The BSA A7-A10 Forum

Technical => Clutch, Primary, Gearbox => Topic started by: BrianS on 24.12. 2016 11:08

Title: Folding kickstart woes
Post by: BrianS on 24.12. 2016 11:08
I treated the A10 to a folding kickstart from Steve at Feked but can't get it to fit!

I have tried three new 3/8ths cotter pins (the last one was from Steve hisself so as to make sure it was 100%) and they all just slide right through and don't catch on the kickstart shaft cutout.

The cotter pins are all a tight fit with the original kickstart to the extent that very little thread comes through so I am thinking it's not a problem with the shaft. Does that sound right?

I don't want to make a fool of myself (again!)  but am thinking that the cotter pin hole in the new folding kickstart might have been drilled a little too far away from where it contacts the shaft.

Any feedback appreciated.

Brian
Title: Re: Folding kickstart woes
Post by: a101960 on 24.12. 2016 13:47
Quote
but am thinking that the cotter pin hole in the new folding kickstart might have been drilled a little too far away from where it contacts the shaft.
I think that you are right in your assumption. The cotter pin should be a tight fit in the kick start hole. I think that you should return the kick start and source one from some where else.
Title: Re: Folding kickstart woes
Post by: dave55 on 24.12. 2016 16:12
Is it a tapered cotter pin with a flat on it ?......You are lining the flat up with the flat on the shaft ?
Title: Re: Folding kickstart woes
Post by: BrianS on 24.12. 2016 16:21
Is it a tapered cotter pin with a flat on it ?......You are lining the flat up with the flat on the shaft ?

Hi Dave

It is this one https://www.feked.com/kickstart-cotter-pin-triumph-and-bsa.html (https://www.feked.com/kickstart-cotter-pin-triumph-and-bsa.html)

The main body of the pin isn't tapered - 9.45mm along its length.

When I line up the pin with the flat on the shaft it pops in one end and right out the other  *sad2*

Brian
Title: Re: Folding kickstart woes
Post by: dave55 on 24.12. 2016 17:06
So it has been drilled right through as if for a bolt ? Surely if it was for a cotter pin it would have a big hole one side and small clearance hole on other for the threaded bit ?
Title: Re: Folding kickstart woes
Post by: BrianS on 24.12. 2016 18:52
So it has been drilled right through as if for a bolt ? Surely if it was for a cotter pin it would have a big hole one side and small clearance hole on other for the threaded bit ?

Both the original and the folding kickstart have holes drilled all the way through as if for a bolt.
Title: Re: Folding kickstart woes
Post by: dave55 on 24.12. 2016 19:01
So what did the original one have in it ?  *conf*
Title: Re: Folding kickstart woes
Post by: Greybeard on 24.12. 2016 19:29
So it has been drilled right through as if for a bolt ? Surely if it was for a cotter pin it would have a big hole one side and small clearance hole on other for the threaded bit ?
No, the hole is parallel, the cotter pin is also parallel. It is tapered to engage with the flat on the shaft. See picture 1

What do you see when you look through the hole? Can you see the flat on the shaft coming into the hole? As in picture 2
Title: Re: Folding kickstart woes
Post by: Derby Rob on 24.12. 2016 19:35
i think i had a problem like this when i restored my swing arm a7, i think the actual shaft was worn .If my memory is correct i wrapped a small piece of shim (a bit of coke can ) around the shaft so the the kick start was a tap on fit with a rubber mallet ,then the pin fitted ok
Title: Re: Folding kickstart woes
Post by: Tomcat on 25.12. 2016 07:52
[quote} but am thinking that the cotter pin hole in the new folding kickstart might have been drilled a little too far away from where it contacts the shaft



Yes you are correct Brian, I had exactly the same problem on a part from DF.  Sent it back and bought the correct part from Beezermac. Looks like a bad batch of kickstart levers are doing the rounds.
cheers TC
Title: Re: Folding kickstart woes
Post by: BrianS on 27.12. 2016 09:39
[quote} but am thinking that the cotter pin hole in the new folding kickstart might have been drilled a little too far away from where it contacts the shaft

Yes you are correct Brian, I had exactly the same problem on a part from DF.  Sent it back and bought the correct part from Beezermac. Looks like a bad batch of kickstart levers are doing the rounds.
cheers TC

That is interesting TC - and a tad re-assuring in that it may not be me doing summat wrong!!!!   Anyone else experienced a similar issue please? Just working out how best to convince the supplier of said folding kickstart that he is selling faulty goods. I would have thought that the fact the old kickstart fits fine should be enough?
Brian
Title: Re: Folding kickstart woes
Post by: trevinoz on 27.12. 2016 20:21
Yeah, I had the same on a bike I was fixing for a friend. Couldn't see the problem until I tried another lever.
Title: Re: Folding kickstart woes
Post by: muskrat on 28.12. 2016 06:26
Yep, me two. Mine was bought 6 years ago. Mine might not be quite as bad in that it wont go right through but doesn't have much adjustment. I bodged mine by gluing a piece of tin to the flat of the shaft.
Cheers
Title: Re: Folding kickstart woes
Post by: KeithJ on 01.01. 2017 13:14
I have also had issues.  I found the cotter pins vary and that was my problem.  One company supplies the pin with a metric thread and imperial hex nut!  They said it was to make the threaded part stronger which I guess it does.  Also the threaded part of the cotter pin is offset to the body of the pin.  I ended getting my cotter pin from George Prew and it worked for me.  Good luck and hope 2017 is a good year. 
Title: Re: Folding kickstart woes
Post by: chaterlea25 on 01.01. 2017 20:05
Hi All,
Way way back when *ex* cotter pins were available in at least three different types, shallow, normal and deep mill, to take in the variations in shafts and cranks
The thread on old british cotters was 17/64 x 26  *eek*
Dont ask me how I remember all this  *????* *????*

John
Title: Re: Folding kickstart woes
Post by: BrianS on 03.01. 2017 15:50
I have also had issues.  I found the cotter pins vary and that was my problem.  One company supplies the pin with a metric thread and imperial hex nut!  They said it was to make the threaded part stronger which I guess it does.  Also the threaded part of the cotter pin is offset to the body of the pin.  I ended getting my cotter pin from George Prew and it worked for me.  Good luck and hope 2017 is a good year.

I have three new cotter pins all sold as 3/8" and each one is different in terms of the cut out, threads and nuts and, yes, one has the threaded portion offset.

However, they all work on my non-folding kickstart but all fall through with the new folding one.

I heard back from Steve at Feked this morning and he has asked me to send back the kickstart for checking. I will let you know what transpires!

Brian
Title: Re: Folding kickstart woes
Post by: BrianS on 11.01. 2017 21:16
Just had a refund from Feked so I am assuming Steve agrees the kickstart was faulty.

I am looking at another one on eBay here http://www.ebay.co.uk/itm/371374881587 (http://www.ebay.co.uk/itm/371374881587)

Anyone tried one of these on their A10 please?

Brian
Title: Re: Folding kickstart woes
Post by: Tomcat on 12.01. 2017 03:56


I purchased the correct folding kickstarter from Priory Magnetos. Why not get Andrew to put one in with the dynamo? Unlike half of the suppliers Andrew knows what these parts are for. DISCLAIMER I have no connection other than a satisfied customer.
Cheers TC
Title: Re: Folding kickstart woes
Post by: BrianS on 12.01. 2017 07:59
Good thinking - I will do that!

Brian
Title: Re: Folding kickstart woes
Post by: Dean on 26.01. 2017 20:51
If anyone else would like a brand new folding kickstart with an oversized cotter pin hole I have a spare bought from an autojumble some years ago *sad2*