Kickstart pinion and ratchet T140E - Triumph Forum: Triumph Rat Motorcycle Forums
Classic, Vintage & Veteran For Coventry and Meriden Models. Anything pre-Hinckley goes.

LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 11-07-2012, 03:28 AM Thread Starter
New Member
Grand Prix 125
Join Date: Oct 2010
Posts: 22
Kickstart pinion and ratchet T140E


I've made earlier posts on changing the kickstart quadrant and got good advice. I initially thought that the ratchet and pinion were ok, but have found one broken tooth and one half broken tooth on the pinion so decided to replace that and the pinion. I got the retaining nut off ok, but the pinion seems stuck on the lay shaft. I did try some judicious banging with a hammer (not much). Is there a technique to this. My fear is that the pinion has worn the lay shaft. Is there a good way to get the ratchet and pinion off?

Any advice greatly appreciated. It's a 1980 Bonnie T140E. When I fix this, I've only (pray to god) one more thing to sort - carburretion.

Arthur (Apiarist1)
apiarist1 is offline  
Sponsored Links
post #2 of 6 (permalink) Old 11-07-2012, 03:30 AM Thread Starter
New Member
Grand Prix 125
Join Date: Oct 2010
Posts: 22
Sorry, I meant the ratchet - I couldn't get the ratchet off.
apiarist1 is offline  
post #3 of 6 (permalink) Old 11-07-2012, 04:53 AM
Super Moderator
Team Owner
Main Motorcycle: Rickman T120
Join Date: May 2010
Location: Victoria Australia
Posts: 4,721
Other Motorcycle: T160,TR6
It could be a good idea to check the parts manual.It didn't change much from 1938 until last Meriden production,even L F Harris production.See Tecnhnical section "sticky".

The outer ratchet could be a tight fit on its splines.If you knock the shaft toward the primary side it should come clear of the mainshaft spline.Use a soft hammer or aluminium drift.The kick start pinion sits on a steel bush.The bush and pinion should easily slide off the mainshaft.
Mr.Pete is offline  
post #4 of 6 (permalink) Old 11-07-2012, 06:26 AM
Senior Member
Main Motorcycle: '77 Bonneville T140V
Garioch43's Avatar
Join Date: Oct 2010
Location: Aberdeen, Scotland
Posts: 999
The first tooth should be missing and the second ground down to allow for smooth engagement.

Sent from my iPhone using App

Sam Murray

Aberdeen, Scotland
Garioch43 is offline  
post #5 of 6 (permalink) Old 11-07-2012, 07:36 AM
Senior Member
Pole Position
Main Motorcycle: Triumph TR7
Join Date: Feb 2012
Location: Norwich, England
Posts: 3,876
Other Motorcycle: T140
Extra Motorcycle: Most of another T140
I had the same problem. In the end I did what Pete suggests, then, once off, I went over the splines on the ratchet with needle files very carefully to relieve them slightly (it is very hard steel so difficult to take too much off). I had to remove it again and that time, some tyre levers behind the pinion (with protection for the casting surfaces) did the trick.
JohnA is offline  
post #6 of 6 (permalink) Old 11-07-2012, 09:42 PM Thread Starter
New Member
Grand Prix 125
Join Date: Oct 2010
Posts: 22

Pete, did you mean tap the mainshaft?

Arthur (Apiarist1)
apiarist1 is offline  
Sponsored Links

Quick Reply
All posts must adhere to Forum Rules

Register Now

In order to be able to post messages on the Triumph Forum: Triumph Rat Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

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


Confirm Password:
Email Address
Please enter your valid email address, that can receive an automated confirmation message. Otherwise, you won't be able to gain full access.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Thread Thread Starter Forum Replies Last Post
Pinion Ratchet making noise after nut tightened? Tola Classic, Vintage & Veteran 5 05-10-2012 12:57 PM
'78 T140E Kickstart Lever Question chew652 Classic, Vintage & Veteran 6 07-20-2010 07:49 PM
Shift Lever Ratchet Question... biker7 Twins Technical Talk 44 08-14-2009 03:01 PM
Pinion Puller Tre900 Classic, Vintage & Veteran 1 03-19-2008 07:47 PM

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
Trackbacks are Off
Pingbacks are Off
Refbacks are On

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