thanks for your reply Jason. I wanted to tell you that the slides on all four carbs move up and down with the throttle.they do flutter a bit though,but I figure thats just cause its only running on two cylinders. If the hose was clogged would they still move , and could the fuel not come through even with the slide open..
----- Original Message ----- From: jason scott To: nighthawk lovers Sent: Sun, 18 Oct 2009 08:28:33 +0000 (UTC) Subject: [Nighthawk Lovers] Re: 84- 650 -carb checking 2 carbs are connected with hose on top that needs outside atmospheric pressure to lift plunger that lifts needle that allows fuel from main jet. wasp built nest inside open tube. thats just a guess. ----- Original Message ----- From: [email protected] To: nighthawk lovers Sent: Saturday, October 17, 2009 9:54 PM Subject: [Nighthawk Lovers] Re: 84- 650 -carb checking yes im sure that my carb job is the problem..it runs just slightly better than it did before !! but yes the 3 and 4 plugs look like they are new . no gas or oil or carbon on them at all .As for the carb cleaning, I took them off the bike then removed the bowls , unscrewed the 2 main jets and blasted them out , removed the choke mechanisms and blasted them out, removed the floats and needle valves and blasted them out . gave every thing inside and out a good cleaning. I didnt seperate the carbs or remove the tops of the carbs as I was affraid of tearing A diaphram ...this carb was so nasty that I actually found A wasp in 2 of the bowls...anyway this is bizarr to me because I have suction,spark and fuel in the bowls but the fuel must not be gettin through to the head.. ----- Original Message ----- From: Dennis Hammerl To: nighthawk lovers Sent: Sat, 17 Oct 2009 18:39:51 +0000 (UTC) Subject: [Nighthawk Lovers] Re: 84- 650 -carb checking I didn't want you to start removing anything yet, the cam cover is a bitch to reseal. As long as the carbs are pulling air in and you have fuel in all the bowls, and there is ignition to all plugs.. That is what it takes to make an engine run. Now what is wrong with yours ? I can't imagine any bike not responding to a blast of carb cleaner. Are the plugs for 3,4 dry ? What about 1,2 ? Just to be blunt, I suspect your carb clean is flawed. I think you said you did not remove them from the "runner" so no linkage was disturbed. How far into the carbs did you go ? What did you remove from them to clean ? Remove the slides ? Never a good idea. I really foul set of carbs takes many hours of work to get all the details. --- On Sat, 10/17/09, [email protected] wrote: From: [email protected] Subject: [Nighthawk Lovers] Re: 84- 650 -carb checking To: "nighthawk lovers" Date: Saturday, October 17, 2009, 5:25 AM yes,their is fuel in all bowls.so far I have cleaned and visually inspected carbs,installed ngk plugs and checked to make sure ex.pipes were clear of debris.and removed valve cover ,turned over,and that all looked fine,no broken cam..also shined A light in the r. two cyls.to see that the piston has no holes and looks ok,but I dont have A comp.tester..I did notice when cleaning the carbs that when i had them all apart I could spray carb. cleaner thru the choke passages and it woud come out in A diff. place on all exept the one on far right ?I never got that cleared out!but even so could that make both cyls. not run . and is their A trick to getting that cleared. I found A good used carb set on ebay for 75$ it looks ident. but its for A 700 cc 84 model !!! do you know if it will work on my 650 ?? ----- Original Message ----- From: Dennis Hammerl To: nighthawk lovers Sent: Sat, 17 Oct 2009 04:45:28 +0000 (UTC) Subject: [Nighthawk Lovers] Re: 84- 650 -carb checking Have you done a compression check ? Any serious problem would show. Start there. Fuel in the bowls of all carbs ? When it's idling, if you cover the right carb throats with your hand, does it suck you in ? If it doesn't, you do have something very wrong. I believe I asked for details of your work so far.. carb work etc. These bikes share ignition on 1, 4 and 2,3 . The only things shared by the pairs on a side are fuel flow and where the pipes join before the EQ. --- On Fri, 10/16/09, liebo1 wrote: From: liebo1 Subject: [Nighthawk Lovers] 84- 650 -carb checking To: "Nighthawk Motorcycle Lovers!" Date: Friday, October 16, 2009, 6:54 PM I have an 84 NH 650.the right two cylinders are cold.they are getting good spark and vacuum at idle,but im not sure there getting gas.is there A way to find out if its that before I go internal?? Im thinking it might be a broken cam because its two side by side cylinders that dont even get warm,and I can shoot A shot of ether in those carbs while idling and it makes no change in rpm at all !!! any ideas ?? thanks friend. --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
