Go Back   DIY Go Kart Forum > Building Plans And Advice > Electric Projects

Notices

Reply
 
Thread Tools Display Modes
  #1  
Old 11-14-2018, 11:09 PM
Panhead5496's Avatar
Panhead5496 Panhead5496 is offline
Senior Member
 
Join Date: Jun 2015
Location: Athens, Georgia
Posts: 908
Thanks: 819
Thanked 179 Times in 150 Posts
Default Razors vehicles...potential "crotch rockets"?

So I was browsing eBay and came across a cheap Razor electric scooter that was being sold for parts. I kept digging and then came across some better deals on the electric dirtbikes being sold "as-is for parts".

This got me thinking: would it be worth it to buy something like this https://www.ebay.com/itm/Razor-MX650....c100752.m1982 and then mod them to go fast? I was thinking drop in some lipos (I have tons of lipos and know how they work/dangers/proper charging/etc from my RC hobby) and have a potential "crotch rocket" for relatively cheap, with no mess and noise (dang neighbors) of a minibike.

So the razor mx650 runs off of 36 volts. A 6s lipo is 22.2 volts (more when charged fully). So put 2 6s in the bike for nearly 50 volts of power...seems like the bike would really wake up. Now I know there are limitations to the speed control and the voltage it can handle, and I have no idea what the runtime would be, but I was thinking it might be a fun project. Or, put 2 6s lipos for double the capacity for longer runtimes and maybe re gear the bike.


Any thoughts on this?
Reply With Quote
  #2  
Old 11-15-2018, 07:01 AM
Functional Artist's Avatar
Functional Artist Functional Artist is offline
Senior Member
 
Join Date: Jul 2016
Location: Toledo, Ohio
Posts: 2,007
Thanks: 778
Thanked 759 Times in 602 Posts
Default

Trust me, your gonna want more than 36V.

IMO That's for kids.

If you want to play with 50VDC+ check out the Boma 60V 2,000W
https://www.ebay.com/itm/163370758805
...with the DIYGK discount, just over $200.00 delivered.
__________________
RESISTANCE IS FUTILE
Reply With Quote
The Following User Says Thank You to Functional Artist For This Useful Post:
Panhead5496 (11-15-2018)
  #3  
Old 11-15-2018, 03:23 PM
tomead tomead is offline
Junior Member
 
Join Date: Oct 2018
Posts: 6
Thanks: 3
Thanked 2 Times in 2 Posts
Default 48v

48v and an MY1020 motor and you will have something fun!
Reply With Quote
The Following User Says Thank You to tomead For This Useful Post:
Panhead5496 (11-15-2018)
  #4  
Old 11-15-2018, 09:05 PM
Panhead5496's Avatar
Panhead5496 Panhead5496 is offline
Senior Member
 
Join Date: Jun 2015
Location: Athens, Georgia
Posts: 908
Thanks: 819
Thanked 179 Times in 150 Posts
Default

Quote:
Originally Posted by Functional Artist View Post
Trust me, your gonna want more than 36V.

IMO That's for kids.

If you want to play with 50VDC+ check out the Boma 60V 2,000W
https://www.ebay.com/itm/163370758805
...with the DIYGK discount, just over $200.00 delivered.
Hehe fair enough. Wow that motor looks very nice! I am thinking about buying the razor bike and getting the upgrade motor for it as a winter project.

Quote:
Originally Posted by tomead View Post
48v and an MY1020 motor and you will have something fun!
That the same motor that was linked above?


So what approximate top speed can I expect for one of these systems on the razor dirtbike? I'm not a big guy (about 150lbs) so I'm thinking mid 20 mph?

---------- Post added at 10:05 PM ---------- Previous post was at 09:41 PM ----------

Check out the looks of this thing! https://www.ebay.com/itm/Razor-RSF65...1bc5:rk:5:pf:0 would be sweet to ride around on...need to check the local craigslist/FB marketplace and see about finding a broken one to mod.
Reply With Quote
  #5  
Old 11-19-2018, 12:23 AM
Quinc's Avatar
Quinc Quinc is offline
Senior Member
 
Join Date: Apr 2018
Posts: 213
Thanks: 160
Thanked 78 Times in 55 Posts
Default

Make sure you get the MX500 or MX650 (Full suspension) I have the Mx650 and ride the **** out of it. It is a blast for everyone from 6 year old kids to g'ma. Can easily fit another 12v 12ah battery for 48v.

Reply With Quote
The Following User Says Thank You to Quinc For This Useful Post:
Panhead5496 (06-08-2019)
  #6  
Old 06-08-2019, 04:40 PM
Panhead5496's Avatar
Panhead5496 Panhead5496 is offline
Senior Member
 
Join Date: Jun 2015
Location: Athens, Georgia
Posts: 908
Thanks: 819
Thanked 179 Times in 150 Posts
Default

Well guys, I caved and bought a Razor RSF650 (the street bike look with rear suspension) off eBay from one of those "for parts or repair only" sellers. Says the bike is all there. Might have a flat tire, might have a missing battery, or might just be missing one bolt. No way to know until it gets here! I guess I'll just wait and see

Probably going to get another battery for 48v and ride until I get bored of that, then do some major upgrading and get a 60v or so set up! I'd love to be able to run lipo batteries in it, as you can get some on sale from Hobbyking for fairly cheap.

Stay tuned.
Reply With Quote
  #7  
Old 06-11-2019, 12:57 PM
Quinc's Avatar
Quinc Quinc is offline
Senior Member
 
Join Date: Apr 2018
Posts: 213
Thanks: 160
Thanked 78 Times in 55 Posts
Default

First thing I do on mine is swap out the motor sprocket from 11T to 9T. Gives it a much needed increase in torque. I have a 1800w boma on my bench I still need to install as well.

http://www.diygokarts.com/vb/showthread.php?t=40558
Reply With Quote
The Following User Says Thank You to Quinc For This Useful Post:
Panhead5496 (06-11-2019)
  #8  
Old 06-11-2019, 04:58 PM
Panhead5496's Avatar
Panhead5496 Panhead5496 is offline
Senior Member
 
Join Date: Jun 2015
Location: Athens, Georgia
Posts: 908
Thanks: 819
Thanked 179 Times in 150 Posts
Default

Good stuff man! I will go ahead and order one. Where did you find yours?

I'm not a big guy (about 150lbs) so I'm expecting it to pull me well once I add another battery for 48v.
Reply With Quote
  #9  
Old 06-11-2019, 11:26 PM
Tpdingo Tpdingo is offline
Senior Member
 
Join Date: Nov 2017
Location: Bellmore, NY
Posts: 891
Thanks: 13
Thanked 256 Times in 215 Posts
Default

Quote:
Originally Posted by Panhead5496 View Post
Good stuff man! I will go ahead and order one. Where did you find yours?

I'm not a big guy (about 150lbs) so I'm expecting it to pull me well once I add another battery for 48v.
As carsandcameras says, for a faster ride, lay off the junk food .

And when in doubt, add another battery. Looks like fun, but LIPOs are where it's at. I rode one once, basically a 49cc pocket bike like that but with a I believe was a MY1020 motor and a lipo pack. Holy did that thing MOVE!! I was scared to give it full rip for my own safety and it not being my bike. But boy was it fun!
__________________
Give a wrench long enough and WD-40, and I can remove the world's rusty bolts.
Reply With Quote
The Following User Says Thank You to Tpdingo For This Useful Post:
Panhead5496 (06-12-2019)
  #10  
Old 06-12-2019, 09:09 PM
Panhead5496's Avatar
Panhead5496 Panhead5496 is offline
Senior Member
 
Join Date: Jun 2015
Location: Athens, Georgia
Posts: 908
Thanks: 819
Thanked 179 Times in 150 Posts
Default

LOL 150lbs is about as low as I want to go. Gotta eat

I hear ya on lipos, I do RC as my main hobby and they are awesome. If I can get the bike running as-is, I'll just add another 12v battery and run it. It's so hot here in Ga now I'd be worried about using a lipo this time of year.
Reply With Quote
  #11  
Old 06-17-2019, 05:05 PM
Panhead5496's Avatar
Panhead5496 Panhead5496 is offline
Senior Member
 
Join Date: Jun 2015
Location: Athens, Georgia
Posts: 908
Thanks: 819
Thanked 179 Times in 150 Posts
Default

The Razor was waiting on my when I got home from being out of town! Came in a huge box!

It is in excellent shape. The electrical system might be messed up, but I don't care as I just wanted the frame. Plan to upgrade to a 48v system as it will be fast enough to be fun, but still cost efficient.
Reply With Quote
The Following User Says Thank You to Panhead5496 For This Useful Post:
landuse (06-18-2019)
  #12  
Old 06-28-2019, 11:32 PM
Panhead5496's Avatar
Panhead5496 Panhead5496 is offline
Senior Member
 
Join Date: Jun 2015
Location: Athens, Georgia
Posts: 908
Thanks: 819
Thanked 179 Times in 150 Posts
Default

Well, the Razor RSF650 is complete.

I ordered a set of 4 12v 10ah batteries and got them wired up for 48v, as well as the kit off eBay with the variable speed controller and esc.

Did a few short runs already around the yard and it works well, except for the fact that it almost feels as if the motor is "slipping" (like a bad clutch would is the best I can describe it) when I try to pull a hill. I got it for the street so not too worried yet, but will look into it soon for sure.

Just need to get a charger and I'll be all set. Might be changing the motor sprocket for more torque but not sure yet. Once I ride it on the road I'll know more about the speed and torque.

I see a motor upgrade down the road as well, but if that means changing the whole controller/esc out then I'll just enjoy it for what it is!

I'll try and post some pics soon.
Reply With Quote
  #13  
Old 06-29-2019, 01:18 AM
Hellion's Avatar
Hellion Hellion is offline
Disc brakes'r for cowards
 
Join Date: May 2016
Location: Location: Location:
Posts: 4,772
Thanks: 1,721
Thanked 1,396 Times in 1,140 Posts
Default

Post pics first and add your wall of text later, I always say.

You keep dropping the ball, Pinhead.




You bought this? Awww, cute.
__________________
"I'm just here for the gasoline"
Reply With Quote
The Following User Says Thank You to Hellion For This Useful Post:
Panhead5496 (07-05-2019)
  #14  
Old 07-05-2019, 10:21 PM
Panhead5496's Avatar
Panhead5496 Panhead5496 is offline
Senior Member
 
Join Date: Jun 2015
Location: Athens, Georgia
Posts: 908
Thanks: 819
Thanked 179 Times in 150 Posts
Default

I didn't ever add pics did I? My bad. I'll try and add some soon. I got it finished up and took it for a ride down the driveway, and then realized my rear tire is flat. The tube is messed up so I got to order a new one.

It's not that bike, it's the MUCH cuter RSF650.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 12:42 PM.