It runs!!!! BUT!

  • bromz
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Re: Re:STILL NEED HELP! WONT START!

28 Apr 2015 12:25
#669885
Well I'm not at home so it's not in front of me but I'm willing to say its prob an anomaly and it's the edge of the seal that's behind the advancer

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Re: Re:STILL NEED HELP! WONT START!

28 Apr 2015 13:19
#669889
Hopefully later tonight I am gonna re check compression re verify carbs and maybe try to fire it if them 2 things check out

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Re: Re:STILL NEED HELP! WONT START!

28 Apr 2015 14:02 - 28 Apr 2015 14:11
#669895
I think it is a reflection of the machining of the actual notched shaft, pressed into the backing plate.... that connects to the crank.



Bruce
1977 KZ1000A1
2016 Triumph T120 Bonneville
Far North East Metro Denver Colorado
Last edit: 28 Apr 2015 14:11 by missionkz.

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  • SWest
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Re: Re:STILL NEED HELP! WONT START!

28 Apr 2015 17:02
#669906
OK then, the advancer is the right one, the cam timing is set correctly? There is even but marginal compression, the carbs have been done, there's spark. Have you tried starting fluid or carb spray?
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: Re:STILL NEED HELP! WONT START!

28 Apr 2015 18:46
#669918
Well yes I think cam timing is good spark is good. I'm gonna check carbs and compression tomorrow.

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Re: Re:STILL NEED HELP! WONT START!

29 Apr 2015 16:30
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So cam timing good. Great spark on all 4 cylinders. Valve clearances are in spec. Even used starting fluid. No start. Compression is still low.

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Re: Re:STILL NEED HELP! WONT START!

29 Apr 2015 16:38
#670026
I put some mmo in each cylinder and gonna let it sit over night and see if the rings are sticking

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Re: Re:STILL NEED HELP! WONT START!

30 Apr 2015 02:30
#670075
Is ignition timing correct with F mark perfectly aligned with the case mark at idle rpm?

Are plug wires from the port-side coil attached to the outside spark plugs (as they are supposed to be)?

Are plug wires from the starboard-side coil attached to the inside spark plugs (as they are supposed to be)?

Is there any possibility that the signal wires to the ignition coils' primary terminals have been inadvertently reversed?

Good Fortune! :)
1973 Z1
KZ900 LTD

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Re: STILL NEED HELP! WONT START!

30 Apr 2015 04:57 - 30 Apr 2015 12:51
#670079
Red wires are on the common side of coils and black and green wires are on the positive side of coils.when you say signal wires reversed are you talking polarity?
Last edit: 30 Apr 2015 12:51 by bromz.

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Re: Re:STILL NEED HELP! WONT START!

30 Apr 2015 13:57
#670151
Well unless anyone has anymore suggestions I will probably start tearing the engine back down tonight and inspecting valve seats and cylinder walls. Only other thing I can think of is turn the advancer 180. I know it's on there correctly now but I can't think of anything else to try and get this bike to fire.

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Re: Re:STILL NEED HELP! WONT START!

30 Apr 2015 13:59 - 30 Apr 2015 14:00
#670152
Yeah, do that first or switch the wires.
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: 30 Apr 2015 14:00 by SWest.

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Re: STILL NEED HELP! WONT START!

30 Apr 2015 16:57
#670172
Check out the new thread in electrical ....starter motor vs push starting ... might be a crazy idea but I've bump started mine in the old days after flooding it and running down the battery with one of my sons and wife more than a few times. :blush:
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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