QuestionI tested my stator and rectifier and got the data below. Do you draw any conclusions other than the stator and rectifier are bad?
I got this data.
Yellow: 0.5 volts
White - 21.5 Volts
These should be at or above 12 volts depending on the RPM.
I dont understand the daytime - night time wire...are both wires putting out voltage..just the white(night) puts out more?
I checked the resistance in the Stator...and I got this
Yellow - Pink - should be 1.1 Ohms - This tested at 1.5 Ohms
White - Pink - should be 0.55 Ohms - This tested at 0.7 Ohms
I tested the rectifier in both directions:
Rectifier
Direction A
Resistance should be 5 to 40 Ohms
Four wires
8.1
8.6
6.8
7.5
Direction B
Should be over 600 Ohms
Four wires
35
38
14
31
I also noticed on the CB350 and CL350 schematics...the negative wire from the batterty is a wire going straight to ground. The SL350 from the negative terminal runs around the bike before grounding...seems like the CB and CL wiring is a better design.
AnswerKen, did you check the ohms readings to ground, as well, for the stator? Yellow lead should have at least half the voltage of the pink one coming out of the stator.
Check the headlight switch wiring for continuity through the switch when the lights are turned ON?
Rectifier values do seem low, but it can depend on the type of meter used and what scale you were using. You should see very high resistance values on the bias current test. These bikes do have a current regulator that can influence output.
You didn't say which version SL350 you have... one has electric starter and is wired much like the CB/CLs, while the later ones have no big electrical load, thus smaller ground wiring, if that is the case. Perhaps someone has tampered with the wiring, previously.
http://oldmanhonda.com/MC/WiringDiagrams/MCwiring.php#class
You can find more troubleshooting trees at www.electrosports.com plus they may be a source of some parts that are cheaper than OEM Honda parts.
Bill Silver
