+1 for coils. They can also be affected by heat and will pass when cold and fail when hot. So you have to test them in both circumstances.
On Aug 14, 2016 18:08, "Kurt Nolte" <[email protected]> wrote: > Your problem is not a charging problem. So stator, rectifier, etc: ignore > those parts for the moment. > > Measure your resistance to ground at the coils, measure your coil > resistance as a start. > > Kurt > > On Aug 14, 2016 16:53, "Caleb Ackley" <[email protected]> wrote: > > Hi everyone! > > I have a 1982 nighthawk 650 with a couple problems. > > First things first the bike will start up just fine when cold with the > choke, after warming for a couple minutes the choke can be turned off fully > and the bike will idle great! > The problem is that after riding for about 15 minutes (regardless of the > speed or gear) the bike will start to bog down or maybe lose spark out of > nowhere. If the clutch is pulled in at that time > or the engine slows down past 4,000 RPMs the bike will stall out and then > will not start until it is cooled for at least 5 minutes. The choke must be > used also to get it going until it cools significantly. Then the same > thing will happen 2 minutes later!! > > A buddy of mine said that the charger, stator or rectifier was shot. So I > used a voltmeter on the batter and checked to see if it was getting a > charge, which it was. At about 4,000 RPM the voltmeter read about 14 volts > and didn't seem to rise any higher. Also the starter has always cranked > normally after the bike dies, and the battery seems ok. I hooked up my > multimeter to the charger and it read about 5.5 ohms. So i am lead to > believe that the charging system up to the battery is ok. Am i correct in > thinking this?? I haven't tested the coils or CDI box yet as i am not > quite sure how. > > Any help would be greatly appreciated!! > > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/nighthawk_lovers. > For more options, visit https://groups.google.com/d/optout. > > > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/nighthawk_lovers. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/nighthawk_lovers. For more options, visit https://groups.google.com/d/optout.
