Go Back   DIY Go Kart Forum > Building Plans And Advice > Go Kart Discussion

Notices

Reply
 
Thread Tools Display Modes
  #1  
Old 03-23-2019, 06:17 PM
Avery Avery is offline
Member
 
Join Date: Jul 2017
Posts: 49
Thanks: 10
Thanked 2 Times in 2 Posts
Default Brake master/caliper combo

Hey all I have what Iím guessing is a cheap Chinese cart. Itís a super small 2 seat kid cart. A KT20 Blade. I guess itís made by Kandi. It had no brakes so checking out the caliper / master I found the reservoir was empty. I tried bleeding it out but I couldnít get it to push the fluid out the bleeder. Anyone have a link for this cart? Itís a cool cart, electric start, reverse, high and low gear. Rack and pinion upper/lower control arms. I can get some pics if needed. Thank for the help!
Reply With Quote
  #2  
Old 03-23-2019, 10:23 PM
TBS99 TBS99 is offline
Junior Member
 
Join Date: Jan 2019
Location: Eatonville WA
Posts: 23
Thanks: 3
Thanked 9 Times in 7 Posts
Default

Pictures would help. Can't find that model number any where.
__________________
Tom S. SunL 250cc Carter 150cc Yerf Dog 150cc
Reply With Quote
  #3  
Old 03-24-2019, 07:11 AM
Avery Avery is offline
Member
 
Join Date: Jul 2017
Posts: 49
Thanks: 10
Thanked 2 Times in 2 Posts
Default

Ok added some pics of the part in question
Reply With Quote
  #4  
Old 03-24-2019, 07:17 AM
Avery Avery is offline
Member
 
Join Date: Jul 2017
Posts: 49
Thanks: 10
Thanked 2 Times in 2 Posts
Default

Click image for larger version

Name:	26612819-E637-4B77-8C47-821C52327840.jpg
Views:	8
Size:	265.6 KB
ID:	106031

Click image for larger version

Name:	9BA76218-A95D-4164-8D28-2CC85EB62379.jpg
Views:	8
Size:	252.8 KB
ID:	106032

Click image for larger version

Name:	11F0F2FF-0264-45D9-8221-2E99572C0E06.jpg
Views:	8
Size:	266.5 KB
ID:	106033

Click image for larger version

Name:	80B43771-F67B-4F34-BFA0-A8E97410312D.jpg
Views:	7
Size:	256.8 KB
ID:	106034

Click image for larger version

Name:	95ED6DAD-AD65-48D8-9872-C99B162F8440.jpg
Views:	5
Size:	232.3 KB
ID:	106035
Reply With Quote
  #5  
Old 03-24-2019, 08:18 AM
Karttekk Karttekk is offline
Senior Member
 
Join Date: Jul 2014
Location: Elizabeth, PA
Posts: 536
Thanks: 17
Thanked 130 Times in 111 Posts
Default

Any chance you could do a gravity bleed? Add brake fluid to the master with the bleeder open and see if fluid eventually starts dribbling out of it. Take the bleeder out and see if it's restricted. That or disconnect the brake line from the master then pump the pedal to see if the internal master seals are working. Start closest to the master to see where the fluid starts and work your way back to the caliper if an option. Could be a restriction in a brake line.

Thanks

---------- Post added at 09:48 AM ---------- Previous post was at 09:38 AM ----------

Looks like Blade is no longer in business. Maybe replace any parts needed with similar generic ones. Try http://www.buggydepot.com/ and ask if they can suggest something that will match up.

Thanks

---------- Post added at 10:17 AM ---------- Previous post was at 09:48 AM ----------

Here is a Blade KT70 manual, maybe it will help.

https://www.familygokarts.com/pdf/ma...ers_manual.pdf
Thanks

---------- Post added at 10:18 AM ---------- Previous post was at 10:17 AM ----------

Scroll to Blade

https://www.familygokarts.com/parts_manuals
Reply With Quote
  #6  
Old 03-24-2019, 11:18 AM
Avery Avery is offline
Member
 
Join Date: Jul 2017
Posts: 49
Thanks: 10
Thanked 2 Times in 2 Posts
Default

Thanks for the link. I pulled the bleeder out and blew they it, no restrictions. It wonít gravity bleed because of how itís configured. If you notice the 2 philips screws thatís the cover where fluid is added. The bleeder sits a little lower, I opened it but nothing. Then with it open I activated the the brake lever, and occasionally it would spit a little fluid out. Never enough to bleed it out tho

---------- Post added at 01:18 PM ---------- Previous post was at 12:53 PM ----------

I checked the link and they had the owners manual and set up manual but not parts manual:-/
Reply With Quote
  #7  
Old 03-24-2019, 08:22 PM
Karttekk Karttekk is offline
Senior Member
 
Join Date: Jul 2014
Location: Elizabeth, PA
Posts: 536
Thanks: 17
Thanked 130 Times in 111 Posts
Default

With limited resources and parts, all you can do now is guess cheap. No documentation so start with the cheapest component or replace the entire system; master, caliper and lines/hoses. This is one drawback of buying older, obsolete machines. You should be able to come up with matching or similar parts to get it going. At least we know what you're working on. Try plugging up the master where the brake line goes out and see if you can get a pedal that way. You'll know if the master is working at that point anyway.
Reply With Quote
  #8  
Old 03-25-2019, 04:38 AM
Avery Avery is offline
Member
 
Join Date: Jul 2017
Posts: 49
Thanks: 10
Thanked 2 Times in 2 Posts
Default

Thanks for the reply karttech. I’m a mechanic so I get start with the cheap and work your way from there lol. The issue I’m having is this is a self contained unit. The master and the caliper are one unit. I’m finding it hard to believe that this cart was the only one ever made in the history of go carts. A cable connects to the brake pedal and connects to the unit in question as you’ll see in the picture. That activates the master which of course in turn activates the caliper. Keep searching....
Reply With Quote
  #9  
Old 03-25-2019, 06:15 AM
Karttekk Karttekk is offline
Senior Member
 
Join Date: Jul 2014
Location: Elizabeth, PA
Posts: 536
Thanks: 17
Thanked 130 Times in 111 Posts
Default

That certainly is a unique setup. Any chance you can modify the brake system with something from another kart? Buy a master, brake lines and caliper from say American Landmaster or Hammerhead then weld a couple of support brackets where needed and upgrade the whole setup. It doesn't have to be hydraulic. My older kart had manual brakes with a spring loaded brake pedal, a long rod to the caliper and a caliper mounted over the rotor. Any markings on your master/caliper to identify a manufacturer? I'll keep researching this in the meantime.
Reply With Quote
  #10  
Old 03-25-2019, 09:25 AM
TBS99 TBS99 is offline
Junior Member
 
Join Date: Jan 2019
Location: Eatonville WA
Posts: 23
Thanks: 3
Thanked 9 Times in 7 Posts
Default

Pictures of the whole kart would help determine if other kart manufacturers might have used the same parts.
__________________
Tom S. SunL 250cc Carter 150cc Yerf Dog 150cc
Reply With Quote
  #11  
Old 03-25-2019, 12:57 PM
Karttekk Karttekk is offline
Senior Member
 
Join Date: Jul 2014
Location: Elizabeth, PA
Posts: 536
Thanks: 17
Thanked 130 Times in 111 Posts
Default

Not looking good. No one has ever heard of that setup or has any suggestions. More than likely you'll have to fabricate your own brake system.
Reply With Quote
  #12  
Old 03-25-2019, 01:39 PM
JTSpeedDemon's Avatar
JTSpeedDemon JTSpeedDemon is offline
Currently flathead-crazed
 
Join Date: Jan 2019
Location: Texas
Posts: 1,631
Thanks: 342
Thanked 181 Times in 166 Posts
Default

It's really not surprising no ones heard of it. Chinese manufacturers are only interested in making and selling them cheap.
To durn with replacement parts.
__________________
Local Bird Engineering Nut
Reply With Quote
  #13  
Old 03-26-2019, 07:02 AM
Avery Avery is offline
Member
 
Join Date: Jul 2017
Posts: 49
Thanks: 10
Thanked 2 Times in 2 Posts
Default

I think I'll start looking at bicycle hydraulic brake set ups
Reply With Quote
  #14  
Old 03-26-2019, 07:22 AM
landuse's Avatar
landuse landuse is offline
Moderator
 
Join Date: Nov 2010
Location: Pietermaritzburg, South Africa
Posts: 17,104
Thanks: 2,013
Thanked 3,374 Times in 2,747 Posts
Default

Quote:
Originally Posted by Avery View Post
I think I'll start looking at bicycle hydraulic brake set ups
Extremely bad idea!!! Anything that was designed for a bicycle will definitely not work on a kart. Bicycle brakes are designed to stop a light bicycle going at a slower pace than a heavy kart. This conversation has been had several times the last few years. Things never end well

Look for a good hydraulic setup of a motorcycle
Reply With Quote
  #15  
Old 03-29-2019, 11:22 AM
Avery Avery is offline
Member
 
Join Date: Jul 2017
Posts: 49
Thanks: 10
Thanked 2 Times in 2 Posts
Default

I’m thinking I may try to do a mechanical caliper if I can make the mounts work
Reply With Quote
  #16  
Old 03-29-2019, 11:51 AM
JTSpeedDemon's Avatar
JTSpeedDemon JTSpeedDemon is offline
Currently flathead-crazed
 
Join Date: Jan 2019
Location: Texas
Posts: 1,631
Thanks: 342
Thanked 181 Times in 166 Posts
Default

Mechanical should be less maintenance, but mechs are still very effective on a kart.
__________________
Local Bird Engineering Nut
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 05:28 PM.