Clutch engagament - Pocket Bike Forum - Mini Bikes
 
LinkBack Thread Tools
post #1 of 10 (permalink) Old 06-20-2019 Thread Starter
MGC
verified
 
Join Date: Mar 2016
Posts: 22
Clutch engagament

Hello

Not sure if this is normal or not.

When I give my bike the throttle,the clutch does not engage until the the throttle is about 3/4 full.

Does anyone know if this is correct or when the clutch should engage?

Thank you
MGC is offline  
Sponsored Links
Advertisement
 
post #2 of 10 (permalink) Old 06-20-2019
BUILDEM,WRECKEM,REBUILDEM
 
CAM2's Avatar
 
Join Date: Mar 2008
Posts: 20,905
Re: Clutch engagament

Quote:
Originally Posted by MGC View Post
Hello

Not sure if this is normal or not.

When I give my bike the throttle,the clutch does not engage until the the throttle is about 3/4 full.

Does anyone know if this is correct or when the clutch should engage?

Thank you
Its a racebike and the clutch should engage around 8k rpm's.....

If you dont have an RPM gauge its gonna be hard to figure out....I use a TrailTech TTO..........




Chances are youre gonna need a new clutch...remove the clutchbell housing and take a peek......

Good Luck

Cut
Up
Stuff
To
Obtain
Masterpiece

Last edited by CAM2; 06-20-2019 at 07:21 PM.
CAM2 is offline  
post #3 of 10 (permalink) Old 06-21-2019 Thread Starter
MGC
verified
 
Join Date: Mar 2016
Posts: 22
Thanks for the info

I have never never taken the clutch apart.

What would I be looking for?
MGC is offline  
Sponsored Links
Advertisement
 
post #4 of 10 (permalink) Old 06-21-2019
BUILDEM,WRECKEM,REBUILDEM
 
CAM2's Avatar
 
Join Date: Mar 2008
Posts: 20,905
Re: Clutch engagament

Quote:
Originally Posted by MGC View Post
Thanks for the info

I have never never taken the clutch apart.

What would I be looking for?
Youre only removing the clutchbell housing to do the inspection.Its easy..

You'd be looking for clutchpads that are burnt or too thin past its effectivity,rusted and highly oxidzed looking parts,glazed clutchdrum,,also check that the clutchbell drum bearing rolls smoothly......

If all looks well try roughening up the clutchpads plus deglazing the clutchdrum with 100 grit sandpaper then try backing off on the 3 adjustment nuts a half a turn each or whats also referred to as "3 flats of the nut" then retry.

Good Luck

Cut
Up
Stuff
To
Obtain
Masterpiece

Last edited by CAM2; 06-21-2019 at 06:42 PM.
CAM2 is offline  
post #5 of 10 (permalink) Old 06-22-2019 Thread Starter
MGC
verified
 
Join Date: Mar 2016
Posts: 22
Thanks I will take apart and have a look.
MGC is offline  
post #6 of 10 (permalink) Old 06-23-2019 Thread Starter
MGC
verified
 
Join Date: Mar 2016
Posts: 22
Hello

Thanks again for your help.

I have taken the clutch out, springs are rusted so I have ordered a new one.

In looking at the bell housing it does not turn freely. I am looking to replace but this one is held on by 3 screws and everything online I see to purchase is 4 screws only, any ideas?

Thanks
MGC is offline  
post #7 of 10 (permalink) Old 06-23-2019
BUILDEM,WRECKEM,REBUILDEM
 
CAM2's Avatar
 
Join Date: Mar 2008
Posts: 20,905
Re: Clutch engagament

Quote:
Originally Posted by MGC View Post
Hello

Thanks again for your help.

I have taken the clutch out, springs are rusted so I have ordered a new one.

In looking at the bell housing it does not turn freely. I am looking to replace but this one is held on by 3 screws and everything online I see to purchase is 4 screws only, any ideas?

Thanks
Heres a link to what youre looking for............

https://www.ebay.com/itm/Gear-box-6T...pe!11767!US!-1

Just so you know your bike is known as a MT-A4 39cc watercooled C1/B1 Blata replica....

It helps a lot in finding parts when you know the technical name........

It maybe a lot cheaper to buy a new bearing and replace it depending on whether or not you own an 18v impact gun and a gator grip socket to remove the pinion without damaging it...



Good Luck
Attached Images
File Type: jpg 037.JPG (25.0 KB, 2 views)

Cut
Up
Stuff
To
Obtain
Masterpiece

Last edited by CAM2; 06-23-2019 at 09:13 PM.
CAM2 is offline  
post #8 of 10 (permalink) Old 06-23-2019
Re: Clutch engagament

I have seen them for $20, I have three, 6, 7 and 8 tooth. I would get a 7 tooth pinion one, search eBay, 39cc 2 stroke C1 water cooled pocket bike parts. You can change the rear sprocket teeth 55 to 78 teeth also.

Empty Pockets Racing: The difficult we do, the impossible takes longer.....
EPR is offline  
post #9 of 10 (permalink) Old 08-12-2019
verified
 
johnni's Avatar
 
Join Date: Nov 2012
Age: 31
Posts: 36
I think I will need to buy a new clutch soon as well as a spare for my blata b1 rep w/c bike. Does anyone have a link in which clutch I should buy ?

Thanks
johnni is offline  
PBP RACER
 
Chrisi's Avatar
 
Join Date: Aug 2018
Age: 36
Posts: 155
Can over you 3 different clutches

Zocchi Carbon 2 shoe 65€
Zocchi Carbon 3 shoe 75€
Blata original 3 shoe 65€

All + shipping
Attached Images
File Type: jpg 15655977712564060658146913697550_1565597781186.jpg (464.0 KB, 4 views)

Get your kick with 2 stroke mix
Chrisi is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Pocket Bike Forum - Mini Bikes forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may not post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome