I found that the tiny plastic gastank off of my lawnmower worked just fine for running my bike with the tank removed. The fuel line was the same size, I just hung it from the handlebars.
-Kyle On Fri, May 29, 2009 at 1:23 AM, Dennis <[email protected]> wrote: > Dennis, > > Any thoughts on how to arrange things so that I can run the bike with the > fuel tank removed? I'm doubting that it'll run long enough with what's in > the bowls for me to test all four plug wires for spark. What do people > normally do to be able to run with the tank off? > > Dennis > - Seattle > > -----Original Message----- > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Dennis Hammerl > *Sent:* 28 May, 2009 21:29 > *To:* [email protected] > *Subject:* [Nighthawk Lovers] Re: 700SC carbs question > > That's scary stuff... flash point is too low. You could be hurt. > After a few minutes of run time, shut it of and open those screws a bit > (the one you sent a picture of) and see if fuel runs out. this way we insure > that each bowl is filling. I'm assuming that you passed the .0011 wire > through each slow jet ? I'm starting with some basic stuff here. Does this > pop or anything? just sounds flat ? > > --- On *Thu, 5/28/09, Dennis <[email protected]>* wrote: > > > From: Dennis <[email protected]> > Subject: [Nighthawk Lovers] Re: 700SC carbs question > To: [email protected] > Date: Thursday, May 28, 2009, 11:51 PM > > Dennis, > > It is very flat seeming when it runs. I haven't run it long enough to let > it fully warm up. But, during the time I have run it, I use about half > choke and a bit of throttle to keep it running or else the RPMs drop so low > it stops. When I've got it going and I give it throttle, it comes up > slowly and with little enthuiasm. I've run it up to about 3500 and it > sounds pretty different than it would if it were run up to 3500 when it is > running right. > > I have some spray starter fluid - would that do? > > Dennis > - Seattle > > -----Original Message----- > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Dennis Hammerl > *Sent:* 28 May, 2009 20:39 > *To:* [email protected] > *Subject:* [Nighthawk Lovers] Re: 700SC carbs question > > Your plugs are indicating a lean condition.(ideal is somewhat brown) > Not unexpected given being loose. Loose plugs do not transfer heat as they > should. Effectively rendering them about one heat range more than they > should be. It would appear that they all were firing. However, I will wait > to see what you have to say about that. A 700s running on two out of four > would be a very flat sounding, poor running thing. Do you have a spray carb > cleaner ? Idle the motor and push the boots aside a tiny bit and spray a bit > into each carb throat and observe the reaction. If it picks up or garfs a > bit. > > --- On *Thu, 5/28/09, Dennis <[email protected]>* wrote: > > > From: Dennis <[email protected]> > Subject: [Nighthawk Lovers] Re: 700SC carbs question > To: [email protected] > Date: Thursday, May 28, 2009, 11:17 PM > > Dennis, > > Thanks as always for sharing your advice. Tommorrow, I'll see which plug > wires are sparking. > > I did use the strong light method of evaluating the butterfly valves and > the one I adjusted was a better match when I was finished. > > I wondered if taking the cables off at the grips was the right thing to do > to gain extra length. I didn't do it that way and it was a very tight > business to do it the other way but, ultimately, it worked. Next time, > I'll take the cables loose on the other end and make things easier. > > I just walked out and had another look and now I see where to connect the > manometers. Does make a lot more sense than trying to connect them to the > bottom of the float-bowls, eh <smile>? > > Dennis > - Seattle > > -----Original Message----- > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *[email protected] > *Sent:* 28 May, 2009 19:53 > *To:* [email protected] > *Subject:* [Nighthawk Lovers] Re: 700SC carbs question > > The OEM exhaust is a balanced affair. So dismiss any thought of a > diagnosis in that fashion. Please do check for spark at all plugs before we > go tearing into anything else. When you have determined that, get back to > me. The procedure to check out an ignition issue on a system like that is > something that will take time to write out. Only if I have to. > > The vacuum take-off point is at the screws on the intakes. Same place as > the vacuum take-off that is used for the petcock. The hoses are plugged into > adapters on one, three and four, the petcock take-off on two. Understand ? > You have to remove the screws and thread in adapters. > > Did you use a strong light to determine that a throttle plate needed to be > moved ? > > Graham, the "pressed in jet" is not to be removed. There are only two. > Remember to clear the slow speed jets with the .0011" wire. > > As far as R&R of the carb pack, it is best to start at the grip and remove > the cables to insure enough slack at the carbs. The air box can be slid back > quite far to allow space, just takes some effort. Liquid soap, WD-40, or > silicone spray makes for a much easier time popping the boots and intakes > off and on. Kyle takes the bolts out and pulls the intake manifolds out with > the pack. I have no problem with that method. > > --- On *Thu, 5/28/09, Graham Rogers <[email protected]>* wrote: > > > From: Graham Rogers <[email protected]> > Subject: [Nighthawk Lovers] Re: 700SC carbs question > To: [email protected] > Date: Thursday, May 28, 2009, 10:17 PM > > I haven't put the carbs back on my 700SC yet - I'm afraid to! I put the > carbs back on my CB750F and it ran like before! Graham > On May 28, 2009, at 9:28 PM, Dennis wrote: > > Well, I finished putting my 700SC back together today and started it up - > and it ran just as before. It feels like I have two cylinders firing and > two not - but that's a guess - I haven't watched the spark plugs spark to > prove it. I have the stock dual exhaust and it seems to me like both > mufflers feel the same. So for either muffler, one cylinder's hitting and > one's missing. Does that make sense? > > Dennis, I'm keen to focus now on the coils if you still think that's the > most likly target to investigate, Can you tell me your thoughts again about > how to test them out? I had a look at them today but I didn't see anything > obvious like broken or shorted wires. > > Cheers! > > Dennis Gallagher > - Seattle > - '85 & '86 CB700SC > > > > > > > > > > > > > > > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
