74' cb200 charging problems and small tiny flakes in oil

[dubkahl98]

did a complete rebuild on bike.. also redid some wiring .. such as lights, kil switch, turn, brake lights horn etc.. now its not charging.. dont know if it ever did considering it didnt run much when i bought it.. runs great now, but dies after a couple hrs riding.. i checked the rectifier and it seems to be fine.. i got readings on all my diodes in one direction.. checked the stator and i think it seems fine also. i put my meter on ac voltage and when i tested i was getting 12 volts at idle and around 40 while at 5 to 6 thousand rpms.. except on wire out of the three i was only getting roughly 6 to 7 volts.. ??? should i get the same reading from all? i think it might be good considering though thast i thinks its rubbing on my rotor. i think its cause the side case must be tweaked or something? but im really stumped on the regulator.. dont know how to check it.. im i feel like im getting know where.. if anyone lives around sharon pa new castle youngstown area id be glad to pay someone to help me out on this.. i wanted to do the whole thing myself when restoring it, but summers almost over and im really itching to ride! lol thanks for any input and god bless

 

[teazer]

Grab a new regulator for a start from Oregon M/C Parts. On that system, there are two power leads (P & Y) from the alternator and the other is common ground (LG/R).

I'd fit a good new regulator and test battery voltage to see if it's OK. If not then grab a second hand stator.

 

[dubkahl98]

did a little more monkeying around today and i traced the green wire that comes out of my rectifier that goes back to my regulator.. its god good volyage coming from it.. so i plugged it back to my regulator and checked the yellow wire to see if any juice was coming out of it and nothing.. just like you said. regulator must be shot.. thanks for your input ! i appreciate it.. do you think i could match something up at a bike shop? only cause id like to ride it this wkd and not wait for another part to come in the mail.lol

 

[teazer]

IIRC, models in the same line prior to the last CB175 did not use a voltage regulator at all. Maybe they were so weak that it wasn't much of a problem. What voltage do you get out of the rectifier lead? 14-15 is top limit of acceptability. If it's less than than, you could run it for a short run without a regulator if you have a stock sized battery.

You could also pick up a simple zener diode regulator I guess form almost any bike with permanent magnet charge system and as long as it's cheap you should get away with it for a weekend ride.

 

[interceptor]

On a 74 Honda, or any older Honda, isn't the green wire a ground wire? And the Yellow should provide power to something? How did you get voltage out of the green wire?

 

[Bert Jan]

Yup. Green is earth, red is primary +. After red travels thru the igniton, it turns black. Therefore black is + when bike is "run".
yellow is 3 wires from regulator.

 

[teazer]

Not on a CB200 IIRC. Rectifier has Red/white, yellow, green and pink. REd/White to battery, Pink and yellow to the alternator stator. Green is common ground.

CB200T is the first of that line to get a regulator and it has Yellow, Green and Black. Green is ground, black is switched 12V and yellow is to the alternator.

Alternator has yellow to the R&R and yellow/white to the light switch and it then goes back to the rectifier and pink, which is the other end of the charge coils. Easiest test is DC volts across the battery.

Running at low speed should be around 12-13 volts. As revs rise voltage should hit 13.5 - 14.5 at the battery. It sounds like you may be checking between the wrong pairs of leads. Just test for voltage at the battery.