I removed the pilot screws and I was able to access 1 of the passages that is directly under the pilot screw inside of the chamber but there are also four other holes of the exact same diameter that I could not reach(they are about an inch further inside of the carb chamber). I was wondering how I could reach these to clean them out.
PO? If you are talking about the guy who sold me the bike I trust him....he is my brother in-law. I don't think he was giving me any bs. It is just the very tip of the pilot screw that is broken off and I can still screw it in all the way if I put enough pressure on it with my thumb. On Jan 7, 4:29 pm, "Allen Thomas" <[email protected]> wrote: > The passages are accessed by removing the pilot screws so it sounds like you > got them. However if the points of those screws are buggered up they won't > regulate fuel properly, sound like the PO is full of BS on that one. > Sent via BlackBerry by AT&T > > > > > > > > -----Original Message----- > From: Dustin Mcclure <[email protected]> > > Sender: [email protected] > Date: Fri, 7 Jan 2011 07:55:53 > To: Nighthawk Motorcycle Lovers!<[email protected]> > Reply-To: [email protected] > Subject: [Nighthawk Lovers] Re: Just started cleaning my carbs > > Luckily I watched a few videos on carb cleaning before I started. I > see that one of the big mistakes people make doing this first time is > marring the jets do to overtightening. I have a shop manual that tells > me the proper torque for every screw in the carb I just need to pick > up a torque wrench before I stick my carbs back on. > > So far I have already cleaned all of the float chambers. I pulled out > the main and slow jets and cleaned them with a guitar string of the > appropriate width and cleaned the outside with a scotch pad. I made > sure when I was shooting the carb cleaner through all of the > passageways that I removed the diaphragms( I just didn't to remove > these at first because I have heard that if they swell they may > become unusable). I removed all 4 pilot screws and cleaned them and > their passageways. I could not however find the passageway that leads > to the idle circuit passages. Could you tell me where this is? > > From what I have seen so far the carburetor is in pretty good shape. > The inside looked pretty clean and the carb cleaner that I had shot > through all of the passages with ease. The only problem that I saw was > that one of the idle screws was broken off at the top but the guy who > owned the bike before me said that two of the idle screws had been > like that before and he replaced one(the bike ran fine then). > > Thanks for your time. I plan on putting the carbs back on tonight to > see what happens. Dustin. > > On Jan 6, 10:33 pm, Allen Thomas <[email protected]> wrote: > > Don't get the carb cleaner on the rubber parts,it pulls the oils from the > > rubber and makes them brittle, example: the diaphragms you didn't remove.. > > My experience was that the idle circuit passages are usually what gets > > clogged, if you look at the engine side of the carburator barrels you will > > see some small holes (open the butterflies) these are the ones. Though if > > you have the carbs off the bike anyway you should probably take the time to > > remove the float bowls and clean the main and slow jets too. The best way to > > clean these passages is to remove the pilot jet screws (turn in to > > LIGHTLY SEATED first recording the # turns), and the choke plungers, then > > alternate shooting carb cleaner with compressed air, until you are satisfied > > that air/fluid shoots out of all of them equally well. Make sure you wear > > eye protection as the liquid can get you in the face real easy. If you can't > > get fluid to squirt out of these holes then you will need to soak the carbs > > which will require a full tear down, and that is a bit of work. also if you > > remove them from the bar you will have to completely re-sync them. I > > have read that cooking them in a crock pot full of pinesol or lemon juice on > > low, does wonders and won't destroy the rubber/plastic parts, but I have > > never tried it. > > > Oh yea, empty the tank of the old crud gas, clean the petcock (look for rust > > particles as you may have to clean/seal you're tank), replace any inline > > filters, get a can of seafoam and run that through you're first tank of > > fresh fuel, and put in some seafoam/stabil if you are not going to run the > > bike for more than two weeks. > > > Thats my recommendations anyway, Welcome to the group, and post some > > pictures! > > On Thu, Jan 6, 2011 at 5:51 PM, Dustin Mcclure > > <[email protected]>wrote: > > > > I just purchased a 1984 Nighthawk 700S from my brother in-law. I > > > was aware when I started looking at the bike that it was not running > > > so I had a friend of my parents, who just happens to be a Honda > > > motorcycle mechanic, come and look at the bike. He told me it just > > > sounded like the carbs need to be cleaned. So, last night I removed > > > and disassembled the carbs(except for the diaphragms) and I just > > > picked up some carb cleaner today along with a bottle of sea foam. > > > > I am not really too much of a mechanic but I understand the > > > general function of the carburetors. I was just wondering if anyone > > > would be able to tell me of any specific passageways that get clogged > > > easier than others on these carbs. Is there anything I should pay > > > close attention to? The reason I am asking is because the carburetors > > > are really not all that dirty. > > > > A little more information on the bike. When my brother in-law > > > bought it the bike ran perfectly(that was within the last year and a > > > half). It seems like it just slowly went down hill until it wouldn't > > > start. I have already disassembled the petcock on the bike and cleaned > > > it too. The bike turns over fine it just won't fire up. Any > > > information would be very helpful. > > > > Thanks. > > > > Dustin. > > > > -- > > > 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]<nighthawk_lovers%2Bunsubscrib > > > [email protected]> > > > . > > > For more options, visit this group at > > >http://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 [email protected]. > To unsubscribe from this group, send email to > [email protected]. > 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 [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.
