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| Itchy |
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 Itchy Super Spammer

Joined: 07 Apr 2005 Karma :     
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 Posted: 14:04 - 03 Dec 2008 Post subject: Retro fitting a kickstart? |
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In that I was watching a film the other night where you had a bloke spinning a handle on the side of an airplane at which one bloke shouted contact, and the engine turned over....
A starter motor is just an electrical motor which does this electrically right?....
I was thinking on some old school hondas you can turn the engine over for valve clearance purposes using a socket on a removable bit on the side of the engine....
I thought hmm , so couldn't you just put some sort of undo this cap and use it as a crank exactly like those WWI airplanes? , or if the crank bolt not designed for such rigours and would snap , cracking and sending bits of metal into the engine case?...
I'm not a fan of electric start , as your leg will last a lot longer than cranking with a battery.... and for some reason my bump starting ability has gone arwy.
Any thoughts?
Ta ____________________ Spain 2008France 2007Big one 2009 We all die. The goal isn't to live forever, the goal is to create something that will. In the end, your life will flash before your eyes. Make sure it is worth watching. |
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| MarJay |
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 MarJay But it's British!

Joined: 15 Sep 2003 Karma :     
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| SoND |
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 SoND World Chat Champion

Joined: 10 Jul 2005 Karma :  
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 Posted: 14:19 - 03 Dec 2008 Post subject: |
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I'm thinking you would need some sort of ratchet so when it starts it doesn't spin the handle and rip your arms off. ____________________ Go back to bed - You have no rights - "Streetfighters ~ Mainstream motorcycling's crackwhore sister." |
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| G |
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 G The Voice of Reason
Joined: 02 Feb 2002 Karma :     
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 Posted: 14:33 - 03 Dec 2008 Post subject: Re: Retro fitting a kickstart? |
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As above; I'd expect the kick start generally turns it a fair bit more than you would turn it with something on the end of a crank; so you'd have to gear it up, somehow.
Just bumpstart it if you've got a dead battery; tends to be more effective than a kickstart anyway . |
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| Kickstart |
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 Kickstart The Oracle

Joined: 04 Feb 2002 Karma :     
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 Posted: 14:33 - 03 Dec 2008 Post subject: |
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Hi
Find an old car with a hand cranking handle. Try and start that. You might change your mind!
The cranking handles just ended in a pair of flats in line with the shaft, with a ramp on the other side. So as you turn it the flats are pushing against the "crank", but when the engine starts it can only push against the ramp, hence just pushes the handle away.
No real reason it couldn't be done. Be best to modify the outer cover over the end of the crank to allow through an extension on the end of the crank. And then just machine that extension to match the cranking handle.
Proper kickstart would be harder, but probably a hell of a lot easier to use. Last 4 cylinder bikes I can remember with kick starts were the GS550s, but no doubt there are other more recent ones.
All the best
Keith ____________________ Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing |
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| MarJay |
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 MarJay But it's British!

Joined: 15 Sep 2003 Karma :     
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| Smooth |
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 Smooth Could Be A Chat Bot

Joined: 21 Apr 2008 Karma :  
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| Finglonga |
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 Finglonga World Chat Champion

Joined: 27 Jul 2004 Karma :    
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Old Thread Alert!
The last post was made 17 years, 332 days ago. Instead of replying here, would creating a new thread be more useful? |
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