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Z500 Engine Rattle...
- razmo99
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I was wondering If anyone would share their opinion on what could be causing for lack of a better word a rattle from my engine.
The "rattle" goes away when the bike warms up.
It has done this since I first acquired the bike.
The carbs are mostly synced, and the bike needs the valves to be adjusted.(I am in the process of doing this)
The "Rattle" seems to emanate from the transmission.
This sound is really loud and I am wondering if their are parts wearing in the engine at an excessive rate.
I would appreciate any opinions or insights and what might be causing this sound.
Lewis
- Z500 B4
-GPZ900R A9-10 ish
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- razmo99
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- Z500 B4
-GPZ900R A9-10 ish
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- TexasKZ
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More expensive problems can, too. Do all the routine maintenance first, then if the noise persists, look for other causes.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
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- Tyrell Corp
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- "You were made as well as we could make you"
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Carb balance and increasing idle speed a touch will reduce this.
The 500 / 550 cranks are bulletproof -unless they run out of oil. The same crank went onto the 600 Ninja water cooled.
1980 Gpz550 D1, 1981 GPz550 D1. 1982 GPz750R1. 1983 z1000R R2. all four aces
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- SWest
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- 10 22 2014
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Steve
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- razmo99
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- Z500 B4
-GPZ900R A9-10 ish
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- davido
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www.kzrider.com/forum/11-projects/594313-csr1000-project-build
CB550 (1978)
CB500/4 (1972)*
KZ1000CSR (1981)
XT 600E (1999)
TDM900 (2003)
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- 650ed
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1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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- jackleberry
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1997 KZ1000P (P16)
2001 KZ1000P (P20)
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- loudhvx
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650ed wrote: What rpm is your idle set at? It should be 1,000 - 1,050 rpm. Ed
I think the 500/550 are to be set a little higher, like 1150 at the top. I suppose I could check the manual, but I'm on a very slow computer right now.
EDIT: Well, the spec page does show 1050, but the sync page says 1000 to 1100. (It was the KZ400J, that I must have had in mind, that one is up to 1250.)
1981 KZ550 D1 gpz.
Kz550 valve train warning.
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- loudhvx
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jackleberry wrote: When you adjusted the valves, what clearance did you adjust them to? I'm not familiar with this motor, but on an the KZ1000 If you set them all on the wide end, then the cam shafts can rock side to side and make a similar noise. Setting the valves to closer to the middle/low end of the range and/or replacing the cam journal bearings can fix it.
Yes, on the 550 it's very noticeable. I was recently doing some trouble shooting on one 550 and temporarily set them at the max range and they were very noisy. Then I adjusted them to the middle of the range, and they were nice and quiet.
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
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- razmo99
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As for the idle I think you are right it is a bit low. I haven't been riding the bike because I have been waiting for some front brake components.
- Z500 B4
-GPZ900R A9-10 ish
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