piston ring replacement ......help

  • djcamp10
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piston ring replacement ......help

15 Dec 2009 17:03
#339169
So i have come to the conclusion that i got a ring out, but before i dive in both feet thought i should ask (keep in mind I've replaced the head gasket before so i am familiar with the process of removing that) how challenging is the bottom half gonna be to replace the bad ring? will it require any special tools.
1977 Kz650 B1

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  • rstnick
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Re: piston ring replacement ......help

15 Dec 2009 17:37
#339181
Finding rings will be the hardest part.
If you come along the mother load, let me know.
Rob
CANADA

Need a key for your Kawasaki? PM me

1978 KZ650 C2, 130K kms, Delkevic ex, EI, CVK32, PMC easy clutch, ATK fork brace, steering damper, braced swingarm, ZRX shocks, 18" Z1R front wheel.
2000 ZRX1100
2011 Ninja 250R - Wife's
2005 z750s (aka GPz750)
1978 KZ1000 project

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  • djcamp10
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Re: piston ring replacement ......help

15 Dec 2009 17:47
#339183
ebay set for 1 cyl 49.99. any advice after i got the top end off?
1977 Kz650 B1

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  • sbc1320
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Re: piston ring replacement ......help

15 Dec 2009 18:57
#339198
What kind of bike?
1980 KZ1000 LTD-B4(MK II engine) - Progressive suspension, MTC pistons, Dynojet Stage III, all wear items replaced, WFO paint scheme(1978), etc..

Past bikes- 2 1976 Kz900's, 5 1975-76 Honda CB750's, Honda 500 -4, Honda 250, Honda 125, Honda 100, Suzuki RM 250, Honda XL350, Kawasaki KLR 650, etc..

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  • TexasKZ
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Re: piston ring replacement ......help

15 Dec 2009 19:39
#339207
Might be a 1977 KZ650 B1
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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  • djcamp10
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Re: piston ring replacement ......help

18 Dec 2009 17:20
#339718
it is in fact a 77 kz650 b1. any advise.....anyone.
1977 Kz650 B1

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  • timebomb33
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Re: piston ring replacement ......help

18 Dec 2009 17:31
#339720
what did you do to determine you had a ring problem.
1973 z1 2-1974z1-a,2-1975z1-b dragbikes1015cc+1393cc, 1977kz1000,1978kz1000,1981kz1000j, 1997 zx-11, 2000 z12r,1428turbo nitrous pro-mod and a shit load of parts thats all for now leader sask.,CANADA
I THINK MY POWERBAND BROKE

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  • bountyhunter
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Re: piston ring replacement ......help

18 Dec 2009 19:08
#339740
djcamp10 wrote:
it is in fact a 77 kz650 b1. any advise.....anyone.
How many miles? Rings usually wear out in sets.
1979 KZ-750 Twin

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  • Mcdroid
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Re: piston ring replacement ......help

19 Dec 2009 09:08
#339809
bountyhunter wrote:
djcamp10 wrote:
it is in fact a 77 kz650 b1. any advise.....anyone.
How many miles? Rings usually wear out in sets.

Agreed. Despite the 650 rings being rare, if you are going through the trouble to do one set, then you should consider replacing all four sets. It is possible to replace rings without special tools (e.g. the ring compressor) but I have always found it easier to have an extra set of hands to aid in holding in the rings as you drop the jugs back onto the pistons. Others have said that one person can do this procedure w/out the compressor tool...I found that I'm not as good (or lucky) to be able to accomplish this...I have a very understanding wife who helps...in addition to bringing the occasional cold beer :)
Michael
Victoria, Texas

1982 GPz750
1977 KZ1000A
1978 KZ1000A
1982 GPz1100
1975 Z2A

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  • TeK9iNe
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Re: piston ring replacement ......help

19 Dec 2009 09:16 - 19 Dec 2009 09:18
#339813
Mcdroid has said it best. An extra set of hands is worth waiting for, and I think necessary.

Its really not difficult at all. Take old ones off, put new ones on in correct positions. Oil it all up good, slide block back on. Putting the block back is a little tricky, but just rocking the piston slightly will have it in, in no time. You don't need any special tools, just a friend/helper.

Replacing in complete sets is more natural of course, but if dollars don't permit, then I feel you man. It's all about ride time, not wrench time.

I like wreching, but i need to have one to ride at the same time. :laugh:

Good luck.
Motorcycle Shop Owner/Operator

79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors ;)
Last edit: 19 Dec 2009 09:18 by TeK9iNe.

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