Primary Chain?

davehayward1
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Primary Chain?

30 Jun 2011 20:49

Starter clutch issues on my '81 KZ 750 LTD
Replaced springs and rollers and it worked fine for a while.
Pulled the starter clutch again and replaced three stripped bolts but it's still
rattling when I hit the start button
I have a replacement starter clutch and am going to replace the whole thing this time
What about the primary chain?
It looks fine - a little loose maybe. How do I know if it should be replaced?

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SPARKY47
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1980 KZ500 B2
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Re: Primary Chain?

30 Jun 2011 23:13 - 30 Jun 2011 23:14

#460380

I suspect your 750 will be similar to my 500 in that my manual says no more than 1" of up and down play in the middle of the primary chain.Problem is it being wrapped around the crank...engine out,cases split jobbee.Best of luck.

1980 KZ500 B2
Location: Middle England[/b

Last edit: 30 Jun 2011 23:14 by SPARKY47.

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TeK9iNe
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What did you do!?!
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Re: Primary Chain?

01 Jul 2011 00:02

#460392

Replace the primary chain when you commit to a complete tear down and you wont feel so bad about the job :laugh:

Its not difficult, just time consuming.

Motorcycle Shop Owner/Operator

79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors

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bountyhunter
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Re: Primary Chain?

01 Jul 2011 03:53 - 01 Jul 2011 03:54

#460419

davehayward1 wrote: Starter clutch issues on my '81 KZ 750 LTD
Replaced springs and rollers and it worked fine for a while.
Pulled the starter clutch again and replaced three stripped bolts but it's still
rattling when I hit the start button
I have a replacement starter clutch and am going to replace the whole thing this time
What about the primary chain?
It looks fine - a little loose maybe. How do I know if it should be replaced?

Dumb question: do you mean the chain connecting the starter gear to the flywheel drive hub?

1979 KZ-750 Twin

Last edit: 01 Jul 2011 03:54 by bountyhunter.

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davehayward1
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Re: Primary Chain?

04 Jul 2011 20:59

#461046

Thanks to all for the help
I replaced the starter clutch and it's running beautifully

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steell
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Re: Primary Chain?

05 Jul 2011 02:22

#461097

bountyhunter wrote:

davehayward1 wrote: Starter clutch issues on my '81 KZ 750 LTD
Replaced springs and rollers and it worked fine for a while.
Pulled the starter clutch again and replaced three stripped bolts but it's still
rattling when I hit the start button
I have a replacement starter clutch and am going to replace the whole thing this time
What about the primary chain?
It looks fine - a little loose maybe. How do I know if it should be replaced?

Dumb question: do you mean the chain connecting the starter gear to the flywheel drive hub?

750 four, the chain connecting the crankshaft to the secondary shaft, which then spins the clutch.

KD9JUR

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bountyhunter
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Re: Primary Chain?

05 Jul 2011 02:46 - 05 Jul 2011 02:49

#461099

OK, I thought the 81 750 LTD was a twin. It's a four.

1979 KZ-750 Twin

Last edit: 05 Jul 2011 02:49 by bountyhunter.

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