Speculation.......... does not a good mechanic make! I like the idea of taking it for an extended ride and seeing how it performs and the temperature of the pipes at the end of the ride. Eliminate the simplest possibilities first. Move from knowing nothing to at least knowing what it isn't. Speculated guessing doesn't actually establish anything. I suggest doing the sparkplugs first (easiest). Examine them carefully to see what they tell you about the conditions in the cylinders that they come out of- that could tell you a lot. Checking the compression would be easy with the plugs out and would probably tell you more about what it is/isn't. Checking the distance that the spark will jump will tell you a little more. Or get an (ex) friend/girlfriend/wife to hold the wire and give you an opinion! (And and she claimed you didn't have enough spark!). If the spark is good and the compression is good then move your suspicions on the carbs. Just keep illuminating things and before you know it the bike is fixed!
From: Allen Thomas Sent: Saturday, April 30, 2011 3:48 PM To: Nightwawk Lovers Subject: Re: [Nighthawk Lovers] Re: NH 750 cold pipes How many miles on the bike? Does it smoke? I'd be willing to bet money it is the carbs. There are a couple of us who have bikes with 100K+ miles, and I have seen quite a few for sale with 75K+. So unless you have 50K or more on you're bike or if it is smoking the compression is probably fine. Sent via BlackBerry by AT&T -------------------------------------------------------------------------------- From: vadik selo <[email protected]> Sender: [email protected] Date: Sat, 30 Apr 2011 16:39:48 -0400 To: <[email protected]> ReplyTo: [email protected] Subject: Re: [Nighthawk Lovers] Re: NH 750 cold pipes the bike runs strong, i'm going to ride it a little bit and see if i have this problem still, bc if its low compression im in deep doodoo On Sat, Apr 30, 2011 at 3:11 PM, Matt Rowe <[email protected]> wrote: On Apr 30, 11:21 am, vadik selo <[email protected]> wrote: > so i was changing oil today in my 1993 nh 750 and i've noticed that my 2 > left pipes that come out of the engine are hot after running a bike for 5 > min and my 2 rite ones are barely warm but the exhaust fumes come out of > both pipes and it seem to run good, its strong well it seems since i never > drove any other nighthawks > > is that a problem? couold the other cylinders be not getting any fuel? spark > plugs are bad?? > any ideas? > thanks Definitely check, and if necessary, change your plugs. I would also do a compression test on each cylinder. It sounds like low compression on the two right side cylinders. They may be running, but not like they should. You can get a compression tester fairly cheap at Harbor Freight Tools. Low heat off of the headers is a classic symptom of low compression or, if your lucky, bad plugs. How has your fuel mileage been? Acceleration? -- 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 mailto:nighthawk_lovers%[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 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 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 at http://groups.google.com/group/nighthawk_lovers?hl=en.
