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i know this is off topic, BUT...

  • Thread starter Thread starter Anonymous
  • Start date Start date
A

Anonymous

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ok im fixing up this old kawasaki ke 100 dirt bike i have in the garage. now the problem that i am having is that after i run the bike for a little while, the spark plug gets burned out an wont work anymore. and its not fouled out or anything. then as soon as i put another on in, it works fine for another little while. im not quite sure if i have the coil wired up properly. i have it wired directly to the stator. is there suposed to be any voltage regulator in there before the coil?
thanks for any help you can give me guys.
 
If it's wired directly to the stator it's getting AC voltage, not DC. The coil should come after the AC voltage passes through an r/r.
 
but if thats the case, there shouldnt be any spark at all? i mean the bike runs fine, untill the spark plug goes dead that is. so would the bike still run if the coil was getting AC voltage?
 
The only thing that should be hooked up to the stator is an r/r. The only reason more damage hasn't been done is a small bike like that probably isn't putting out much AC voltage. Keep running it like that though and you will eventually do more damage. If the bike has a battery in it at least hook the coil up to the battery. The trigger for the coil is negative. It gets positive current full time. Your probably melting down the core of the plug the way it is hooked up. That's why you don't see any visible signs of fouling.
 
thanks alot billy. u wouldnt hapen to have any tips on wiring this up would u ? the wiring harness is a mess
thanks for all ur help
 
on little dirt bikes like that (actualy most dirt bikes) they don't have stators, they have charge coils that normaly feed power to a ignitor box that then connects to the coil.
you did not say what year it was, some of the early KE100's also had street lighting and where wired differantly, it would help to know what year it is.

what are you mixing the fuel to oil ratio at, or are you using the oil injection, and is the flow turned up (if it is adjustable, some are)?
 
its a 1983 an it did have street lighting but the guy i baught it off took it all off, an the wiring is a mess.
 
im just using the oil injection an i have no idea what the mixing ratio is
 
Pete, How is the "off topic" if it is you thread? and is therefore the topic!!!
Dink :wink: :lol: :lol:
 
its off topic because its a kawasaki , not a suzuki

also it isnt a stator, its a magneto or somthin like that, so would it still be AC volts comming from there?
 
ok I looked it up and the 83 used a exciter coil, single points, condensor (possible problem spot as is the points) then the coil and plug.

the points and condensor are mounted under the rotor on the left side of the engine it is dc power but it is not regulated and doesnt need to be, the battery and light charging system is separate.

this system is pretty much just like the system used on the average old lawn mower. (new mowers use electronic ignition)
 
After I got to thinking about it I suspected it could be an exciter coil. Race bikes use this type of system, also called a trigger coil. Sometimes they also run a total loss system.
 
yes thats ecactly what it has, i never had a clue what it was called tho. any idea as to why it would be killing my plugs tho?? could it possibly be my coil thats actually the problem??
 
Two strokes are hard on plugs. They can look perfectly good and still foul. Do they look wet when they foul? As Leon said it could be the condensor. That was the weak spot in those old ignition systems. If it runs okay right after you replace the plug I wouldn't think it would be coil problems.
 
so u think that the plugs are just fouling out? yah i mean they look ok, little wet but nothin that i woulda concidered serious
 
I had an T305 in the late '60s and most of the '70s. It fouled plugs and when you pulled them you would swear nothing was wrong. They would look wet though from unburned fuel. You just have to keep them tuned as good as you can get them. Make sure the timing is right, points are gapped correctly, and mixture is as close as you can get it to being right. you can have everything right and a two stroke will still foul plugs. You might try the next hotter plug.
 
u houldnt hapen to have an idea on what a good point gap should be set at would u ?
man i gota thank u guys for all ur help i would of never even thought of some of these solutions to my problems , specially u billy.
 
It's been ages since I tuned my old T305, but I want to say it was something like .018"-.020". You might try closing the gap on the plugs a little too.
 
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