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Identify my new engine rattle - 1981 KZ750 LTD
- Irish Yobbo
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Any ideas? It wasn't revving high or under load when it started, I was just rolling down the hill at about 40kph.
1981 KZ750 LTD
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- Nessism
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Just guessing but I'd say starter clutch issue or the rotor may have come loose.
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- Irish Yobbo
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1981 KZ750 LTD
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- SWest
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- 10 22 2014
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Steve
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- Irish Yobbo
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I'm in Australia, if you're confused about the time
1981 KZ750 LTD
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- SWest
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Steve
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- Irish Yobbo
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1981 KZ750 LTD
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- SWest
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Steve
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- Tyrell Corp
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Camchain rattle has a distinctive 'bunch of keys' tinkle to it and most pronounced at about 3k when the throttle is blipped. Not the sound I'm hearing.
Alternator rotor come loose / fastener(s) gone awol /or magnets delaminated? Use impact driver and threadlock here.
Try putting a rag over the exhaust temporarily and you can hear the motor a lot more clearly.
Any smoking / loss of power or charging issues?
1980 Gpz550 D1, 1981 GPz550 D1. 1982 GPz750R1. 1983 z1000R R2. all four aces
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- Irish Yobbo
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I didn't notice any smoking or loss of power, but I was literally 50 metres down the road when it happened (which is why it's cold), so I haven't ridden it enough to notice. I just rode it back and parked it.
I've read a few threads on rotors mentioning to use an impact driver and threadlock. Normally that sounds like a big no-no to me - is this because there is no easy way to lock the crank for tightening? Any chance I'll be stripping bolts if I do this?
1981 KZ750 LTD
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- SWest
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Steve
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- Irish Yobbo
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SWest wrote: I have it in gear and use the rear brake when I'm tightening large bolts or nuts.
Steve
I did the same for the crank nut when changing sprockets without issue - can't see any reason why I couldn't do this unless there is a component that can't handle it? I would have thought dropping the clutch would apply more torque than I could.
1981 KZ750 LTD
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