valve clearances check

  • squints
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valve clearances check

16 Apr 2007 11:44
#130765
I'm a newbie, but I am learning. Slosly. Please finish this sentence.

"You know you have to adjust your valve clearances when..."

I know they probably need adjusting anyway seeing as its a 25 year old bike, but I was wondering if there are any warning signs sounds to watch for.

Thanks all
traded my classic Kz's for a 2001 Kz1200r

Upstate NY

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  • mariozappa
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Re: valve clearances check

16 Apr 2007 12:27
#130779
The engine will die when you come to a stop and might not start until it cools down.
1977 KZ650C1
and the KZ650/KZ750 Conversion ;)

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  • N0NB
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Re: valve clearances check

16 Apr 2007 12:27
#130780
You warm it up and the compression gauge doesn't move off 0! :whistle:

Or, once warm it has almost no power.

Checking the tappet clearance is more a function of engine mileage rather than actual age. However, doing it is a good idea, if for no other reason than your peace of mind.
Nate

Nates vintage bike axiom: Riding is the reward for time spent wrenching.
Murphys corollary: Wrenching is the result of time spent riding.

1979 KZ650 (Complete!)
1979 KZ650 SR (Sold!)
1979 KL250 (For sale)
1994 Bayou 400 (four wheel peel :D )

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  • OKC_Kent
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Re: valve clearances check

16 Apr 2007 12:28
#130781
Low compression, poor performance
Cashion, OK
78 KZ650 B2 85,000+ miles

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  • H1Vindicator
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Re: ----

16 Apr 2007 13:10 - 20 Feb 2013 18:58
#130798
----
Last edit: 20 Feb 2013 18:58 by H1Vindicator.

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  • KaZooCruiser
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Re: valve clearances check

16 Apr 2007 13:17
#130803
squints wrote:
I'm a newbie, but I am learning. Slowly. Please finish this sentence.

"You know you have to adjust your valve clearances when..."

. . .the .003" feeler gauge won't fit into the gap. Or, when .008" is still loose.

Age is not the indicator. This is preventive maintenance to avoid burnt valves or other problems. If you have a clearance on the wrong side of minimal, you may lose a cylinder a long way from your tools and help. A hot valve can melt, dropping into an engine, ruining it, and your fun.

You don't wait until an oil light comes on to check your oil; you don't wait until engine problems manifest to check your valves.

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  • N0NB
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Re: valve clearances check

16 Apr 2007 13:31
#130806
Good advice, Kazoo, good advice.
Nate

Nates vintage bike axiom: Riding is the reward for time spent wrenching.
Murphys corollary: Wrenching is the result of time spent riding.

1979 KZ650 (Complete!)
1979 KZ650 SR (Sold!)
1979 KL250 (For sale)
1994 Bayou 400 (four wheel peel :D )

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  • Sandy
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Re: valve clearances check

16 Apr 2007 16:26
#130883
Popping out of the pipe during normal cruising.
In other words,it doesn't have to happen on deceleration,where these bikes are "pop"ular for that.Lower rpm cruising and popping would be an indication.
1977 KZ1000 A-1

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