Weak spark with new ign. parts

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16 Mar 2016 12:39 #715734 by Helpme
Weak spark with new ign. parts was created by Helpme
1979 KZ750B4, new points, condensor, and coil, all genuine Kawasaki. Same weak spark I had before new parts. Everything is gapped correctly. Spark plugs are NGK B6ES. Battery is good.

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16 Mar 2016 12:52 #715735 by 650ed
Replied by 650ed on topic Weak spark with new ign. parts
How old is the battery? Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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16 Mar 2016 13:02 #715739 by Helpme
Replied by Helpme on topic Weak spark with new ign. parts
Battery is a year and change. Bought it when I bought the bike.

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  • SWest
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  • Sustaining Member
  • 10 22 2014
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16 Mar 2016 13:03 #715742 by SWest
Replied by SWest on topic Weak spark with new ign. parts
Have it load tested.
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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16 Mar 2016 13:18 #715745 by Helpme
Replied by Helpme on topic Weak spark with new ign. parts
At a test of 125 amps, it reads 8 volts. Pretty sure it's a bit much for a bike battery to be pushing, but if there's some way to estimate what it would be based on that?

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16 Mar 2016 19:55 #715783 by spdygon
Replied by spdygon on topic Weak spark with new ign. parts
How do you know what the spark is suppose to look like from your bike?
When I check mine...with lights on I can just see a strike. With lights off much brighter .
Don't expect a big fat strike
1982 GS1000sz Katana ( #15...17K Miles)
1982 GS1000sz Katana ( # 297....7100k Miles)
1978 Kz1000 Z1R. 10K Miles1
1978 kz1000 z1r 27k miles
1977 KZ 1000 A ( Project ) 54K Miles
1976 Kz900A4 (Red)21K miles
1976 Kz900A4 ( Red)7500 miles
1974 Z1 900 project

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17 Mar 2016 04:25 - 17 Mar 2016 05:17 #715799 by Helpme
Replied by Helpme on topic Weak spark with new ign. parts
Today it looks better in the dark than yesterday. Waiting on a new fuel petcock to see if everything is in order for it to run.
Last edit: 17 Mar 2016 05:17 by Helpme.

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