Disabling 919 Gas Tank Lock - Wrist Twisters
 3Likes
  • 1 Post By robtharalson
  • 1 Post By Monkeywrench
  • 1 Post By CB700S
 
Thread Tools Display Modes
post #1 of 15 Old 10-05-2015, 12:52 AM Thread Starter
Why's everything on fire?
 
CB700S's Avatar
 
Join Date: Mar 2011
Location: Dallas
Posts: 2,254
Rep Power: 1
 
Garage
Disabling 919 Gas Tank Lock

So, this is sitting on my desk.







It's a Chinese clone cap and ring mated to an original CBR600F4i lock core. Unfortunately, I don't have a key to this. I'd like to be able to swap it onto my bike to get the original one powder coated. I've learned how to take the lock cylinder out from videos on YouTube. Does anyone have any idea how I could modify the lock cylinder so any key or even a screwdriver could open it?

I could always do the "break it with a screwdriver" trick, but I'd rather not do that.

1986 Honda Nighthawk 700S
2002 Honda 919
CB700S is offline  
Sponsored Links
Advertisement
 
post #2 of 15 Old 10-05-2015, 05:12 AM
Old, Bold rider
 
robtharalson's Avatar
 
Join Date: Jan 2007
Location: Aurora, Colorado
Posts: 2,331
Rep Power: 1
 
Garage

Awards Showcase
Donation Veteran Community Leadership 
Total Awards: 3

Does your 919 key fit in the lock? If you know how to remove the lock cylinder and the key fits you're golden. Once the cylinder is out remove all the wafers and springs, and place just one wafer and spring that coincides with a cut on the key, and you have a locking cap without all the work of putting all the wafers back in (at least the ones that would match the key).

If, however, the key won't fit, just remove all the wafers and springs and leave them out. Anything that can engage the slot in the lock can then be used to open the cap. I have even filed down a penny into a sort of "T" shape and tapped it into the lock to serve as a handle to open the cap during an endurance race for quicker refueling. That probably wouldn't fit under the cover in this case.

Rob
WxN likes this.

If it has already been done, it is safe to assume it is possible to do it.
On the other hand, if it has not been done never assume it is impossible to do it.
------- Rob --------
robtharalson is offline  
post #3 of 15 Old 10-05-2015, 09:55 AM
(Quintus) Pilus Prior
 
beefsalad's Avatar
 
Join Date: Dec 2007
Location: San Antonio, TX
Posts: 2,776
Blog Entries: 51
Rep Power: 1
 

Awards Showcase
Donation 
Total Awards: 1

There are only 3 tumblers in the tank lock if memory serves me correctly...it shouldn't be hard to pick. I'd be surprised if a locksmith took more than 5 seconds and charged you for it if you took it to them.

if you love your motorcycle, set it free.. if it comes back and hits you.. you highsided
beefsalad is offline  
 
post #4 of 15 Old 10-05-2015, 05:41 PM
Ian
 
HeliMech's Avatar
 
Join Date: Jul 2009
Location: Nova Scotia, Canada
Posts: 3,313
Rep Power: 1
 
I took my mis matched set or locks to a local locksmith. For $20 he gutted the seat lock and gas cap lock so that they work with any key .... or flat key like object now.

HeliMech is offline  
post #5 of 15 Old 10-05-2015, 06:18 PM
notsowisecracker
 
Monkeywrench's Avatar
 
Join Date: Jan 2010
Location: Salem, OR
Posts: 261
Rep Power: 1
 
If you are able to get the lock cylinder out you can stick your key it while out, and file the wafers down to fit.
WxN likes this.

Monkeywrench is offline  
post #6 of 15 Old 10-06-2015, 06:50 PM
Community Moderator
 
g00gl3it's Avatar
 
Join Date: Jun 2009
Location: Idaho
Posts: 11,613
Rep Power: 1
  

Awards Showcase
Wrist Twisters Event Attendance Wrist Twisters Event Attendance Wrist Twisters Event Attendance 
Total Awards: 3

This might help show you how to disassemble it, but it still might require the key:


2009 Aprilia Tuono - Ginger
2001 XR650R BRP (Big Red Pig)
2006 Honda 599 - Ex wrecked it :-D
2007 Honda CB900F (sold)
2006 Honda VTX 1300C (sold)
YouTube Channel
g00gl3it is offline  
post #7 of 15 Old 10-06-2015, 07:00 PM Thread Starter
Why's everything on fire?
 
CB700S's Avatar
 
Join Date: Mar 2011
Location: Dallas
Posts: 2,254
Rep Power: 1
 
Garage
Yeah, saw that video. I do have a set of lock picks if needed, I just don't want to be picking the lock on my own bike at a gas station. It invites unwanted appearances by the police. :P

1986 Honda Nighthawk 700S
2002 Honda 919
CB700S is offline  
post #8 of 15 Old 10-24-2015, 04:02 AM Thread Starter
Why's everything on fire?
 
CB700S's Avatar
 
Join Date: Mar 2011
Location: Dallas
Posts: 2,254
Rep Power: 1
 
Garage
Posting for future readers' archival reference - assuming our new overlords don't manage to kill the forum through continued mismanagement...

Quote:
Originally Posted by beefsalad View Post
There are only 3 tumblers in the tank lock if memory serves me correctly...it shouldn't be hard to pick. I'd be surprised if a locksmith took more than 5 seconds and charged you for it if you took it to them.
Turns out it actually has five pins. Here's the cylinder as you extract it from the lock core, with three of the wedges removed.



Here's the removed pins and their springs out of the cylinder.



You can use your fingers to remove the pins but you will likely need a pick to remove the springs.

If the cap assembly has already been removed from the tank, you do *not* require the key to remove the lock cylinder. If you want to make this an "any key or a screwdriver can open this" cap, remove all the pins and springs and put it back together. Either way, if you're having problems with your lock, you can strip it down this far, clean up the ancient grease it shipped with, regrease and reinstall.

Here's the lock cylinder reinstalled in the (stripped) core.


The core and cylinder with the rubber cover/diaphragm back over the serpentine fume vent/air equalization vent path.


This is the back of the cap that you screw the core down onto.


This tab with a square hole on the core is the outlet of the tank vent path.
WxN likes this.

1986 Honda Nighthawk 700S
2002 Honda 919
CB700S is offline  
post #9 of 15 Old 10-25-2015, 09:01 AM
(Quintus) Pilus Prior
 
beefsalad's Avatar
 
Join Date: Dec 2007
Location: San Antonio, TX
Posts: 2,776
Blog Entries: 51
Rep Power: 1
 

Awards Showcase
Donation 
Total Awards: 1

This reminds me.....I did take video of the locking bits I tore apart, I'll be damned if I remember where they are though.

if you love your motorcycle, set it free.. if it comes back and hits you.. you highsided
beefsalad is offline  
post #10 of 15 Old 10-27-2015, 11:49 PM Thread Starter
Why's everything on fire?
 
CB700S's Avatar
 
Join Date: Mar 2011
Location: Dallas
Posts: 2,254
Rep Power: 1
 
Garage
And here's the original one, now powdercoated.


1986 Honda Nighthawk 700S
2002 Honda 919
CB700S is offline  
post #11 of 15 Old 10-28-2015, 05:13 AM
Tribunus Laticlavius
 
voodooridr's Avatar
 
Join Date: Jan 2006
Location: Salinas, CA
Posts: 4,599
Rep Power: 1
 
Sweet, a nice polished stainless bolt kit from ProBolt and you're done


Dan
voodooridr is offline  
post #12 of 15 Old 10-28-2015, 06:42 AM Thread Starter
Why's everything on fire?
 
CB700S's Avatar
 
Join Date: Mar 2011
Location: Dallas
Posts: 2,254
Rep Power: 1
 
Garage
Quote:
Originally Posted by voodooridr View Post
Sweet, a nice polished stainless bolt kit from ProBolt and you're done
Does it come in black? :P

1986 Honda Nighthawk 700S
2002 Honda 919
CB700S is offline  
post #13 of 15 Old 10-28-2015, 08:04 AM
Tribunus Laticlavius
 
voodooridr's Avatar
 
Join Date: Jan 2006
Location: Salinas, CA
Posts: 4,599
Rep Power: 1
 
Actually I think they do have a black anodized aluminum set


Dan
voodooridr is offline  
post #14 of 15 Old 09-04-2019, 07:43 AM
Tirone
 
Join Date: Sep 2019
Posts: 1
Rep Power: 1
 
Quote:
Originally Posted by HeliMech View Post
I took my mis matched set or locks to a local locksmith. For $20 he gutted the seat lock and gas cap lock so that they work with any key .... or flat key like object now.
It's really very easy for a locksmith to re-key mismatched gas cap lock.

RobertSteller is offline  
post #15 of 15 Old 09-11-2019, 08:22 AM
Tirone
 
Join Date: Sep 2019
Posts: 1
Rep Power: 1
 
I don't think it will be easy for a locksmith to re-key that particular lock, dealer must be the suitable option.

JoshClayton is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Wrist Twisters 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
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may 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 Off
Pingbacks are Off
Refbacks are Off

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