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Author Topic: No spark coming out of the Big 5 hundie HT lead ?  (Read 7321 times)

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Offline kiwikx500

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No spark coming out of the Big 5 hundie HT lead ?
« on: May 08, 2006, 10:18:43 PM »
Is there any common parts along the electrical circuit that goes faulty ? Cheers  8-)
« Last Edit: May 10, 2006, 11:46:36 AM by kiwikx500 »
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Offline hughes

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Re: No spark coming out of HT lead ?
« Reply #1 on: May 09, 2006, 02:26:59 AM »
No spark?? Disconnect the kill switch.
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Offline kiwikx500

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Re: No spark coming out of HT lead ?
« Reply #2 on: May 09, 2006, 02:37:12 AM »
I just fitted a new kill switch,it was switching the bike off when i pushed on it,will disconnect it though - thanks - its been an on going problem with spark before i fiited the kill switch,like something has been on the way out and may have finally given up.Can someone please tell me how reliable the electronic ignition and the generator that generates the electrical current for the spark are ?  :-)
« Last Edit: May 09, 2006, 02:41:28 AM by kiwikx500 »
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Offline kiwikx500

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Re: No spark coming out of HT lead ?
« Reply #3 on: May 09, 2006, 02:47:50 AM »
Hughes i'll check in all the places you mentioned in the best place to test for a spark thread too,cheers   8-)
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Offline alan

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Re: No spark coming out of HT lead ?
« Reply #4 on: May 09, 2006, 03:44:53 AM »
I will check my KX5 service manual today and see what is in there trouble shooting section the CDI.
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Offline kiwikx500

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Re: No spark coming out of the Big 5 hundie HT lead ?
« Reply #5 on: May 10, 2006, 11:47:54 AM »
Sounds good thanks Alan,Cheers  8-)
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Offline alan

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Re: No spark coming out of the Big 5 hundie HT lead ?
« Reply #6 on: May 11, 2006, 07:42:23 AM »
Ok this is what I found in the Service Manual.
1st. the coil
3 needle arching distance 7 mm or more
Primary winding resistance  1.0 Ohm (+)or(-)15 %
Secondary winding resistance  5.9K Ohm (+)or(-)15 %

Next The trouble shooting section for no spark.
No Spark: Weak Spark
Spark Plug dirty, Broken, or Maladjusted
Spark Plug cap or high tension wiring trouble
Spark Plug cap not in good contact
Spark Plug incorrect
CDI unit in trouble
ignition coil trouble
ignition coil resistor open
Flywheel Magneto Damage
Wiring shorted or open!
They forgot! Kill Switch!

Don't forget to let us know what you find, Please

Let me know if you need the CDI testing INFO?
I will have to scan it!

Alan
« Last Edit: May 11, 2006, 08:31:53 AM by alan »
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Offline Danger4u2

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Re: No spark coming out of the Big 5 hundie HT lead ?
« Reply #7 on: May 11, 2006, 11:09:19 AM »
Make sure your battery has a full charge.
Danger
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Offline Danger4u2

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Re: No spark coming out of the Big 5 hundie HT lead ?
« Reply #8 on: May 11, 2006, 11:10:56 AM »
Quote from: Danger4u2 on May 11, 2006, 11:09:19 AM
Make sure your battery has a full charge.
Danger
Ok guys stop looking for your battery that was a joke.
Danger
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Offline kiwikx500

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Re: No spark coming out of the Big 5 hundie HT lead ?
« Reply #9 on: May 11, 2006, 12:27:20 PM »
My battery alright as the electric start working great lol,BIG thumbs up to you Alan - top man as always!
I will proberly not be looking at it for a few weeks now as went to the miss work social - karting,soon as i walked in and seen the seatbelts fitted to the karts i thought bad idea,went to pass one of my partners work mates on the back straight and she did not keep her track position and forced me between her kart and some tyres,was not so much the impact but more the snap lock seatbelt that has cracked some ribs  :x,quite ironic really as i have a racing kart sitting in the garage that i have used for years with no injury,its like the dude that rides a big k5 then breaks a leg on his sons 80,will let you know when i track down the problem Alan - thanks,:-D
« Last Edit: May 11, 2006, 12:40:45 PM by kiwikx500 »
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Offline Danger4u2

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Re: No spark coming out of the Big 5 hundie HT lead ?
« Reply #10 on: May 16, 2006, 02:14:34 AM »
Hope this helps,
Danger

Stator Coil Test Specifications  (Clymer)

KX500
 1983-1985                                  Ohms
   Black/red to black/yellow          336-504
   Red to black/yellow                 14.2-21.4
   White/red to black/yellow         10.4-15.6
 1986
   Black/red to black/yellow          432-648
   White/red to white/green          4.0-6.0
 1987-1989
   Black/white to black/yellow       432-648
   White/red to white/green          4.0-6.0
 1990-on
   Black/white to black/yellow       153-230
   White/red to black/yellow         7.9-11.9

Ignition coil test specifications (Clymer)

Primary
KX500
1983-1986              0.85-1.15 ohms
1987                      0.8-1.2    ohms
1988-1989              0.85-1.15 ohms
1990-on                 0.26-0.36 ohms

Secondary
KX500
1983-1986              5.0-6.8 K ohms
1987                      5.6-8.4 K ohms
1988-1989              5.0-6.8 K ohms
1990-on                 2.6-3.6 K ohms

Flywheel (Rotor) Tightening Torque  (Clymer)
KX500                    N-m 78        ft.-lb. 58

Ignition Timing         (Clymer)
KX500
1986                       15deg. BTDC @ 6,000 RPM 
1987-1989               17deg. BTDC @ 6,000 RPM
1990-on                  19deg. BTDC @ 6,000 RPM
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Offline Danger4u2

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Re: No spark coming out of the Big 5 hundie HT lead ?
« Reply #11 on: May 16, 2006, 03:10:08 AM »
This might help also, make copy.
Danger
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Offline kiwikx500

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Re: No spark coming out of the Big 5 hundie HT lead ?
« Reply #12 on: May 16, 2006, 10:05:52 AM »
Cheers Danger4u2 top stuff! Was hoping someone might list some wiring diagrams,will be handy for future reference for other members too,it would be great to have a section on this site with wiring diagrams,exploded drawing of engine parts for each model etc,the scanner site i go to has user manuals for every uniden scanner which is handy if you are not home but near a computer, could work the same out in the bush with the K5 if something is not running right,the fault could be looked up on a wireless etc or for at home if a particular manual is not owned .
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Offline Timbowe

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Re: No spark coming out of the Big 5 hundie HT lead ?
« Reply #13 on: May 16, 2006, 07:59:44 PM »
There is a site on the net somewhere with the fische on it. Part numbers and all. www.bikebandit.com  Check it out.
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Offline kiwikx500

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Re: No spark coming out of the Big 5 hundie HT lead ?
« Reply #14 on: May 16, 2006, 08:37:54 PM »
1 out of it site! Cheers for that Timbowe,will be the shiz for identifying parts  :-D
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1990 KX 500
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