Leak Down Test questions

  • cnyl
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Re: Leak Down Test questions

01 Feb 2009 15:34
#261560
Lots of great info Thanks!;) I may try to make me one of those tools.
I just got finished doing a valve check so i'll need to get some shims. On the intake 1,4 couldn't get a .0015 under it and 2 and 3 I could get a .002 under. On the exhaust I couldn't get a .0015 under them. So she's tight! I know the manual says optimal clearance should be around .004. I think.:blush: What do you guys suggest?
1982 KZ1000 M2 CSR
North Port, FL

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  • gane
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Re: Leak Down Test questions

01 Feb 2009 15:45
#261562
Valve adjust, then comp. chk. Leakdown is great dio tool, but expensive. if valve adjust brings comp. back to snuff, ride on. if not, a leakdown will tell you where you'll be spending money.and how much. luck G
[img][/img] 1977 KZ1000A1

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  • cnyl
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Re: Leak Down Test questions

01 Feb 2009 15:55
#261565
Thanks.
I'll see if I can get a shim kit from Z1E. Great guys! Then i'll do a comp check. Still wondering about the ticking though..
I'll post numbers when i'm finished.;)
1982 KZ1000 M2 CSR
North Port, FL

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  • mark1122
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Re: Leak Down Test questions

01 Feb 2009 16:05
#261567
the tick could have been from the air leak at the exhaust??
76 KZ, frame gusset work,1200CC.Ported by Larry Cavanaugh, 1.5mm.over intakes, Carron Pipe, ZRX12 rear end, and seat,96zx9 front end.
01 CBR600F4i Track bike.
Cobourg, Ont. Can.

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  • cnyl
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Re: Leak Down Test questions

01 Feb 2009 16:13
#261570
Possibly but it did sound like it was higher. It would be nice if that's all it is. But this is me. lol
1982 KZ1000 M2 CSR
North Port, FL

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  • Patton
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Re: Leak Down Test questions

01 Feb 2009 16:18
#261572
cnyl wrote:
... looked into the exhaust ports they are all carboned up but the #1 also had wet oil around where the valve comes through. Seal?....

Might have little or no combustion going on in #1 cylinder, and running mostly on just the other three cylinders without realizing it. Perhaps due to the insufficient valve clearances.

Large KZ's can get alone pretty good on just three cylinders (and still outrun the Harleys). What appears to be oil might actually be a goop mixture of fuel, oil and carbon.

Would install brand new NGKB8ES spark plugs, and brand new copper exhaust gaskets (to likely stop the ticking as noted by mark1122).

Good Luck! :)
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KZ900 LTD

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  • cnyl
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Re: Leak Down Test questions

01 Feb 2009 16:28
#261575
Thanks! I can't wait!
I had a 66 Fairlane that I wanted to hotrod out but I enjoy tinkering on kz's more so I sold it. Motorcycles are much more easier to deal with such as room to store. I hope to have many some day.
Thanks
1982 KZ1000 M2 CSR
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  • mark1122
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Re: Leak Down Test questions

01 Feb 2009 16:38
#261577
Bring her into the living room and spread the parts all over. then u and the misses can enjoy it together.lol:woohoo:
76 KZ, frame gusset work,1200CC.Ported by Larry Cavanaugh, 1.5mm.over intakes, Carron Pipe, ZRX12 rear end, and seat,96zx9 front end.
01 CBR600F4i Track bike.
Cobourg, Ont. Can.

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~ (k) / (z)

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  • cnyl
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Re: Leak Down Test questions

01 Feb 2009 17:31
#261587
lol My wife loves helping. She likes to clean parts.lol
1982 KZ1000 M2 CSR
North Port, FL

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