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6 bent !!!!!!!!!!!!!!!!!! 9 years 7 months ago #4270

  • bobber-edd
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ok ive got 6 bent inlet valves this is the reason why the last guy sold the bike ,it wont start mate!!!the head is off now and im looking for a new head ,,,,anyone got one in the uk ?? :unsure:
can amyone advise me why this has happened is it the timimg ,was out or slipped a tooth as i dont want to put it back together like that
zed 13 1979 A1 model

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6 bent !!!!!!!!!!!!!!!!!! 9 years 7 months ago #4271

  • KZQ
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Most likely the cam chain tensioner failed. I suggest that you read through the FAQ section on this site. There are many of us who have gone to manual tensioners or refitted tensioners fron ZX11's in order to avoid just this problem.

Good luck with your repair.

Bill
1947 Indian Chief, 1968 BSA Shooting Star, 1970 BSA 650 Lightning, 1974 Kawasaki W3, 1976 KZ900 A4, 1979 KZ750 B4, 1979 KZ750 B4 Trike, 1980 KZ550, 1981 KZ1300, 1982 KZ1100 Spectre, 1985 Kawasaki ZN1300, 1987 Yamaha Trail Way, 2000 Honda Valkyrie Tourer, 1981 GL 1100, 2009 Yamaha RoadLiner S
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6 bent !!!!!!!!!!!!!!!!!! 9 years 7 months ago #4272

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If your bike has already been upgraded with a new tensioner the problem was probably improper cam timing during a previous reassembly.

Bill
1947 Indian Chief, 1968 BSA Shooting Star, 1970 BSA 650 Lightning, 1974 Kawasaki W3, 1976 KZ900 A4, 1979 KZ750 B4, 1979 KZ750 B4 Trike, 1980 KZ550, 1981 KZ1300, 1982 KZ1100 Spectre, 1985 Kawasaki ZN1300, 1987 Yamaha Trail Way, 2000 Honda Valkyrie Tourer, 1981 GL 1100, 2009 Yamaha RoadLiner S
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6 bent !!!!!!!!!!!!!!!!!! 9 years 7 months ago #4273

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cam chain ordered i wondered what was up as the timing marks was spot on
zed 13 1979 A1 model
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6 bent !!!!!!!!!!!!!!!!!! 9 years 7 months ago #4279

  • RickG
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Got it wrong and bent the valves so it was corrected but not had the valves fixed. still wont start so sell the POJ I never liked it anyway.
I would like a dollar for every time I have seen that syndrome and fixed it.
The best one we used to get was when I worked for Suzuki and "the engine seized for no reason at all........ it has oil in the tank see" yes sir but it has no oil in the delivery lined so it will cost you this much and next time be a bit smarter.
Live your life so that the Westbro Baptist Church will want to picket your funeral
Z1300 A1 x 2

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6 bent !!!!!!!!!!!!!!!!!! 9 years 7 months ago #4283

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bobber-edd wrote: cam chain ordered i wondered what was up as the timing marks was spot on


Something's not making sense to me. If the cam chain had slipped or had been reassembled improperly the timing marks would not be right.

Check the diagrams on pages 67 through 69 of the service manual above (KZ1300-A1 ServiceManual.pdf) for the proper cam timing procedures.

Best of Luck!
Bill
1947 Indian Chief, 1968 BSA Shooting Star, 1970 BSA 650 Lightning, 1974 Kawasaki W3, 1976 KZ900 A4, 1979 KZ750 B4, 1979 KZ750 B4 Trike, 1980 KZ550, 1981 KZ1300, 1982 KZ1100 Spectre, 1985 Kawasaki ZN1300, 1987 Yamaha Trail Way, 2000 Honda Valkyrie Tourer, 1981 GL 1100, 2009 Yamaha RoadLiner S
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