighthawk Motorcycle Lovers! <[email protected]> Sent: Sunday, March 29, 2009 2:55:57 PM Subject: [Nighthawk Lovers] Re: 1984 Nighthawk 700s K&N Air filter Just reread (destructions) I was supposed to put snokel back on and was not!!! Rain stopped! WIll do it right abd get back to you. Thanks again for your patience... On Mar 28, 12:07 am, Dennis Hammerl <[email protected]> wrote: > Find anything in the slow jets ? How about the brass tubes above the mains ? > At 3~4K you start to depend on the next circuits to supply fuel. Since these have enricheners and not chokes, you can add some choke to make it run richer. Now if that helps, increase the main jets to 120. You don't specify if the stumble is just that or it is popping. ?? A pop is a good indication of lean. If it truly is that lean, you could'nt get it to go above 5k at all. Getting it up there slowly means to me (IMHO) that the air speed is too slow to pick off fuel. That's where the choke addition comes in. If that makes it worse, let me know. A high air flow filter actually causes a slowing of the flow. Untill they repeal the laws of physics (Obama just might) high speed air works best. You do have the lid on the air box ? With the snorkle ? I hope so. A complete air box is vital. > One more thing, is this K&N cone shaped ? > > --- On Fri, 3/27/09, 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: Friday, March 27, 2009, 12:56 PM > > 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 -- 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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