For those that were interested below are the inserts I made to help with tuning the standard CV carbs to facilitate using pod filters and deleting the air box:

Started with a 120mm aluminium intercooler connecter pipe which had a 2” (50.8mm) diameter with the flares coming out to just under 54mm (or 2 and 1/8”)

I cut it in half and cut the ends off to the peak of the flares and gave the lips a good sanding.

They matched up to the carb mouths almost perfectly.?

Once inside the filters they reduce they sit two thirds of the way in so still allow for far more then standard airflow but hopefully should keep the flow steady so that the jet needle and slide aren’t jumping about. Just going to fit them now so will post an update of how it worked out later.?

On 8/11/2022, at 2:09 PM, Ding <vocationalassessment@...> wrote:

?

Cheers for the advice, I have a copy of the manual and couldn't find the ignition barrel in there at all.

Problem I have is it spins in the barrel but does nothing. Meanwhile the Steering Lock remains on wherever the key is positioned. It?does click in when I turn it and then?it becomes much harder to move it again.

As soon as its "free" the cylinder rotates but does nothing?

Detached?from the sensors at the bottom maybe. Hard to diagnose without it being in the manual.

Thanks again Ding

On Tue, 8 Nov 2022 at 14:03, ADHDOOM <adhdoom@...> wrote:

Hi Ding,

I think I found the same thing when I originally looked at removing my key barrel as well now that I think about it. The screws at the bottom were some sort of security ones. I just uploaded a pdf copy of the service and repair manual to dropbox:

You might be able to find something in there helpful. I would try some wd40 or some silicon spray and also spray it down the key barrel as well. It's ammazing how easily a key turns when lubricated well. I thought my front door key was fornicated till I was advised to spray some silicon in to it.

Lemme know how you get on.

On Tue, Nov 8, 2022 at 12:31 PM Ding <vocationalassessment@...> wrote:

Thanks for replying, there is of course no info on how to remove the ignition barrel in the manual. - Stopping thieves I guess. Looks like the screws are one use snap off underneath the barrel too - may look to see if I can grease the pin in situ??

On Mon, 7 Nov 2022 at 22:37, ADHDOOM <adhdoom@...> wrote:

Hi Ding,

Off the top of my head I think the key pushes out a pin to lock the steering so the key might be moving back and forward but the pin is stuck and therefore not returning. You might find once you remove the barrel assembly it just needs a little jiggle and some lube… though personally I’ve been considering removing the barrel and hiding a kill switch too.?

I’m not a fan of the overly large dash and want to cut back to just a single small Speedo which I think would look nice nested where the key currently resides. Just grind the loop off of the top tree and you’ve got a nice little half round recess.?

Had the aluminium tube arrive today and should hopefully be taking it to my friends workshop tomorrow to cut it to size. Will post pics once I’m done.?

On 7/11/2022, at 9:27 PM, Ding <vocationalassessment@...> wrote:

?

Would be very keen to hear how your Pod filters are going - cant help with the throttle sensor though I am afraid.

Had a weird?issue with the ignition barrel though. Key turns, but does nothing and the steering lock is now on permanently!. Thinking of removing the whole shebang and hiding a kill switch.

What do you reckon?

Cheers for your time.?

Ding.

On Sun, 6 Nov 2022 at 13:26, ADHDOOM <adhdoom@...> wrote:

Hi peeps,

Got a couple of quick questions/requests that I'm hoping someone on here has the technical knowledge/effort to spare to answer for me:

Firstly does the throttle sensor adjust the timing when the bike is in use or is it just there to facilitate the function of the kickstand safety feature? I know that when the kickstand is still down and you drive to rev it kills the power so obviously the throttle sensor is involved in this feature but does it actually do anything else? If the kickstand safety feature was removed along with any associated elements could the throttle sensor then also be removed? I've played round with bikes that have CDI ignition systems like this before and none of the earlier bikes I've messed with have had or needed a throttle sensor so I am curious to know if the kickstand safety kill is all that it is there for.

Secondly would someone be able to post me a pic of the underside of the carbs? I had my float bowls off and was about to start putting them back on and have found a fifth slightly longer screw that I am not sure actually came off of the carb or is simply one that was left on my bench when I started.

Also I am in the process of fitting pod filters to the standard CV carbs and am trying a custom trick of making some short aluminum tube inserts to sit inside the pod filter that reduce ever so slightly to create a restriction and therefore maintain the constant velocity required to keep these carbs working as they should. If anyone's interested I'll post up pics of my custom inserts and of the results of how it runs etc... and before anyone says why am I putting pod filters on and to just leave the standard air box it's because I am going to start modifying the frame so there is no room for the standard airbox.

Thanks in advance!

Hi Ding,

I think I found the same thing when I originally looked at removing my key barrel as well now that I think about it. The screws at the bottom were some sort of security ones. I just uploaded a pdf copy of the service and repair manual to dropbox:

You might be able to find something in there helpful. I would try some wd40 or some silicon spray and also spray it down the key barrel as well. It's ammazing how easily a key turns when lubricated well. I thought my front door key was fornicated till I was advised to spray some silicon in to it.

Lemme know how you get on.

On Tue, Nov 8, 2022 at 12:31 PM Ding <vocationalassessment@...> wrote:

Thanks for replying, there is of course no info on how to remove the ignition barrel in the manual. - Stopping thieves I guess. Looks like the screws are one use snap off underneath the barrel too - may look to see if I can grease the pin in situ??

On Mon, 7 Nov 2022 at 22:37, ADHDOOM <adhdoom@...> wrote:

Hi Ding,

Off the top of my head I think the key pushes out a pin to lock the steering so the key might be moving back and forward but the pin is stuck and therefore not returning. You might find once you remove the barrel assembly it just needs a little jiggle and some lube… though personally I’ve been considering removing the barrel and hiding a kill switch too.?

I’m not a fan of the overly large dash and want to cut back to just a single small Speedo which I think would look nice nested where the key currently resides. Just grind the loop off of the top tree and you’ve got a nice little half round recess.?

Had the aluminium tube arrive today and should hopefully be taking it to my friends workshop tomorrow to cut it to size. Will post pics once I’m done.?

On 7/11/2022, at 9:27 PM, Ding <vocationalassessment@...> wrote:

?

Would be very keen to hear how your Pod filters are going - cant help with the throttle sensor though I am afraid.

Had a weird?issue with the ignition barrel though. Key turns, but does nothing and the steering lock is now on permanently!. Thinking of removing the whole shebang and hiding a kill switch.

What do you reckon?

Cheers for your time.?

Ding.

On Sun, 6 Nov 2022 at 13:26, ADHDOOM <adhdoom@...> wrote:

Hi peeps,

Got a couple of quick questions/requests that I'm hoping someone on here has the technical knowledge/effort to spare to answer for me:

Firstly does the throttle sensor adjust the timing when the bike is in use or is it just there to facilitate the function of the kickstand safety feature? I know that when the kickstand is still down and you drive to rev it kills the power so obviously the throttle sensor is involved in this feature but does it actually do anything else? If the kickstand safety feature was removed along with any associated elements could the throttle sensor then also be removed? I've played round with bikes that have CDI ignition systems like this before and none of the earlier bikes I've messed with have had or needed a throttle sensor so I am curious to know if the kickstand safety kill is all that it is there for.

Secondly would someone be able to post me a pic of the underside of the carbs? I had my float bowls off and was about to start putting them back on and have found a fifth slightly longer screw that I am not sure actually came off of the carb or is simply one that was left on my bench when I started.

Also I am in the process of fitting pod filters to the standard CV carbs and am trying a custom trick of making some short aluminum tube inserts to sit inside the pod filter that reduce ever so slightly to create a restriction and therefore maintain the constant velocity required to keep these carbs working as they should. If anyone's interested I'll post up pics of my custom inserts and of the results of how it runs etc... and before anyone says why am I putting pod filters on and to just leave the standard air box it's because I am going to start modifying the frame so there is no room for the standard airbox.

Thanks in advance!

Thanks for replying, there is of course no info on how to remove the ignition barrel in the manual. - Stopping thieves I guess. Looks like the screws are one use snap off underneath the barrel too - may look to see if I can grease the pin in situ??

On Mon, 7 Nov 2022 at 22:37, ADHDOOM <adhdoom@...> wrote:

Hi Ding,

Off the top of my head I think the key pushes out a pin to lock the steering so the key might be moving back and forward but the pin is stuck and therefore not returning. You might find once you remove the barrel assembly it just needs a little jiggle and some lube… though personally I’ve been considering removing the barrel and hiding a kill switch too.?

I’m not a fan of the overly large dash and want to cut back to just a single small Speedo which I think would look nice nested where the key currently resides. Just grind the loop off of the top tree and you’ve got a nice little half round recess.?

Had the aluminium tube arrive today and should hopefully be taking it to my friends workshop tomorrow to cut it to size. Will post pics once I’m done.?

On 7/11/2022, at 9:27 PM, Ding <vocationalassessment@...> wrote:

?

Would be very keen to hear how your Pod filters are going - cant help with the throttle sensor though I am afraid.

Had a weird?issue with the ignition barrel though. Key turns, but does nothing and the steering lock is now on permanently!. Thinking of removing the whole shebang and hiding a kill switch.

What do you reckon?

Cheers for your time.?

Ding.

On Sun, 6 Nov 2022 at 13:26, ADHDOOM <adhdoom@...> wrote:

Hi peeps,

Got a couple of quick questions/requests that I'm hoping someone on here has the technical knowledge/effort to spare to answer for me:

Firstly does the throttle sensor adjust the timing when the bike is in use or is it just there to facilitate the function of the kickstand safety feature? I know that when the kickstand is still down and you drive to rev it kills the power so obviously the throttle sensor is involved in this feature but does it actually do anything else? If the kickstand safety feature was removed along with any associated elements could the throttle sensor then also be removed? I've played round with bikes that have CDI ignition systems like this before and none of the earlier bikes I've messed with have had or needed a throttle sensor so I am curious to know if the kickstand safety kill is all that it is there for.

Secondly would someone be able to post me a pic of the underside of the carbs? I had my float bowls off and was about to start putting them back on and have found a fifth slightly longer screw that I am not sure actually came off of the carb or is simply one that was left on my bench when I started.

Also I am in the process of fitting pod filters to the standard CV carbs and am trying a custom trick of making some short aluminum tube inserts to sit inside the pod filter that reduce ever so slightly to create a restriction and therefore maintain the constant velocity required to keep these carbs working as they should. If anyone's interested I'll post up pics of my custom inserts and of the results of how it runs etc... and before anyone says why am I putting pod filters on and to just leave the standard air box it's because I am going to start modifying the frame so there is no room for the standard airbox.

Thanks in advance!