Newbies first post. TIA
80 xs650 special
The Story... My bike wasn't charging the battery so I did Curly's trouble shooting guide from another forum. The rotor had 0 ohms so I replaced it with aftermarket Chinese part, brushes still good. Seemed to be charging okay then, so I went for a ride. 50 miles later she started to miss badly just off idle up to about 3500 rpm. Limping home I notice the turn signals seem to make it miss worse so I'm thinking a voltage issue. Battery checks out fine, good voltage so I test the regulator / rectifier. All the diodes check good, not sure how to test the regulator part so I install the Chrysler regulator with the original rectifier using the brown and green wires with separate ground. Seems to be charging fine with max voltage of 15V revved. But still missing at lower rpms.
At this point I need some trouble shooting help. I'm thinking did the TCI go bad also? But here is the kicker... If I disconnect the charging system at the 8 prong (7 used) plug from the regulator / rectifier at the harness, thus running her on the battery, the engine miss disappears and she runs fine. Could it be the TCI can't handle anything over battery voltage? The miss (severe) starts immediately off idle like maybe 1200 rpm or less and continues until she is revved up like maybe 3500 rpm or more.
WTF HELP!
Rick
80 xs650 special
The Story... My bike wasn't charging the battery so I did Curly's trouble shooting guide from another forum. The rotor had 0 ohms so I replaced it with aftermarket Chinese part, brushes still good. Seemed to be charging okay then, so I went for a ride. 50 miles later she started to miss badly just off idle up to about 3500 rpm. Limping home I notice the turn signals seem to make it miss worse so I'm thinking a voltage issue. Battery checks out fine, good voltage so I test the regulator / rectifier. All the diodes check good, not sure how to test the regulator part so I install the Chrysler regulator with the original rectifier using the brown and green wires with separate ground. Seems to be charging fine with max voltage of 15V revved. But still missing at lower rpms.
At this point I need some trouble shooting help. I'm thinking did the TCI go bad also? But here is the kicker... If I disconnect the charging system at the 8 prong (7 used) plug from the regulator / rectifier at the harness, thus running her on the battery, the engine miss disappears and she runs fine. Could it be the TCI can't handle anything over battery voltage? The miss (severe) starts immediately off idle like maybe 1200 rpm or less and continues until she is revved up like maybe 3500 rpm or more.
WTF HELP!
Rick