You can swap the wires for 1&2 really easily, so I'd give that a quick try.
- JO On Jun 26, 2011, at 7:00 AM, Allen Thomas wrote: > Try putting the clean set on. My bike came with a cylinder that wouldn't fire > until the bike was warmed up due to restricted pilot jets. If you still have > issues after replacing the carbs recheck the plug wiring on #1 and 2. Check > compression. > Sent via BlackBerry by AT&T > > From: Bryan McGee <[email protected]> > Sender: [email protected] > Date: Sun, 26 Jun 2011 04:17:15 -0700 (PDT) > To: <[email protected]> > ReplyTo: [email protected] > Subject: Re: [Nighthawk Lovers] back fires when cold > > Ok James,You maybe right i fired it up this morning and YES it is back firing > again this time I let it warm up to find out that two pipes are hot and two > are cold!!! #1 and#2 are cold > #3 and #4 are hot . > also I found I put the wrong carbs on the bike I have two sets and put the > ones that were not cleaned could this be the problem ? any help very welcome > thanks bryan. > > --- On Sat, 6/25/11, James O'Gorman <[email protected]> wrote: > > From: James O'Gorman <[email protected]> > Subject: Re: [Nighthawk Lovers] back fires when cold > To: "[email protected]" <[email protected]> > Date: Saturday, June 25, 2011, 9:43 PM > > Does the bike run like crap? You may have some plug wires crossed so that a > cylinder or two isn't firing and the unburnt fuel is traveling out the > exhaust and igniting when it hits the hot exhaust from the other cylinders. > > You could also have over- richened the mix which could cause similar issues. > Are all four pipes heating up equally? > > - James O'Gorman > > On Jun 25, 2011, at 6:32 PM, Bryan McGee <[email protected]> wrote: > >> Ok again I need some help I've got a 84 Nighthawk cb650 I'm all done putting >> the bike back together and i cleaned the carbs just like the manual say to. >> after getting the bike to fire up it back fires out the exhaust what could >> be the problem? after getting to warm up it seems to run good what can I >> do.also i'm running supertrap exhaust 4 to 1 on it.. >> >> >> -- >> 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. > > -- > 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.
