It runs!!!! BUT!

  • KZB2 650
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Re: It runs!!!! BUT!

21 May 2015 10:00
#672997
If the oil ring was overlapped wouldn't it have shown up in the first 2 rides ?? I don't know just throwing out a idea. :unsure:

I would be sick if I would of have to of torn mine down again..... was a big worry of mine till I had 10 - 20 miles on it (getting a oil ring overlapped) from all I read on it happening.
1978 KZ650 b-2
700cc Wiseco kit 10 to 1.
1980 KZ750 cam, ape springs, stock clutch/ Barnett springs.
Vance and Hines Header w/ comp baffle and Ape pods, Dyna S and green coils, copper wires.
29MM smooth bores W/ 17.5 pilots, 0-6s and 117.5 main
16/42 gearing X ring chain and alum rear JT sprocket.

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  • SWest
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  • bromz
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Re: Re:It runs!!!! BUT!

21 May 2015 13:01
#673012
Intakes are clean as a whistle. Ex on #2 carboned. Tool head off rechecked all valve seals. Replaced both on #2 just in case. Pulled cylinders and what would you know expander ring overlapped!!

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  • 80B4
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Re: Re:It runs!!!! BUT!

21 May 2015 14:01
#673020
Good, glad you found the problem!
1980B4 1000
1978 Z1R
1978 B3 750

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  • kawi810
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Re: Re:It runs!!!! BUT!

21 May 2015 16:53
#673046
yes it is a comon problem .i make my ring compresers out of hose clamps and soda bottles justs snug them up enoughto compres the rings.when you over lap a ring it might score the cylinder. oil weapage.
original owner of a 1984 gpz 750
1985 turbo 750 stock, being restored.
1984 gpz 750 with 810 cc wiesco's megacycle cams(471-10) 34 mm flatslides v&h pipe ported head dyna ignition. bottom end, crank case from turbo 750 and sprockets.

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Re: Re:It runs!!!! BUT!

21 May 2015 17:08
#673048
bromz wrote: Intakes are clean as a whistle. Ex on #2 carboned. Tool head off rechecked all valve seals. Replaced both on #2 just in case. Pulled cylinders and what would you know expander ring overlapped!!

No scoring I hope.
Steve

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Re: Re:It runs!!!! BUT!

28 May 2015 05:35
#674142
Well guys I replaced valve stem seals on both intake and exauhst on number 2 cylinder, replaced the oil expander ring on number 2 cylinder. Put it back together fired it And sounds great except still smoking. I'm just gonna put some miles on her and see if it clears up.

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