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mz kickstart is poo

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mic
Brolly Dolly



Joined: 09 Sep 2010
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PostPosted: 11:11 - 22 Sep 2012    Post subject: mz kickstart is poo Reply with quote

Hi

When i try to kick it up it doesnt wanna go. Half the time it doesnt 'feel' like its trying to do anything. Ive changed the fuel tap i was having issues with so its all clean petrol etc. I had it running and gave it a little run up the street, gone back to it an hour later and it doesnt want to know. Sometimes the kickstart stops at the bottom of the kick and jams.

What part do i need to swear at??

thanks
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MarJay
But it's British!



Joined: 15 Sep 2003
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PostPosted: 11:17 - 22 Sep 2012    Post subject: Reply with quote

On my MZ, the kickstart works through the clutch, so if the clutch is pulled or slipping the bike won't start. That would be the first port of call.
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Zen Dog
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PostPosted: 01:05 - 23 Sep 2012    Post subject: Re: mz kickstart is poo Reply with quote

mic wrote:
What part do i need to swear at??


Well, the kickstart mechanism. I seem to remember when we put mine back together it was doing this, but its been a fair while and I cant remember exactly what it was. I think maybe the return spring had slipped from its correct position and moved around the shaft. Don't think it was a major job to sort, but then nothing really is on an MZ!

Marjay is right about the kickstart going through the clutch, so that may be contributing too.

Zen Dog
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Current - '94 VFR750FR, '00 VFR800FI Previous - '10 Street Triple R, '92 MZ ETZ301, '05 TTR250, NSR125R, KMX125, "Honda" Win (chinese copy of an old Honda design with a C90 engine)
My bike trip around S.E. Asia 2010/2011
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mic
Brolly Dolly



Joined: 09 Sep 2010
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PostPosted: 07:30 - 23 Sep 2012    Post subject: Reply with quote

I went back out, held the clutch lever in and it started pretty quick so not sure if it was coincidence or not. Will pop see if I can fire it up a few times today see if it doesn't make a difference

Cheers
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temeluchus
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PostPosted: 00:52 - 24 Sep 2012    Post subject: Reply with quote

Is it a two stroke or four stroke MZ?
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mic
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PostPosted: 05:02 - 24 Sep 2012    Post subject: Reply with quote

2 stroke
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temeluchus
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PostPosted: 07:15 - 24 Sep 2012    Post subject: Reply with quote

try 2 kicks with the ignition off and choke off, then choke on and one kick. That usually got my MZs going first time.
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stinkwheel
Bovine Proctologist



Joined: 12 Jul 2004
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PostPosted: 09:05 - 24 Sep 2012    Post subject: Reply with quote

There is a definate knack to them.

Most people try to kick them too hard, just tickle it over, you're not trying to make the piston fly out of the top of the engine.
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MarJay
But it's British!



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PostPosted: 09:30 - 24 Sep 2012    Post subject: Reply with quote

stinkwheel wrote:
There is a definate knack to them.

Most people try to kick them too hard, just tickle it over, you're not trying to make the piston fly out of the top of the engine.


On my 301 if you didn't give it any welly it would kick back and take out your shins. It wasn't a "Kicking over an old brit twin" kick, but it definitely needed a firm and decisive swing.
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stinkwheel
Bovine Proctologist



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PostPosted: 09:39 - 24 Sep 2012    Post subject: Reply with quote

MarJay wrote:

On my 301 if you didn't give it any welly it would kick back and take out your shins. It wasn't a "Kicking over an old brit twin" kick, but it definitely needed a firm and decisive swing.


Yes, but we're talking about a 125 here.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.
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Zen Dog
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PostPosted: 11:20 - 24 Sep 2012    Post subject: Reply with quote

stinkwheel wrote:
MarJay wrote:

On my 301 if you didn't give it any welly it would kick back and take out your shins. It wasn't a "Kicking over an old brit twin" kick, but it definitely needed a firm and decisive swing.


Yes, but we're talking about a 125 here.


And a compression level designed to allow running on paraffin/lighter fluid/gravy...

Still wince thinking about the bruise on my calf muscle from the foot-slip-kickback on my 301 though.

Zen Dog
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Current - '94 VFR750FR, '00 VFR800FI Previous - '10 Street Triple R, '92 MZ ETZ301, '05 TTR250, NSR125R, KMX125, "Honda" Win (chinese copy of an old Honda design with a C90 engine)
My bike trip around S.E. Asia 2010/2011
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mic
Brolly Dolly



Joined: 09 Sep 2010
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PostPosted: 09:01 - 30 Sep 2012    Post subject: Reply with quote

Wouldnt start yesterday after work so did a crappy video on the iphone. Excuse the havey breathing, had been trying for a while....

When it did start up i went out for a couple of hours to give it a run, but this morning it didnt wanna know so i ended up in the car.

When kicking, its usually the end part of it that fires the bike up when it feels like it but it doesnt feel like theres anything there. If i take the side panel off will i see what should be there? Im guessing a spring?

https://youtu.be/X8V_WUq1cas
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temeluchus
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PostPosted: 12:05 - 30 Sep 2012    Post subject: Reply with quote

Zen Dog wrote:

Still wince thinking about the bruise on my calf muscle from the foot-slip-kickback on my 301 though.


I made the mistake of kicking over my 301 in trainers once. Limped for a week.
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Boxing
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Joined: 13 Mar 2012
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PostPosted: 12:15 - 30 Sep 2012    Post subject: Reply with quote

mic wrote:
Wouldnt start yesterday after work so did a crappy video on the iphone. Excuse the havey breathing, had been trying for a while....

When it did start up i went out for a couple of hours to give it a run, but this morning it didnt wanna know so i ended up in the car.

When kicking, its usually the end part of it that fires the bike up when it feels like it but it doesnt feel like theres anything there. If i take the side panel off will i see what should be there? Im guessing a spring?

https://youtu.be/X8V_WUq1cas


One of my off road bikes used to do that. Turned out the kick start shaft was gone in the end. The clutch shaft went not too long later, from bump starting it, I presume.
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Zen Dog
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PostPosted: 14:35 - 30 Sep 2012    Post subject: Reply with quote

mic wrote:
Wouldnt start yesterday after work so did a crappy video on the iphone. Excuse the havey breathing, had been trying for a while....

When it did start up i went out for a couple of hours to give it a run, but this morning it didnt wanna know so i ended up in the car.

When kicking, its usually the end part of it that fires the bike up when it feels like it but it doesnt feel like theres anything there. If i take the side panel off will i see what should be there? Im guessing a spring?

https://youtu.be/X8V_WUq1cas


The design is different from the 301, so I can't help directly. It sounds like there are "teeth" inside trying to grip, but they're worn so just slipping past. I'd get a Haynes manual and examine the kickstart mechanism, and then contact Burwins about parts (which will probably be absurdly cheap).

Zen Dog
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Current - '94 VFR750FR, '00 VFR800FI Previous - '10 Street Triple R, '92 MZ ETZ301, '05 TTR250, NSR125R, KMX125, "Honda" Win (chinese copy of an old Honda design with a C90 engine)
My bike trip around S.E. Asia 2010/2011
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