Timing Advancer - 1982 KZ440

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Timing Advancer - 1982 KZ440

10 Mar 2023 15:34
#881357
I have a 1982 KZ440 LTD-belt with a broken spring on the timing advancer.  I am trying to locate a new timing advancer but that is proving to be difficult.  Anyone have any luck finding/replacing just the springs?

Thanks!
John

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Re: Timing Advancer - 1982 KZ440

10 Mar 2023 16:15
#881359
The springs off any KZ will work.


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2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected

www.dotheton.com/forum/index.php?topic=39120.0


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  • SWest
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Re: Timing Advancer - 1982 KZ440

10 Mar 2023 17:04
#881360
Pic of the advancer. There were two kinds of springs. One is a little longer than the other. I might have some you can have.
Steve

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Re: Timing Advancer - 1982 KZ440

10 Mar 2023 17:48
#881365
Z Power in the UK does a set that fits many KZs. They're good springs.

www.z-power.co.uk/
KZ440A LTD (1980)

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Re: Timing Advancer - 1982 KZ440

11 Mar 2023 12:29 - 11 Mar 2023 13:39
#881384
Here is a photo of the advancer.  I am assuming I would replace the one still on the advancer as well.
If you have a few extra springs, that would be great!
Thanks,
John

 
Last edit: 11 Mar 2023 13:39 by SWest.

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Re: Timing Advancer - 1982 KZ440

11 Mar 2023 13:44
#881387
The spring looks under tension. It may not be for the bike. I'll see what I have and post pics. 
Steve

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Re: Timing Advancer - 1982 KZ440

12 Mar 2023 09:09
#881406
I removed the spring, here is a photo.

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Re: Timing Advancer - 1982 KZ440

12 Mar 2023 10:19
#881409
It's stretched out. It looks as if it might have been opened up at either end to fit. Either way, you need new springs.
KZ440A LTD (1980)

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  • SWest
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Re: Timing Advancer - 1982 KZ440

15 Mar 2023 08:35
#881547
I must have sent the spare springs and parts to one of our members. This is all I have left.   I bought a cheap spark advance from a KZ 750 on eBay and used the springs off it. 
This one's $15 free shipping. 
 
$35
  
What's left of mine. 
 
It's featured in my next video along as one I rebuilt for my Z1. .
Steve

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Re: Timing Advancer - 1982 KZ440

15 Mar 2023 15:47
#881588
Thanks for looking!
I will look for another advancer and remove the springs.
And the springs from any KZ will work, correct?  

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Re: Timing Advancer - 1982 KZ440

15 Mar 2023 15:58
#881590
From what I could see One pair are a little thicker than the other and the arms are heavier. The item I posted sold. 
Steve

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Re: Timing Advancer - 1982 KZ440

15 Mar 2023 17:10
#881594
Ideally you want to look at the advance curve in the manual and try and find something with a similar curve. The advance curve in these kind of early mechanical systems is controlled the wheight of the advancers and the spring rate. Back in the day tuners changed the wheights and springs to change the advance curve in hot motors (days before mappable ignition)

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