Top end tear down?

  • SWest
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Re: Top end tear down?

08 Jul 2016 19:30
#734325
When I was burning oil I had to down one step on the pilots.
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: Top end tear down?

10 Jul 2016 06:12
#734428
Defend132 wrote: The main jet is 117.5 and the pilot is 17.5. the needle is on notch 3.

You are in the neighborhood.


.
2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected

www.dotheton.com/index.php?threads/dr-je...air-of-kz400s.39120/


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Re: Top end tear down?

13 Jul 2016 17:54 - 13 Jul 2016 18:24
#734836
So I should go up to a 120 main and 20 pilot jet? I also cleaned out the tank and put new gas filters in. Put some carb cleaner in the number 1 cylinder and let it sit a couple of days. It seems to run better but it still has a small hesitation and the number 1 spark plug is fouled with dry soot not wet. Do you think the carbs were not synced properly? Would that cause just one plug to be fouled?
Last edit: 13 Jul 2016 18:24 by Defend132.

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Re: Top end tear down?

13 Jul 2016 18:34
#734845
Pics of plugs?
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: Top end tear down?

13 Jul 2016 19:05
#734849
In this heat, I dropped pilot jets one size down from 20 to 17.5 and was never satisfied with 112.5 to 115 so I moved up to 117.5 mains.
Bruce
1977 KZ1000A1
2016 Triumph T120 Bonneville
Far North East Metro Denver Colorado

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Re: Top end tear down?

13 Jul 2016 19:08
#734850
First pic is cylinder on the left if you were sitting on the bike. Left to right.

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Re: Top end tear down?

13 Jul 2016 20:20
#734863
Rich and #4 looks fuel fouled.
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: Top end tear down?

14 Jul 2016 04:37 - 14 Jul 2016 04:58
#734880
Any ideas on the cause?Lower float height again? Points adjusted? Sync carbs again? Could it be that the carbs were not synced properly? All the plugs were fuel fouled before the sync. now only one is.
Last edit: 14 Jul 2016 04:58 by Defend132.

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Re: Top end tear down?

14 Jul 2016 05:52
#734883
Check the spark plug HT connection on #4.
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: Top end tear down?

14 Jul 2016 08:05
#734899
HT connection?

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Re: Top end tear down?

14 Jul 2016 08:11
#734901
Spark plug wires. You can nip 1/4" off each end to make a better connection. Also the plug caps might be shot.
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: Top end tear down?

14 Jul 2016 08:26
#734904
I put on brand new wires, caps and coils

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