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Engine nosie after slide
- SWest
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- 10 22 2014
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04 May 2015 15:09 #670687
by SWest
Replied by SWest on topic Engine nosie after slide
Tell that to the guys that don't adjust their valves because it's too much work or it cost money. They should be on Mopeds. :whistle:
Steve
Oh, and the ones that refuse to buy a manual. :evil:
Steve
Oh, and the ones that refuse to buy a manual. :evil:
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- Sleepy202
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07 May 2015 10:46 - 07 May 2015 10:48 #670998
by Sleepy202
1980 KZ 550 ltd
Replied by Sleepy202 on topic Engine nosie after slide
Sorry for the late reply ladies and gents. Life has a habit of getting in the way. Thank you for the heads up on the service manual. I had been using it to change my tires. And I'll try timing my valves when the time comes......... Anyhow I have that video of the nosie. I believe it's coming from the lower part of the engin. Any ideas? I'll post the video in a second.
1980 KZ 550 ltd
Last edit: 07 May 2015 10:48 by Sleepy202.
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07 May 2015 11:23 #671005
by SWest
Replied by SWest on topic Engine nosie after slide
The engine is stumbling. Check you valve adjustments, then sync the carbs.
Steve
Steve
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07 May 2015 11:30 #671008
by Sleepy202
1980 KZ 550 ltd
Replied by Sleepy202 on topic Engine nosie after slide
I guess that time is now then ha!
1980 KZ 550 ltd
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07 May 2015 11:33 #671009
by missionkz
Bruce
1977 KZ1000A1
2016 Triumph T120 Bonneville
Far North East Metro Denver Colorado
Replied by missionkz on topic Engine nosie after slide
Just a quick thought:
To see if it is a cylinder or...? Pull one plug wire off at a time and increase idle speed a bit to keep it running.
If the noise really drops way off with one wire off.... you might have an exhaust leak or a crack somewhere.... etc
If no difference... you'll have to dig deeper.
To see if it is a cylinder or...? Pull one plug wire off at a time and increase idle speed a bit to keep it running.
If the noise really drops way off with one wire off.... you might have an exhaust leak or a crack somewhere.... etc
If no difference... you'll have to dig deeper.
Bruce
1977 KZ1000A1
2016 Triumph T120 Bonneville
Far North East Metro Denver Colorado
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- Tyrell Corp
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07 May 2015 11:34 #671010
by Tyrell Corp
1980 Gpz550 D1, 1981 GPz550 D1. 1982 GPz750R1. 1983 z1000R R2. all four aces
Replied by Tyrell Corp on topic Engine nosie after slide
Sounds like a cold 550 motor to me, they all sound like cement mixers filled with rocks if you try to idle them when stone cold.
Cold cast Ally pistons need to expand to fit the cast iron liners, the clutch basket will rattle as the rubber dampers inside have aged, maybe a bit of wear in your primary chain and camchain coupled with some valve clearances out...all the usual suspects.
As above, balancing the carbs and checking valve clearances will likely improve things.
Try that again when it is hot, put a rag over the exhaust and rev it up, it should whirr like an electric motor.
Cold cast Ally pistons need to expand to fit the cast iron liners, the clutch basket will rattle as the rubber dampers inside have aged, maybe a bit of wear in your primary chain and camchain coupled with some valve clearances out...all the usual suspects.
As above, balancing the carbs and checking valve clearances will likely improve things.
Try that again when it is hot, put a rag over the exhaust and rev it up, it should whirr like an electric motor.
1980 Gpz550 D1, 1981 GPz550 D1. 1982 GPz750R1. 1983 z1000R R2. all four aces
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07 May 2015 12:26 #671019
by Sleepy202
1980 KZ 550 ltd
Replied by Sleepy202 on topic Engine nosie after slide
Alright. I will adjust the valves and sync the carbs. If that doesn't fix it then i will start to pull plugs. Thanks for the suggestions guys. I will update with results.
1980 KZ 550 ltd
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07 May 2015 12:46 #671025
by bountyhunter
1979 KZ-750 Twin
Replied by bountyhunter on topic Engine nosie after slide
I think it MIGHT be the primary drive chain clacking which these sometimes do at idle. Check timing, advancer assembly, and valve clearance.
1979 KZ-750 Twin
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07 May 2015 13:51 #671031
by pete greek1
1980 LTD 1000..,1976 LTD 900, have the 1000&900 now. the rest are previous= 1978 KZ 650 B.., 1980 Yamaha XT 500..,1978 Yamaha DT 400.., 1977 Yamaha yz 80..,Honda trail ct 70.., Honda QA 50...5-1/2 hp brigs & straton CAT chopper mini bike...3-1/2 hp mini bike (WHEN GAS WAS ABOUT 45 CENTS A GALLON)!!!!
Replied by pete greek1 on topic Engine nosie after slide
When you went down, did your pipes get damaged ?
1980 LTD 1000..,1976 LTD 900, have the 1000&900 now. the rest are previous= 1978 KZ 650 B.., 1980 Yamaha XT 500..,1978 Yamaha DT 400.., 1977 Yamaha yz 80..,Honda trail ct 70.., Honda QA 50...5-1/2 hp brigs & straton CAT chopper mini bike...3-1/2 hp mini bike (WHEN GAS WAS ABOUT 45 CENTS A GALLON)!!!!
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