Bafang m620 Maintenance

Рет қаралды 8,044

Жыл бұрын

A low mileage Bafang m620 motor that was getting very loud. We addressed the issue, cracked the case open and we’re surprised to see very little grease inside the case. If your Bafang motor is getting loud you might want to check it for proper grease amounts. What is the proper amount? More than what this one came with. Thanks for watching. Any questions just comment. Thank you
#bafang #bafangm620 #ebikemotorgrease#mountainbiking #mtblife #ebikeride#ebikemodification #emtb #mountainbike #ebikemods #ebike #ebikelife #sondors #sondorsrockstar
#rockstarebike #ebikereview #ebikemaintenance #addictedtotheoutdoors
#ebikemotorgrease
#bafangmotorgrease #greaseebikemotor

Пікірлер: 66

@jaycarneygiants Жыл бұрын

Very helpful Doug. This is on my list next!

@SimplePleasuresMTB Жыл бұрын

It’s fairly easy. Just take your time, try not to strip anything while removing the hardware. I’ve had some bikes that have had very stubborn or over tightened parts to where we had to use air impact tools to remove that sprocket ring nut😬 This bike everything went very straight foreword and smooth.

@Zetler Жыл бұрын

Rockstar needs to sponsor this channel.

@SimplePleasuresMTB Жыл бұрын

That would be nice. I did get my bike free from Storm, I used to send my videos to one of their social media personnel and they we’re going to use parts they wanted from my videos on different platforms, I honestly don’t know whatever happened to it.

@artc1922 Жыл бұрын

awesome video once again Doug! I'm going to try and grease mine this month, it's a bit colder up here in Canada at this time so now is a good chance to take it apart, it's definitely a loud motor so hopefully this helps with the noise too

@fredred8371 Жыл бұрын

I work at a bike shop where we install BBS02's all the time and we got to the point where we just automatically open it up and grease it because apparently the bafang factory can't afford enough grease or something.

@SimplePleasuresMTB Жыл бұрын

What type of grease are you using?

@krix0043 9 ай бұрын

@@SimplePleasuresMTB MOBILITH SHC 100 is the best greas for bafang motors.

@SimplePleasuresMTB 9 ай бұрын

@@krix0043 that’s what I’ve heard too.

@robertvillegas7472 Жыл бұрын

Thanks Doug! I have 110 miles on mine now , I’m going to pull the motor n CH geese it . Took it on a long uphill here at Parker Ranch on the Big Island . Worried about it being under greased . Cheers 👍🏾🤙🏾

@robertvillegas7472 Жыл бұрын

I meant Corn Head GREESE 🥴

@SimplePleasuresMTB Жыл бұрын

It would be a good idea, not saying they all are lacking grease like this one was…but just for peace of mind. Take your time and just make sure you are disconnected from the battery.

@jamesguimond2271 4 ай бұрын

@@SimplePleasuresMTBHi Doug I bought a Yukon Core from Voltbike end of March 2022 & with in the 1 year warranty I put in nearly 10,000km sent the motor to Voltbike under warranty for repair & got it back quick & nearly 12,000 km same problem as the first time I came across your channel about using Cornhead grease & part of Voltbike Yukon Core owners group which I learned that Biktrix recommends 750km or once a month. I have been regreasing with Cornhead grease and no problems

@bobbylee9000 Жыл бұрын

You should be sponsored by Sondors, in fact they should send you a free Rockstar to keep and teardown.

@SimplePleasuresMTB Жыл бұрын

They did give me my bike. So they sorta did “sponsor me” at first. I would send them footage of all my videos in the beginning and they would use what they wanted from my videos. I don’t know if they used the footage or what happened?

@MarioGoatse 10 ай бұрын

They look like a nice bike, but would love to see a lighter model. 83lbs is 30lbs heavier than my hardtail Cube Reaction Hybrid with the Bosch CX. Been looking into another e-bike recently with a Bafang M620 or similar. Nice motors

@SimplePleasuresMTB 10 ай бұрын

Yeah I would stay away from Sondors unless you are a bike mechanic 😂rumor has it…well I’d just say look elsewhere 😉Sondors not doing too good right now. It was a great bike once I worked out all the “issues” for my type of riding. Thank you for watching and commenting 👍🏻

@COUREURSdesBOIS88 Жыл бұрын

Outstanding tutorial Doug! Just did mine tonight! Your vids were a great help for sure! By chance-would you happen to know the torque specs of the 6 screws for the case when putting back together?

@SimplePleasuresMTB Жыл бұрын

Thank you. I don’t know the torque specs but 5Nm applied evenly should be plenty

@boblatkey7160 Жыл бұрын

Great job! The first thing I notice is a nice tidy garage. Only then will I watch the video, and I can see you're an excellent mechanic. Come up to Ojai sometime and do the Sisar Road and Gridley Trail Loop. It's about 40 miles and about 4500 feet of climbing! We all ride specialized turbo levo's, the EMTB is the funnest damn toy I have ever had in my life!

@SimplePleasuresMTB Жыл бұрын

Thank you. I’ve done the Nordoff Loop a couple times but I’d love to try the Sisar to Gridley. You guys have a group on Strava?

@jreyna1224 Жыл бұрын

Great video! From start removing the motor to finish how long does it normally take ?

@SimplePleasuresMTB Жыл бұрын

Probably 2 hours first time. Thanks for watching

@weldonthompson5410 Жыл бұрын

My Eunorau Spectre came with an M620. died after 1 month. Retailer suppied new control in drive and it lasted 40 KM

@SimplePleasuresMTB Жыл бұрын

24 miles? That’s it? Ever find out what killed it? They are pretty robust motors normally.

@OldCootProductReviews 10 ай бұрын

Great vid Doug! I have a BBSHD. Do you know offhand what the re-grease schedule is for that? Ever 1000 miles, 2000? 6000? 🤷‍♂️

@SimplePleasuresMTB 10 ай бұрын

Not sure but my motor was loud! I’d say at least a 1000 mile regrease

@magzire Ай бұрын

@@SimplePleasuresMTBso was quieter after adding more grease?

@bobbylee9000 Жыл бұрын

Hi Doug,, 3:08 why did you replace this main gear? was there something broken in the internal clutch. Just curious, when I opened, cleaned and regreased my M620 I thought there could be a problem since everything was so dry inside (and loud).. Thanks for all your vids.

@SimplePleasuresMTB Жыл бұрын

We had first thought the loud noise was due to the rotor gear being worn out as I’ve seen on other motors, this motor is fairly new with low miles, but the owner went ahead an ordered the gears (just in case) the rotor needed replacement. After inspection we decided it was fine, no wear that we could see or feel. Just because we had the replacement third gear and it was easy to drop in, we decided to just use it. Thanks for watching.

@jaycarneygiants Жыл бұрын

6:30 We have a Luna X2 my wife and son share. I didn't go with Luna's "ludicrous" mode because I read so many problems about it. Bafang has been so bulletproof for me, why mess with a good thing by changing the programing?

@mariodabek1441 10 ай бұрын

speed that's why, i swapped my x1 to luda 2 weeks ago, its like a new bike, 2500 watts of raw power :)

@christopheragurkis8959 4 ай бұрын

Fantastic video!!! Have you guys replaced a rotor and had to recalibrate the motor before???

@SimplePleasuresMTB 4 ай бұрын

The rotor yes, but recalibrate no. Easy motor to work on, workhorse

@christopheragurkis8959 4 ай бұрын

@SimplePleasuresMTB interesting, I just replaced the rotor with the new updated 15 tooth gear and the second gear and the motor won't go over 6 mph. Supposedly, I have e to recalibrate it. I have a 961 bafang calibration display I had to buy to fix this issue. Hopefully it all works. These new gears are supposed to be a lot quiter.

@ericswenson8467 3 ай бұрын

I’ve read something like this before too and it’s always made me paranoid about taking my m620 apart! I wonder what makes your need calibration?

@christopheragurkis8959 3 ай бұрын

@ericswenson8467 I bought the little 50 dollar calibration module, went through the process and all is good.

@J-K-L-IV Жыл бұрын

Bafang manual recommends 45-50nm on the cranks.

@SimplePleasuresMTB 11 ай бұрын

Thanks for sharing. They do have a tendency to come loose. I replaced my crank arm bolts with Truvativ ones. Truvativ 11.6900.002.050 M15 Capless Crank Arm Bolt a.co/d/19T9DJH

@rickc2222 Жыл бұрын

From what i've read, cornhead grease is semi- fluid - it flows when it gets warm. meant for sealed gear boxes. with the small amount you put on, I have a feeling it will all drip off once the motor gets warm/hot and/or fling it all off - is the motor sealed enough to fill it about 15-20% full to ensure the gears get a grease bath?

@SimplePleasuresMTB Жыл бұрын

Yes, that was my idea. The grease that comes in it is heavy and basically sticks to the case and never gets back on the surface of the gears. I could have used more, but so far it’s smooth and running good. The HPI on Cornhead is 1, like you said, when warm it goes to a semi liquid state, then back to solid as it cools.

@rickc2222 Жыл бұрын

@@SimplePleasuresMTB yes but what im saying is with so little of it in there, it will flow to the bottom of the motor and starve the gears of lube - so you kind of need to treat it more like an oil bath because it flows to the bottom of motor...a bit more and it might be sufficient.... would be interesting to see where the grease is sitting after a season of riding- or even a dozen rides or so...

@SimplePleasuresMTB Жыл бұрын

@@rickc2222 yeah I might do that in a future video. I’m curious too. I put an external temp gauge on the motor itself and it hasn’t even came close to the lowest temperature on the the gauge (80F). Even on a warm day.

@rickc2222 Жыл бұрын

@@SimplePleasuresMTB well thats good. im just building up my new bike right now - should probably crack the motor open and add more grease - read complaints about there not being enough....gonna hold off on the JD cornhole grease for now till I know more.

@SimplePleasuresMTB Жыл бұрын

@@rickc2222 yeah I got the idea from a guy in a forum, what he said and how he explained it made sense to me. My motor and a few others were very loud so I decided to crack mine open and see what was going on. After I did the CH grease treatment I did about 4 more and so far they are quieter and still going strong

@jamesguimond2271 4 ай бұрын

Hi Doug are you still using Cornhead grease in the Bafang Ultra. I came upon your channel where you have been regreasing with Cornhead grease

@SimplePleasuresMTB 4 ай бұрын

I sold the bike but it is still out there running great. I re-greased about 3-4 Bafang motors with the Cornhead and to my knowledge they are still running good

@josevazquez4374 4 ай бұрын

Is there a link you can share where I can purchase the main gear from? Thank you

@SimplePleasuresMTB 4 ай бұрын

www.greenbikekit.com

@6295607 Жыл бұрын

I got a Frey AM 1000 circa 2018 probably 3.0 frame with Bafang Ultra. Never opened. 8000 km. Should I do something with it?

@SimplePleasuresMTB Жыл бұрын

As long as it’s not slipping or too noisy I’d just run it

@6295607 7 ай бұрын

Ok finally one of the internal gears broke. Does these come with teflon gear? I haven't opened it yet - need to get to a shop which has the tools. How much grease to add? Is automotive heavy grease ok?

@WonTONgaming218 19 күн бұрын

im having a difficult time finding the tool to get that nut off the chainring, so i can open the motor up. i have one but it wasnt seep enough and the wrench version cant latch onto the nut. can u send me a link by any chance? any help is appreciated.

@SimplePleasuresMTB 18 күн бұрын

@@WonTONgaming218 Bikehand YC-29BB-2A is the part number, here’s a link- BikeHand Bicycle Bottom Bracket Removal Crank Tool - compatible with Shimano Hollowtech II 16-Notch 44mm External BB Remember it’s a reverse thread and on some applications I had to resort to using an air impact wrench!

@WonTONgaming218 18 күн бұрын

@@SimplePleasuresMTB THANK YOU SIR!!! I appreciate you taking the time to respond and help. Have a great day :)

@SimplePleasuresMTB 18 күн бұрын

You’re welcome. Any other questions just ask. I have videos of everything I’ve done to the Rockstar

@SimplePleasuresMTB 11 күн бұрын

@WonTONgaming218 thank you

@slimdunkin117 Жыл бұрын

Was anything even wrong with his motor? Why’d he want it opened

@SimplePleasuresMTB Жыл бұрын

It was new and it was embarrassingly loud he said

@jaycarneygiants Жыл бұрын

How many miles on that motor Jumpy?

@badbackbasics9735 Жыл бұрын

I put about 1000 on my first motor and after about seven months it started getting embarrassingly loud. I sent Sondors a video to show how loud it was and they sent me a box to send them the bike. They agreed it was too loud and put a brand new motor on it. So, this is my new motor. It only had about 300 miles on it and again, started to get too loud. This was the fix. Feels and sound MUCH better now.

@slimdunkin117 Жыл бұрын

@@badbackbasics9735 can u share the video? I want to hear what type of noise it makes