My '98 might run today!! - Kawasaki KLR 650 Forum
1987 to 2007 Wrenching & Mods For maintaining, repair or modifications of Generation 1 KLR's. 2007 and earlier.

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post #1 of 15 Old 09-04-2013, 11:06 AM Thread Starter
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Join Date: May 2013
Location: Gainesboro, TN
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My '98 might run today!!

Original symptom: would not crank. fixed that & the symptom changed to no spark. Have been on that for almost a month and am sure I completly ruined Damocles and Tom. Checked(this morning) the connections from the excitor coil and read @30v AC. checked the blk to the coil primary and had plenty activity while holding the starter button. Pulled the blk/yel connector off to look at it. Cleaned it, reconnected same, hit th' start button and had spark! Now my symptom is no fuel - - tank is sitting on the ground! Gone to take care of that right now- back shortly....IT's ALIVE!! And I know more about it than I did a month ago....Thanks to the patience of those who took their time to work with me.

Jim

Last edited by Jim Sizemore; 09-04-2013 at 01:58 PM.
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post #2 of 15 Old 09-04-2013, 12:30 PM
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Good luck with it firing up (crosses fingers)

I still have 2 weeks left until my '84 is up and running
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post #3 of 15 Old 09-05-2013, 07:29 PM
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Sometimes, Jim Sizemore, STARTING FLUID is your friend!

(Have fire extinguisher handy; no joke.)
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post #4 of 15 Old 09-05-2013, 09:12 PM Thread Starter
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Thanks, Damocles for the reply. I was afraid I might never hear from you or Tom again. If this episode had been with my car or truck, I would most likely have started with the coil('cause I pretty well understand that ign system - I knew absolutely nothing about the klr. Thanks to you folks, I pretty well understand it now. I thought you might have been interested in my reading with a Simpson 260 AC meter across the exciter coil....

Does the cdi pulse the primary - or kill the voltage already there? Wondering about time needed to build up the magnetic field?? However it does it - it works pretty good! This bike amazes me the way it just putt putts along. I'm looking pretty hard at an add someone here has for a "touring windscreen", but don'r remember where the add was.

Would the starting fluid have led me to a bad neg. connection at the coil sooner? There was no spark, due to the dirty connection. I always try to stay away from either on my vehicles. My son & grandsons are currently trying to get my '77 240d Mercedes running(been sitting for several years. We MAY have to resort to a gasoline soaked rag placed at the air intake? That's worked for me in the past.

Jim
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post #5 of 15 Old 09-06-2013, 12:46 AM
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The pulse from the pickup coil (senses timing mass on alternator rotor) triggers a thyristor discharging a capacitor through the primary ignition coil winding; the ignition coil steps-up that voltage through its secondary winding, firing the spark plug.

CAPACITIVE (as in, a capacitor) DISCHARGE (as in, discharging a charged capacitor, in this case across the ignition coil primary winding) IGNITION (a spark occurs across the spark plug electrodes, when the ignition coil transforms the voltage from the discharging capacitor to the high voltage required to arc across the spark plug electrodes and ignite the air/fuel mixture in the cylinder); "CDI!"

The use of starting fluid is of no consequence to your electrics.

If you have SPARK, COMPRESSION, and a COMBUSTIBLE MIXTURE, oughta start! The starting fluid insures a combustible mixture.

Good luck!

Last edited by Damocles; 09-06-2013 at 12:50 AM.
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post #6 of 15 Old 09-06-2013, 01:39 PM Thread Starter
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Quote:
Originally Posted by Damocles View Post

The use of starting fluid is of no consequence to your electrics.

If you have SPARK, COMPRESSION, and a COMBUSTIBLE MIXTURE, oughta start! The starting fluid insures a combustible mixture.

Good luck!
Seems that you have missed my stating that my bike now runs like a new one! AND thanking you guys for helping me understand our ignition theory.

I just couldn't understand your advise about "starting fluid could be my friend" - when I had indicated there was no spark at the plug,,,,

Jim

Last edited by Jim Sizemore; 09-06-2013 at 02:25 PM.
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post #7 of 15 Old 09-06-2013, 02:07 PM
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Quote:
Originally Posted by Jim Sizemore View Post
Seems that you have missed my stating that my bike now runs like a new one! AND thanking you guys for helping me understand ur ignition theory.

I just couldn't understand your advise about "starting fluid could be my friend" - when I had indicated there was no spark at the plug,,,,

Jim
I think he was referring to using it on your first start up if it were not firing up easily.
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post #8 of 15 Old 09-06-2013, 02:30 PM Thread Starter
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Thanks for clearing that up, MIllhouse.

Jim
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post #9 of 15 Old 09-06-2013, 03:31 PM
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Quote:
Originally Posted by Jim Sizemore View Post
Seems that you have missed my stating that my bike now runs like a new one!
Silly me; at no point in this thread previously did I discern any remark suggesting your bike, "now runs like a new one."

You said you had spark, but I think like Millhouse, I did not know you successfully started your bike from your previous posts, like this one:
Quote:
Original symptom: would not crank. fixed that & the symptom changed to no spark. Have been on that for almost a month and am sure I completly ruined Damocles and Tom. Checked(this morning) the connections from the excitor coil and read @30v AC. checked the blk to the coil primary and had plenty activity while holding the starter button. Pulled the blk/yel connector off to look at it. Cleaned it, reconnected same, hit th' start button and had spark! Now my symptom is no fuel - - tank is sitting on the ground! Gone to take care of that right now- back shortly....IT's ALIVE!! And I know more about it than I did a month ago....Thanks to the patience of those who took their time to work with me.

Jim
Did, "IT's ALIVE!!" mean you started the engine, and it runs like a new one? Maybe so. The conclusion did not appear abundantly obvious, to me, or to Millhouse, I think.

Hey, I saw the first-run screening of "Frankenstein," myself!

Glad you got your bike running.
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post #10 of 15 Old 09-06-2013, 04:44 PM Thread Starter
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Join Date: May 2013
Location: Gainesboro, TN
Posts: 114
Boris used to chase me home from the Jackson theater in Cincinnati every time I would go to see Frankenstein - but I was more scared when he played"the mummy"! & he would walk up that incline to John Carridean caling "Carlis - carlis" thru the tanna leaf smoke!

Thanks, Damocles....

Jim
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