www.howtomotorc... Learn How-To Repair and Maintain your own Motorcycle!
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@henerymag11 жыл бұрын
I did check the rotor and there was no reading at all. So glad I ordered one. Thanks to your instructions I got it off with the axle.
@HTMR11 жыл бұрын
I don't have any vids or writeups on reg/rec. You'll need a multimeter. The manual does a good job explaining the procedure.
@HTMR11 жыл бұрын
Cool. Make sure you test the regulator/rectifier. Sometimes once the rotor goes, it will take the reg/rec with it. I can upload the service manual to my site if you don't have it.
@henerymag11 жыл бұрын
I've got the manual now and it does a good job. Thanks for all your help and I'll continue to check out the excellent vid's you put out.
@muhammedalidenizli60675 ай бұрын
Kitapcığı bulamadım yardımcı olurmusunuz
@PappyfromtheKeys3 жыл бұрын
Okay......where is the video showing the testing of the repaired charging system? I like your no nonsense approach to these videos. Well done.
@HTMR11 жыл бұрын
Yes, have fun & learn with it! Inexpensive? Depends on how much it needs.
@johnlambert32732 жыл бұрын
The right way to use a digital ohmmeter on low ohms is to short the test leads together, note the reading and then subract that reading from the result. This will compensate for the resistance of the test leads.
@HTMR11 жыл бұрын
Keyster makes good kits. Also check Randakks, however I think it is for 750's and up.
@HTMR11 жыл бұрын
You need to find out why it is not charging, otherwise it can get expensive and frustrating. You can inspect the rotor. The insulation usually deteriorates and it shorts out. You can check the rotor & stator with a multimeter. You can check the output of the alternator. Also, you can check the reg/rec unit.
@janstastny24964 жыл бұрын
Thanks for video, The idea with The axle saves my day.
@MarkusReese10 жыл бұрын
Awesome vid! Guess what I am probably going to be doing in next couple days...
@HTMR10 жыл бұрын
Thanks and good luck!
@henerymag11 жыл бұрын
Thanks I will. Had trouble getting a screw out and snapped off a brush, so in ordering a new set I went ahead and got a new rectifier/regulator. Should be pretty much new when I finish. A bit pricey but I'd like reliability and I'm not paying for labor.
@henerymag11 жыл бұрын
Just picked up an '81 CB650. The seller had work done last year and the wrench at Honda said the stator needs replacing. I ordered the stator and the rotor figuring from what you showed the rotor would probably need replacing anyways, better to be safe than sorry I guess.
@jasonramsdell10 жыл бұрын
great video. after watching I got the job done in less than 30 min.
@HTMR10 жыл бұрын
Good job Jason. Is it charging again?
@jasonramsdell10 жыл бұрын
MatthewMCRepair yes it is after 3 days of research, wire diagrams, and frustration trying one thing after another spending way more money than needed, I found this video now with a great relief its charging and I have a lot of back up parts if anything else goes. and the rear axel trick worked great. I have a 1982 cb750f I used it on
@HTMR10 жыл бұрын
Jason Ramsdell Great to hear. Electrical gremlins are tough.
@HTMR11 жыл бұрын
Stators rarely go bad. Check resistance between each white wire leg...should be about .5ohms. White wires should not have continuity to ground.
@HTMR11 жыл бұрын
Definitely let me know how it turns out.
@juntjoonunya92164 жыл бұрын
Haha you think yours is dirty, I'll buy it! Looks like you keep your stuff clean and in top condition. I need a new one too, needed really.
@henerymag11 жыл бұрын
No I didn't. The bike is still at his house, I was going by what he told me. Do you think at least the rotor was a good idea? For sure it is not charging. Being in Canada most parts have to be ordered from the State's, so things are not cheap. But I do like the bike and my test ride showed it to be running very well. Thanks.
@HTMR11 жыл бұрын
Did you test the stator? They usually don't go bad. Congrats on the new bike!
@HTMR11 жыл бұрын
Bought a rewound one from ebay. New OEM ones are crazy expensinve!
@seventeenfeet3 жыл бұрын
how long did it last?
@HTMR12 жыл бұрын
Hopefully it solves your charging problem.
@julien8503Ай бұрын
Bonjour Ayant le même problème votre vidéo m’aide beaucoup. Mon rotor est entre 3,9 et 4 ohms. L’isolant est dans un état satisfaisant. Cependant j’ai mesuré mon stator entre les files jaunes. J’ai 0,6 et 0,7 alors que je dois avoir entre O,41 et 0,51 ohms. Qu’en pensez vous ?
@69stringibanez11 жыл бұрын
how much work is involved in removing the rear axle?
@mesoccerboard2 жыл бұрын
The rear axle on my 1981 CB650 Custom does not fit the rotor threads. Still in search of 17mm x 1.5 bolt to get the rotor pull off of the crankshaft
@Choirboyjr1110 жыл бұрын
I like you videos man! keep it up!
@golfkey18 жыл бұрын
When I went to put the cover on it was a little tight with the Stator fitting on the Rotor. Gave it a little tap with the mallet and she settled nicely. Before I replaced the Rotor i had no issues with the fuses, Now I'm wondering if I fried one of the other charging units.
@ricardojaracastillo880810 ай бұрын
¿Dónde consigo guía de cadena de distribución? Tengo el motor RC03E
@bronwenable12 жыл бұрын
exactly what i needed thanks
@maxwellrichter51252 жыл бұрын
I can’t get the rotor bolt lose at all any tips? Tried everything
@11KAB112 жыл бұрын
Clymers says .4-.5 ohms between slip rings
@HTMR11 жыл бұрын
Yes, nothing like being stranded with a dead battery.
@henerymag11 жыл бұрын
I have no idea how to check the regulator. I did order the manual for the bike. If you could tell me how to check it though I would really appreciate it as I'd order one if it's bad. Still to cold here for riding anyways. Thanks for your help.
@mattbrew1111 жыл бұрын
forgot to mention that I'd intend to clean it up and ride it but as I get used to it, chop the rear and turn it into a bobber style with mini ape hangers.
@dzg18911 жыл бұрын
cb750 nighthawk 1982 let me down on first day out on it
@juntjoonunya92164 жыл бұрын
How easy should it be to pull the axle out? Book says you gotta do a lot of loosening of bolts related to the brake and chain tensioner. Was hoping you could just slip it out then back in
@muhammedalidenizli60675 ай бұрын
Selam bende 1982 model cb 650 var şarj yapmıyo yardımcı olabilirmisin
@henerymag11 жыл бұрын
Thank you.
@MrJaycjr4 жыл бұрын
So did the charge after u worked on it?
@dirtydrew1811 жыл бұрын
I may be one of the few that this trick (or the actual OEM puller for that matter) didnt work. I had to use the puller, a cutting torch, and persuasion with a hammer to get the damn rotor off.
@mattbrew1111 жыл бұрын
hi. I found a 1981 cb650C in a junkyard for $400. The guy says it runs. It has 18k on the odometer. I am wondering if this is a bike that's pretty good? Ive never owned a moto before and am pretty mechanically inclined BUT I've never worked on a bike or a carb before. Are these pretty cool bikes? Pretty inexpensive to fix up? thanks so much!
@HTMR11 жыл бұрын
If the bike still has a centerstand, not much at all.
@soulchief15325 жыл бұрын
would a bad rotor or stator cause the bike to stall after running for about 10-15 minutes and have issues starting while still hot? I have an 81 cb650 with this issue
@HTMR5 жыл бұрын
Does the battery die and unable to crank it over?
@soulchief15325 жыл бұрын
@@HTMR yes, although once it is cooled down it regains enough voltage to start it again
@HTMR5 жыл бұрын
@@soulchief1532 Have you hooked a multimeter up to see if it is charging? But to answer your question, yes a bike will eventually die if charging system is not functioning.
@soulchief15325 жыл бұрын
@@HTMR I did hook it up yesterday and it was charging fine at idle, it got up to about 14 volts when I started opening the throttle a little and getting it warm. Maintained about 13.1 after that. Then I shut it off and it dropped clear down to 12.1 and wouldn't start
@HTMR5 жыл бұрын
@@soulchief1532 I had a similiar situation on this bike. Turns out the rear brake switch was always "closed", so brake lights were on all the time (2 bulbs) and it killed the battery. So I would suggest pulling one fuse at a time and see if your problem goes away. There might be an electrical load that is not supposed to be on. This goes to show that stock charging system is marginal.
@lucfilm209 жыл бұрын
I got the CB900F super sport I replaced rectifier, stator & flywheel kit even the brushes and still no go all the wrg is good at this point im stuck
@HTMR9 жыл бұрын
Luc Rancourt How are you testing the charging system? At idle and at a higher RPM?
@jhoad8911 жыл бұрын
looking for a new rotor myslef, seems changing it is easier than finding it. know any places? whered you get yours at?
@losteroni9 жыл бұрын
my rotor went bad with no continuity brtween the rings . I bought a puller for 5 bucks went down to the junkyard and got an identical one from a cb900 for 20 bucks and never had a problem with it again .
@HTMR9 жыл бұрын
joseph bourdeau Good deal. There are no MC junkyards around where I live.
@oscarcoreas38448 жыл бұрын
hey, first off, really nice video it helped alot, i have a question tho, when i test my rotor like you did im getting like 1.5 - 2 ohms, you said that its between 4.2 and 5 so does that mean that my rotor is done? im looking into it because my battery is not charging, so would that be my problem you think?
@HTMR8 жыл бұрын
Did you clean the slip rings before checking?
@oscarcoreas38448 жыл бұрын
+MatthewMCRepair i did not, i will do that and test again, something is off for sure, regulator isnt problem because thats been changed so im thinking stator or rotor
@HTMR8 жыл бұрын
Check out this troubleshooting chart from Motorbike Mondays: motorbikemondays.com/wp-content/uploads/2015/10/rte_troubleshooting_flow_chart.pdf
@Jiklopmoo10 жыл бұрын
Hi MatthewMC, I'm working on the exact same bike and was wondering where you got the parts such as the carb boots and the charging rotor? Thanks Derek
@HTMR10 жыл бұрын
The rotor was purchased on ebay since cost was less. It was a rebuilt with core charge. The boots can be bought any place online that sells OEM honda parts.
@donovonlevan13068 жыл бұрын
Wont hitting the rotor like that cause it to lose magnetism? Same as hitting the cover with a hammer or dropping the rotor all together?
@HTMR8 жыл бұрын
No.
@daliramon38469 жыл бұрын
I have a problem with my 81 cb650. sometimes it will start up all day with no issues, but other days i will need to jump start it. some days its doesnt't start at all... just today it shut off on me at a red light. I just tested the battery and its all good??
@HTMR9 жыл бұрын
+Dali Ramon What are your symtopms when it does not start? Does it crank? Do you just hear a click sound? Be a little more descriptive.
@CFKDW11 жыл бұрын
can you link me to where you bought a new one?
@iviaverick526 жыл бұрын
My rotor usually hovers around 3.9 and 4 ohms. I saw that you were getting about that on the new rotor. Would you say this is fine to use?
@HTMR6 жыл бұрын
Yes. Is the insulation/coating on windings in good shape?
@jakepoole1604 жыл бұрын
Is there anything else other than the rotor/stator or rectifier that’ll keep it from charging?
@HTMR4 жыл бұрын
Sure, a bad battery. Also, a high power draw on a device that should only be on momentarily (brake lights etc..).
@jakepoole1604 жыл бұрын
MatthewMCRepair so how about when I test the charging rotor like you did ,it just beeps and grounds out like I’m touching the 2 ends together( I apologize for all the questions I just can’t find a shop to touch it)
@Kerring4 жыл бұрын
Hello! I have a piece of shit '80 CB650 that just randomly started running on three and misfiring. New spark plugs didn't do a thing. Could this be the problem?
@drakeb61682 ай бұрын
Would check points or cdi boxes if you have the electrical point system. Then would check coils.
@claytonstill23853 жыл бұрын
So if I have 0 ohms that means my rotor is toast?
@golfkey18 жыл бұрын
Any reason why after I changed the rotor my main fuse blew and the bike was dead. I put in a new fuse and it melted instantly.
@HTMR8 жыл бұрын
Not sure, but you do have a short somewhere.
@HTMR11 жыл бұрын
Search ebay.
@stephanmahler730410 жыл бұрын
Hello Matthew MC, Im running good (4.6) on the Ohms interrings. but checking the the same ring ohms , i am getting 1.2 on both rings (consistent). Would this indicate a faulty rotor? Thanks
@HTMR10 жыл бұрын
You should get 0 ohms on the same ring. Lightly clean the surface and try again. This test really does not mean anything other than you have continuity on that ring.
@aermotors10 жыл бұрын
Great video. What Stator is that you have there? It looks nice and heavy duty and not stock. Thanks.
@HTMR10 жыл бұрын
I have no idea. I assumed it was stock.
@aermotors10 жыл бұрын
Was doing some research and it's definitely an aftermarket one, that's good for you! Might get one myself. Looks like it's an Electrosport Industries: cl.ly/0x1m1I2e2m0V
@aermotors10 жыл бұрын
Actually that's a completely wrong image, that part #ESF901 is actually a rotor and not stator. Oh well. It's aftermarket.
@HTMR10 жыл бұрын
aermotorstudio Nice find. The "blue" part is a stator. The rotor is the part that spins. The stator "stays" in place.
@aermotors9 жыл бұрын
Yea I understand that. I ordered a new stator, rotor and reg/rect. Hope that will set me up right.
@robertciganovic9656 жыл бұрын
My rotor only shows 1,5 ohm. Does that meen its bad. The rectifier shows nothing
@HTMR6 жыл бұрын
Did you clean the slip rings? Same year make model?
@robertciganovic9656 жыл бұрын
MatthewMCRepair well i sprayed some elecric cleaner on it. I will try and use some sandpaper. I only got 12 v on My battery at high rpm
@robertciganovic9656 жыл бұрын
MatthewMCRepair and My stator shows 0,6 between the three yellow wires
@robertciganovic9656 жыл бұрын
MatthewMCRepair yes i did and removed it. Still 1.5. I will buy a new. But ill probably wont find one here in sweden