no spark when using electric start, kick works.

paul_the_welder
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no spark when using electric start, kick works.

30 Mar 2010 16:43

1980 kz650. I noticed its really hard to start with electric start.Lately it hasent been starting at all with electric. I checked and its not getting a spark when you engage the starter. I can kick it once and it fires off even cold. Runs good. Any idea's?

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hoghaterkaw
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Re: no spark when using electric start, kick works.

30 Mar 2010 17:25

#357273

Your battery is too weak. Do a load test. Most likely you need a new battery.

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paul_the_welder
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Re: no spark when using electric start, kick works.

30 Mar 2010 17:41

#357278

The battery spins the motor well. Way fast enough to start it. Just when the starter is engaged, its not getting spark.

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roy-b-boy-b
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Re: no spark when using electric start, kick works.

30 Mar 2010 18:04

#357291

Points bike? When you use the starter you might not have enough fire for the plugs.

I was helping a friend work on his bike and it wouldn't start. spun over fine. I kicked it one time and it fired.

He had to try as he has never kicked a street bike over. :laugh: Roy

1979 LTD Street Fighter.1977 KZ1000

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paul_the_welder
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Re: no spark when using electric start, kick works.

30 Mar 2010 18:10

#357297

roy-b-boy-b wrote:

Points bike? When you use the starter you might not have enough fire for the plugs.

I was helping a friend work on his bike and it wouldn't start. spun over fine. I kicked it one time and it fired.

He had to try as he has never kicked a street bike over. :laugh: Roy

Don't know? 1980 model. I figured it was electronic ignition.

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otakar
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Re: no spark when using electric start, kick works.

30 Mar 2010 18:22

#357307

You might some corroded connectors along with the week battery. Yes I do agree about the week battery.

74 Z1-A stock
76 KZ-900 Totaly stock vice MAC pipe
77 KZ-1000A stock
78 Z1-R 100%MINT 500 original Mi.
78 Z1-R Yoshi 1103 kit stage 1 cams Yoshi pipe. Etc
79 KZ-1300 (1400)
80 KZ-1300
81 Scratch built GPz1150R
82 KZ1000

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trianglelaguna
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Re: no spark when using electric start, kick works.

30 Mar 2010 18:23

#357310

switch in clutch lever(if it has one) is /working still/depressing ok????

1976 KZ900
2003 ZX12R
2007 FZ1000
2004 ninja 250R for wife

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paul_the_welder
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Re: no spark when using electric start, kick works.

30 Mar 2010 18:27

#357314

otakar wrote:

You might some corroded connectors along with the week battery. Yes I do agree about the week battery.

You mean weak battery?

So a battery could light up the headlight well and spin the motor well and still be bad?

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otakar
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Re: no spark when using electric start, kick works.

30 Mar 2010 18:31

#357319

That is correct. Try to turn off the headlight by pulling the fuse and see if the bike starts than.

74 Z1-A stock
76 KZ-900 Totaly stock vice MAC pipe
77 KZ-1000A stock
78 Z1-R 100%MINT 500 original Mi.
78 Z1-R Yoshi 1103 kit stage 1 cams Yoshi pipe. Etc
79 KZ-1300 (1400)
80 KZ-1300
81 Scratch built GPz1150R
82 KZ1000

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JR
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Re: no spark when using electric start, kick works.

30 Mar 2010 20:06 - 31 Mar 2010 06:21

#357347

1980 kz750E1, Delkevic exhaust

Last edit: 31 Mar 2010 06:21 by JR.

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bountyhunter
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Re: no spark when using electric start, kick works.

30 Mar 2010 23:14 - 30 Mar 2010 23:15

#357375

A weak coil can make a bike really hard to start on the electric starter because the battery voltage dips just enough to starve the spark.

Guess how I learned that.....:laugh:

But check the battery first: if the batt voltage drops below about 9 - 9.5V under starter crank, it's probably hosed.

1979 KZ-750 Twin

Last edit: 30 Mar 2010 23:15 by bountyhunter.

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paul_the_welder
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Re: no spark when using electric start, kick works.

31 Mar 2010 15:55

#357530

thanks for the help guys, I'll check the battery out.

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