valve clearances

  • blink543
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carb tune help/procedure

20 Jul 2015 16:32 - 20 Jul 2015 16:33
#681879
KZB2 650 wrote: Hope you are using the 17mm nut to turn it over and only going clockwise when turning it over........ I found the plunger on the tensioner was right at 15/16 to one inch out when my cam chain is tight (from the housing not the gasket)........ if its one inch and 5/16 or a hair more out you've pretty much reached its limit........ If your readings are thousands on the cam clearances your ok for a while.

Not sure which number is mm?
Adam james

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Last edit: 20 Jul 2015 16:33 by blink543.

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Re: valve clearances

20 Jul 2015 17:40 - 20 Jul 2015 17:41
#681887

Are these ok clearances for my 78 kz650?
I'm stumped.
Adam james

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Last edit: 20 Jul 2015 17:41 by blink543.
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  • JR
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Re: valve clearances

20 Jul 2015 18:09 - 20 Jul 2015 18:10
#681897
Not sure which number is mm?

.008 inch = .203mm
1980 kz750E1, Delkevic exhaust
Last edit: 20 Jul 2015 18:10 by JR.

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Re: valve clearances

20 Jul 2015 18:14
#681898
JR wrote: Not sure which number is mm?

.008 inch = .203mm

Ok ok. Well in my manual it says the valves need to be at 0.15mm
Adam james

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Re: valve clearances

20 Jul 2015 21:09
#681918
Based on the measurements above and on the info at the link, #3 intake and #1 exhaust are out of spec. The rest seem to be ok.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

www.kzrider.com/11-projects/620336-anoth...uild-thread?start=24

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Re: valve clearances

20 Jul 2015 22:27
#681927
TexasKZ wrote: Based on the measurements above and on the info at the link, #3 intake and #1 exhaust are out of spec. The rest seem to be ok.

Yeah I agree. I don't look forward to taking out the cams
Adam james

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Re: valve clearances

21 Jul 2015 07:29 - 21 Jul 2015 07:29
#681969
Once done you're good to go for 3-4000 miles. Did you get your cam timing issue worked out? When you said it had jumped, I thought bent valves. :ohmy:
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
Last edit: 21 Jul 2015 07:29 by SWest.

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Re: valve clearances

21 Jul 2015 08:17
#681977
swest wrote: Once done you're good to go for 3-4000 miles. Did you get your cam timing issue worked out? When you said it had jumped, I thought bent valves. :ohmy:
Steve

Well I checked the markings on the cam shafts with the timing Mark T on the timing adjuster the T is a little off from the cam shafts. The cam chain pin count of 36 seems to be correct I might just have to realign it all again. Wtf. When I saw it skipping, I tightened the cam adjuster and it stopped but I don't get how it came loose.
Adam james

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Re: valve clearances

21 Jul 2015 08:21
#681978
You'd better find the problem or all hell can break loose.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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Re: valve clearances

21 Jul 2015 08:23
#681980
swest wrote: You'd better find the problem or all hell can break loose.
Steve

Before I took it apart yesterday it ran fine no noises or anything. Just when I rotated it with the wrench it was skipping in the middle sprocket
Adam james

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Re: valve clearances

21 Jul 2015 08:27
#681982
You mean on the crank sprocket? Frightening.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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Re: valve clearances

21 Jul 2015 08:28
#681983
swest wrote: You mean on the crank sprocket? Frightening.
Steve

Noooo the middle guide sprocket the small one
Adam james

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