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Electrics suck, let's go back to steam power...


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Hermit

 
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Electrics suck, let's go back to steam power...

Wed Mar 01, 2006 4:02 pm » Post: #1 » Download Post

Right gents, picture the scene;

You are knelt beside your NSR, you have your fairing off so you can get at the motor and stuff easily and one of your sparkplugs (the lower one for example) is unscrewed but still plugged into the cap. You touch the electrode onto the cylinder head and turn the engine over using the kick starter. Its plenty dark enough to see a spark if one is there, question is, do you see a spark? I know i don't... Just wondered if you're not actually supposed to get a spark in that situation, because it only works if it is fully screwed in or something daft like that?

Sounds like a right dumbass, noob question when i read back through it coz i've always seen a spark when i've done it on my other bikes but i'm getting desperate, so i'm gonna ask you guys anyway!!

Thanks for your help in advance
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Andy
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Wed Mar 01, 2006 4:12 pm » Post: #2 » Download Post

Yes, you should see a spark. It may not appear to be the strongest, brightest spark on the planet, but there should be a spark.
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Chester362
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Wed Mar 01, 2006 9:37 pm » Post: #3 » Download Post

Have you not had it running since you built it up with the new parts you got?

If I remember right you fitted an HRC ignition box, it wouldn`t run, then wouldn`t run when you put it back to standard?

Sorry if I`m stating the obvious but these need the battery to run the ignition system. Not the usual magneto type ignition.

Sorry!!!! just read your post on the MC18 thread. Always putting my foot in it.

Have you sent Andy a donation & asked him if he wouldn`t mind letting you have a look at the HRC wiring loom diagram?
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StephenRC45
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Wed Mar 01, 2006 9:51 pm » Post: #4 » Download Post

Sometimes the spark can jump the electrode and will look like there isnt one, best way to make 100% sure is get little sister, wife or girl freind to hold said spark plug while you kick, this is a 100% sure fire way to see if you do or do not have a spark.

Ive found on two mc21 harness now (one hrc one) a very blackened connector going into the left hand pgm connector (white 16 pin) which killed a spark.
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Chester362
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Wed Mar 01, 2006 9:59 pm » Post: #5 » Download Post

Looking at the diagram on the workshop section there`s a common connection on the white plug for the the ignition coils & another for the pulse generator pick ups.

I`d start looking there. (If you haven`t already).
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Hermit

 
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Fri Mar 03, 2006 7:59 pm » Post: #6 » Download Post

Thanks for the ideas dudes,

RC45s answer is what i thought (hoped) might be going on, coz there is absolutely no reason why it shouldn't work as far as i can see, so i wondered if it was ok but for some reason i just couldn't SEE the spark in that situation. Thanks to chester for looking up the electrics for me!
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