Sounds like the diaphram is shot inside the petcock. You can buy just a repair kit with the rubber parts. Bryan
On Aug 13, 12:54 pm, Dapper Dan <[email protected]> wrote: > im thinking i will pull the petcock and clean it or replace it. > > dan > > > > On Fri, Aug 13, 2010 at 10:05 AM, Dapper Dan <[email protected]> wrote: > > the weird thing is it does not happen when petcock is on reserve but when i > > removed little hose line from petcock to carb, gas still runs thru petcock > > on both reserve and regular. i am perplexed.still a petcock issue? > > > thanx > > dan > > > On Fri, Aug 13, 2010 at 3:07 AM, < > > [email protected]<nighthawk_lovers%2bnore...@googlegroups.com> > > > wrote: > > >> Today's Topic Summary > > >> Group:http://groups.google.com/group/nighthawk_lovers/topics > > >> - Maintenance questions about my '82 Nighthawk > >> 650<#12a6c69ebeb205c5_12a6aeb43be2de74_group_thread_0>[3 Updates] > >> - sluggish an acceleration.stops suddenly? input from you > >> guys?<#12a6c69ebeb205c5_12a6aeb43be2de74_group_thread_1>[6 Updates] > >> - 1984 Nighthawk 700 S red and black part out listing from my other > >> thread <#12a6c69ebeb205c5_12a6aeb43be2de74_group_thread_2> [1 Update] > >> - New(est) owner of a project Nighthawk 700 S > >> (cb700sc)<#12a6c69ebeb205c5_12a6aeb43be2de74_group_thread_3>[2 Updates] > >> - Little Light > >> Maintenance<#12a6c69ebeb205c5_12a6aeb43be2de74_group_thread_4>[1 Update] > > >> Topic: Maintenance questions about my '82 Nighthawk > >> 650<http://groups.google.com/group/nighthawk_lovers/t/553e21ecf336514> > > >> Timothy Stark <[email protected]> Aug 12 11:55AM -0400 > >> ^<#12a6c69ebeb205c5_12a6aeb43be2de74_digest_top> > > >> Hey if anyone is interested, next June there is a big bike show and > >> cruise > >> in Pickens, SC that I think it would be awesome to flood all the > >> Harley > >> riders with a big Honda/ Nighthawk group (just in case you want to > >> ride the > >> wing instead.) > > >> On Thu, Aug 12, 2010 at 11:23 AM, [email protected] < > > >> "[email protected]" <[email protected]> Aug 12 10:14AM -0700 > >> ^<#12a6c69ebeb205c5_12a6aeb43be2de74_digest_top> > > >> If i can get the $$ and time off work, il be there.... I love that > >> stuff..... > > >> -----Original Message----- > >> Date: Thursday, August 12, 2010 12:10:54 pm > >> To: [email protected] > >> From: "Timothy Stark" <[email protected]> > >> Subject: Re: [Nighthawk Lovers] Maintenance questions about my '82 > >> Nighthawk 650 > > >> Hey if anyone is interested, next June there is a big bike show and > >> cruise > >> in Pickens, SC that I think it would be awesome to flood all the > >> Harley > >> riders with a big Honda/ Nighthawk group (just in case you want to > >> ride the > >> wing instead.) > > >> On Thu, Aug 12, 2010 at 11:23 AM, [email protected] < > > >> surfswab <[email protected]> Aug 12 11:53PM -0700 > >> ^<#12a6c69ebeb205c5_12a6aeb43be2de74_digest_top> > > >> Back to the subject that was at hand before your thread was so rudely > >> highjacked: > > >> Don't know if this will be of value to you, or if you can wait long > >> enuf. There's a guy who restores 70s vintage naked Goldwings and also > >> supplies parts for inline 4s. One of his vendor buddies has come up > >> with a mod that adapts late model spin-on filters in place of the 80s > >> model cannisters. It's a quality piece of tooled aluminum for about > >> $60. > > >> http://www.randakks.com/ > > >> The website is closed to orders at the moment, since the owner's on > >> vacation. But he says he'll back and open for business on the 18th. > > >> As far as battery chargers, I have the Battery Tender Plus, which is a > >> "smart" charger that "reads" exactly how much and what quality charge > >> to apply to a battery. It's foolproof and works like a charm. > > >> Topic: sluggish an acceleration.stops suddenly? input from you > >> guys?<http://groups.google.com/group/nighthawk_lovers/t/b3a2d5d573ce83ed> > > >> dapperdan7 <[email protected]> Aug 12 09:38AM -0700 > >> ^<#12a6c69ebeb205c5_12a6aeb43be2de74_digest_top> > > >> it shuts off randomly when i am riding it. i noticed when i flip the > >> petcock to reserve it starts right up. i checked the plugs they are > >> fine.it hesitates on accelerates at times also. > > >> Chris Besignano <[email protected]> Aug 12 12:53PM -0400 > >> ^<#12a6c69ebeb205c5_12a6aeb43be2de74_digest_top> > > >> Try riding it on reserve, only reserve to see if you experience the > >> same > >> issue. If it runs fine then it sounds like you are starving the carbs > >> due to > >> a blocked petcock tube. Take the petcock out and blow are thru it, > >> maybe get > >> a rebuild kit for it while you have it apart. > > >> Kyle Munz <[email protected]> Aug 12 12:11PM -0500 > >> ^<#12a6c69ebeb205c5_12a6aeb43be2de74_digest_top> > > >> That would be my advice too. I have pictures from when I tore down my > >> petcock on my site. > >> http://munz.kicks-ass.net/nighthawk/?p=151 > > >> -Kyle > > >> On Thu, Aug 12, 2010 at 11:53 AM, Chris Besignano > > >> "[email protected]" <[email protected]> Aug 12 11:18AM -0700 > >> ^<#12a6c69ebeb205c5_12a6aeb43be2de74_digest_top> > > >> Clean the petcock > > >> -----Original Message----- > >> Date: Thursday, August 12, 2010 12:38:24 pm > >> To: "Nighthawk Motorcycle Lovers!" <[email protected]> > >> From: "dapperdan7" <[email protected]> > >> Subject: [Nighthawk Lovers] Re: sluggish an acceleration.stops > >> suddenly? input from you guys? > > >> it shuts off randomly when i am riding it. i noticed when i flip the > >> petcock to reserve it starts right up. i checked the plugs they are > >> fine.it hesitates on accelerates at times also. > > >> -- > >> 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%[email protected]> > >> . > >> For more options, visit this group at > >> http://groups.google.com/group/nighthawk_lovers?hl=en. > > >> Allen Thomas <[email protected]> Aug 12 05:13PM -0400 > >> ^<#12a6c69ebeb205c5_12a6aeb43be2de74_digest_top> > > >> Ok, I'm going to take a stab at describing what my bike was like stock > >> as it > >> may help. Mine stock when cold would require riding with the choke on > >> for > >> roughtly 5 minutes, or at idle for minimum 15 minutes. Otherwise it > >> would > >> stumble on accelleration, if it was really cold outside <50 degrees F > >> I > >> might not take it off the choke at all. If it was cold I could not > >> twist the > >> throttle quickly or it would shut off. Could it just be that the > >> engine is > >> not warm enough? Also I had an inline fuel filter for a while that was > >> pinching the fuel line. I didn't pinch it enough to cause any issues > >> until I > >> attempted extended highway riding, it would just run out of gas and > >> shut > >> down. When I pulled over the float bowls would fill up and away I'd go > >> until > >> it shut down again. so check you're fuel line for sharp bends, the > >> stock one > >> is molded and a PO could have replaced it with a straight line that > >> restricts flow. Lastly if your bike is really rich it could shut off > >> when > >> you come to a stop, or hesitate when you start off from a stop. A rich > >> running engine just feels like it looses power as the engine warms up, > >> or on > >> a hot day. A lean engine will stumble on acceleration. Hope that helps > >> somewhat, the only thing else I could add would be some sort of an > >> electrical issue like on the key switch, the kill switch, bad ground > >> on the > >> engine, something that is affected by vibration which fixes its self > >> when > >> you come to a stop. > > >> [email protected] Aug 13 12:23AM -0400 > >> ^<#12a6c69ebeb205c5_12a6aeb43be2de74_digest_top> > > >> I had this problem on my 550. My brother took the cdi box apart and > >> did some re soldering and sealed it back up and I'v had no problems now. > > >> rodhall > > >> -----Original Message----- > >> From: Allen Thomas <[email protected]> > >> To: [email protected] > >> Sent: Thu, Aug 12, 2010 4:13 pm > >> Subject: Re: [Nighthawk Lovers] Re: sluggish an acceleration.stops > >> suddenly? input from you guys? > > >> Ok, I'm going to take a stab at describing what my bike was like stock > >> as it may help. Mine stock when cold would require riding with the > >> choke on > >> for roughtly 5 minutes, or at idle for minimum 15 minutes. Otherwise it > >> would stumble on accelleration, if it was really cold outside <50 > >> degrees F > >> I might not take it off the choke at all. If it was cold I could not > >> twist > >> the throttle quickly or it would shut off. Could it just be that the > >> engine > >> is not warm enough? Also I had an inline fuel filter for a while that > >> was > >> pinching the fuel line. I didn't pinch it enough to cause any issues > >> until I > >> attempted extended highway riding, it would just run out of gas and shut > >> down. When I pulled over the float bowls would fill up and away I'd go > >> until > >> it shut down again. so check you're fuel line for sharp bends, the > >> stock one > >> is molded and a PO could have replaced it with a straight line that > >> restricts flow. Lastly if your bike is really rich it could shut off > >> when > >> you come to a stop, or hesitate when you start off from a stop. A rich > >> running engine just feels like it looses power as the engine warms up, > >> or on > >> a hot day. A lean engine will stumble on acceleration. Hope that helps > >> somewhat, the only thing else I could add would be some sort of an > >> electrical issue like on the key switch, the kill switch, bad ground on > >> the > >> engine, something that is affected by vibration which fixes > > ... > > read more »- 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.
