Very interesting Gene, thanks for the info. Javier. On Fri, Aug 6, 2010 at 5:53 AM, Gene Henry <[email protected]> wrote:
> > >> >>> *Caution: your experience may vary!* >>> >>> There has been much discussion, for a long time, about the inadequacies >>> of the Nighthawk charging systems, and low/no charging below 2500/3000 RPM, >>> or sometimes higher. >>> >>> I had the same problems, and encountered many failures to start. I added >>> an "idiot light" assembly from Harbor Freight to see what was going on. See >>> previous post at the end of this one. I have mine double-stick-taped to the >>> gas tank; maybe not "pretty" but very reassuring! It was my theory that >>> at a "certain" voltage level (undetermined) the voltage level was low enough >>> to cause a failure in the ignition system, even though there was sufficient >>> power to continue to crank the engine. >>> I replaced the battery with a Honda (Yusa?) and the regulator/rectifier >>> with a model from Electrosport -information below - and got an immediate >>> improvement in the whole system. Currently, the lights indicate charging of >>> 12.5 volts starting at between 1200 and 1500 RPM, or lower. Extended >>> driving will bring the system voltage up to near 14 volts. I rode about 125 >>> miles yesterday, and the voltage level was about 14 volts when I turned it >>> off. When I turned the key on this morning to check, the battery was at >>> 12.5 volts with the headlight on, not running. >>> I have just recently had the ignition system worked on, with one coil >>> replaced and a new CDI module, and it has started without hesitation every >>> time since the repair. I think the marginal ignition system was my biggest >>> problem, and the regulator/rectifier was the real "frosting on the cake". >>> >>> If you are having ongoing charging problems, or simply want to improve >>> your reliability, I highly suggest you consider the Electrosport >>> regulator/rectifier. It was also recommended several times by the >>> electrical engineer, [email protected] on our list. >>> Check his previous posts for much more information. >>> >>> >>> Gene Henry >>> >>> >>> *Originally sent 11/2/2009* >>> >>> Recent experience with my 84' CB650SC: >>> >>> Intermittent starting problems, sometimes after just riding and shutting >>> down. >>> Battery condition questionable. >>> Charging system typical low output. >>> I have a multi light voltage indicator from HarborFreight installed so I >>> can see the voltage/battery/charge condition. >>> >>> Three alternator readings: Strong (14V), Normal (13.5V), Low (13V) * >>> $4.99* >>> Three battery readings: Good (12.5V), Fair (12V), Poor (5V) >>> http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=46972 >>> >>> >>> Replaced the battery with a new Honda/Yusa(?). Much better. >>> Replaced the regulator/rectifier with one from Electrosport $100 >>> http://www.electrosport.com/products/product-detail-581.php >>> This made a enormous difference in charging voltage levels. >>> >> >> >> >> -- >> * >> * >> * >> * >> >> > > > -- > * > * > * > * > > -- > 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. > -- 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.
