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kickstart fails to come back to top

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kickstart fails to come back to top

Posted by john_day at January 21. 2018

the kickstart only comes back about half way and then runs out of steam, spring seems weak, and I have to pull it back up the rest of the way

1959 es2 with a laydown gearbox. is it an easy fix or shall I just regard it as a quirk

Re: kickstart fails to come back to top

Posted by richard_payne at January 21. 2018

Don't regard it as a quirk. If it's not fully returned then the kickstart pawl will not be retained behind the stop and will be ratcheting inside layshaft first the whole time.

Is it a new symptom ? If the system is the same as the upright box then the spring tension can be adjusted. Make sure that nothing is bent or binding though. Does it move smoothly and easily enough with the clutch pulled in ?

Re: kickstart fails to come back to top

Posted by Ian MacDougall at January 21. 2018

The kickstart spring on the laydown box is external, located inside the cylindrical cover just behind the kickstart lever. It can be changed/adjusted without dismantling the box. That doesn't necessarily make it an easy job! Remove the kickstart lever, then pry off the spring cover (it is a push fit). The outer end of the spring locates in a hole in the kickstart shaft, the inner end locates in one of the slots in the kickstart bush. Check for a broken spring, change if necessary. If the spring is intact but weak it should be possible to relocate the inner end to another slot and so increase the preload. E M Franks suggests 2nd or 3rd slot beyond the normal free position of the spring. As Richard says it is important that the lever fully returns. If you can't fix immediately at least use a bungee as a temporary measure to hold the lever up.

Cheers, Ian McD

Re: kickstart fails to come back to top

Posted by paul_standeven at January 21. 2018

Ian McD's comments are spot on.

I would add that the k/s spring cover is liable to be rusted into place, so add penetrating oil and use judicious force

Paul

Re: kickstart fails to come back to top

Posted by john_day at January 22. 2018

Many thanks for your suggestions, it is brilliant to be back in the realms of british mechanics where the words  pry, bent, weak, and judicious force, are used in everyday speech.

Will let you know how it goes!

Re: kickstart fails to come back to top

Posted by terence_terrell at January 22. 2018

Previously john_day wrote:

Many thanks for your suggestions, it is brilliant to be back in the realms of british mechanics where the words  pry, bent, weak, and judicious force, are used in everyday speech.

Will let you know how it goes!

Yes and for a Velocette you can add heating-up the crankcase with a blowtorch to withdraw the oil pump. Crazy!.

Re: kickstart fails to come back to top

Posted by brian_west at February 01. 2018

While the subject thread is 'alive' can I ask if there is a method of tensioning the laydown kickstart spring to the 2nd or 3rd notch?

 I understand the principle but as to actually achieving it......my attempts were unsuccessful, and I can see blood blisters on the horizon! just wondered what the 'tried & tested' method (s) would be please.

Thanks Brian

Re: kickstart fails to come back to top

Posted by john_day at February 02. 2018

this does seem to be a problem with es2 and 50s, my mates 350 shows the same symptoms......think I'm going to watch him do his first. all help appreciated.

cheers

John

Re: kickstart fails to come back to top

Posted by ian_soady at February 02. 2018

The only way I've used is by levering round with a flat bladed screwdriver then carefully pushing into position but as you say fraught. It's also very easy to distort the spring by taking it too far.

Re: kickstart fails to come back to top

Posted by Ian MacDougall at February 02. 2018

I did say it might not be easy! It is a while since I did this job and I don't have a clear recollection of the process, although Ian Soady's flat bladed screwdriver method sounds right. 3rd slot beyond the free position might not be achievable.

Ian McD

Re: kickstart fails to come back to top

Posted by john_day at February 08. 2018

o.k. before I start what is the best method of adding more tension to this spring...... I presume it should go around to the2 o'clock position. don't want to start with bits of string if there is an easier way

all help gratefully received

 

 

Attachments

Re: kickstart fails to come back to top

Posted by john_day at February 08. 2018

done it......a bit of lateral thinking and a small chain [plug chain!]

put peg into shaft, fasten chain around t'other end, wrap chain around hand, pull until it engages ,cut off

link with end snips

job done !!

Attachments

Re: kickstart fails to come back to top

Posted by richard_payne at February 08. 2018

You must be feeling flushed with success now ! :)

Re: kickstart fails to come back to top

Posted by ian_soady at February 09. 2018

Or drained with the effort!

Re: kickstart fails to come back to top

Posted by tom_dolby at February 09. 2018

Could you give us the link?

Re: kickstart fails to come back to top

Posted by David Cooper at February 09. 2018

Glad you've done it, John.

When faced with a stubborn spring I usually try to fix up a 'Spanish Windlass' using strong cord (like braided nylon) - and make sure I'm wearing proper eye protection!  Then do as you did and cut it away afterwards.

 

(incidentally - the Wikipedia (Wiktionary) dictionary description of a Spanish Windlass is totally wrong!  Very strange.)

Re: kickstart fails to come back to top

Posted by George Phillips at February 09. 2018

I see that the pic was taken whilst you still had your fingers, John! Well done.

George

Re: kickstart fails to come back to top

Posted by George Phillips at February 09. 2018

I've has a basin-full of all these puns!

Re: kickstart fails to come back to top

Posted by tom_dolby at February 09. 2018

You mean you have that sinking feeling!

Re: kickstart fails to come back to top

Posted by George Phillips at February 09. 2018

Now you're really plumbing the depths, Tom!

Re: kickstart fails to come back to top

Posted by tom_dolby at February 09. 2018

Sorry, I'll pipe down now ...

Re: kickstart fails to come back to top

Posted by richard_payne at February 09. 2018

I've tried to syphon off the useful information in the later comments but can only conclude that most of us are talking ball-cocks. Tongue out

Re: kickstart fails to come back to top

Posted by George Phillips at February 09. 2018

Think I'll give this thread the elbow.

Re: kickstart fails to come back to top

Posted by George Phillips at February 09. 2018

Before I fall into the trap.

Re: kickstart fails to come back to top

Posted by richard_payne at February 09. 2018

George, you're driving me round the bend ! You keep harp(ic)ing on !

Re: kickstart fails to come back to top

Posted by George Phillips at February 09. 2018

That one had me laughing like a drain!

Re: kickstart fails to come back to top

Posted by richard_payne at February 10. 2018

...and you've bowled me over again :)

Re: kickstart fails to come back to top

Posted by George Phillips at February 10. 2018

OK guys. That's enough. This has gone off topic even in an Off Topic post! Congrats to John for solving his prob and for sharing with us how he did it. My apols for dragging it out. Put it down to feeling a bit "cruk" and looking for any distraction. George

Re: kickstart fails to come back to top

Posted by tom_dolby at February 10. 2018

Definitely off thread - it should be BSP.

Re: kickstart fails to come back to top

Posted by George Phillips at February 10. 2018

Oops. Sorry guys. Just twigged this is under "Singles" not "Off Topic". That's what comes of following more than one thread at once! I'm going back to bed. George

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