Why did KLR change from CDI to TCI? - Page 3 - Kawasaki KLR 650 Forum
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post #21 of 27 Old 09-09-2019, 09:33 AM
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Want to make your own CDI?

Here's how:

https://www.homemade-circuits.com/ho...ive-discharge/


“You better put down that gun. You got two ways to go, put it down or use it. Even if you tie me, you’re gonna be dead.” "John Russell" (Paul Newman), Hombre
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post #22 of 27 Old 09-09-2019, 02:57 PM
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Originally Posted by JdgDReDD View Post
...So tell me, what of ignition does a snowmobile have? (since they went away from points)...
That would be either AC or DC CDI, depending on whether or not the source of juice comes from a magneto/alternator or from the battery.

But then, you knew that. Either that or you're being deliberately obtuse or practicing willful ignorance.
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post #23 of 27 Old 09-09-2019, 07:01 PM
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Originally Posted by JdgDReDD View Post
So tell me, what of ignition does a snowmobile have? (since they went away from points)

Mag CDI ....... KLF 220 mag cdi, KLT 250 i believe has Battery CDI. Gen 2 KLR 650 TCBI, Moto cross bikes .... Mag CDI

Mag being where the power is coming from.
"Going Away From Points" ain't new; Kawasaki marketeers proclaimed their Generation 2s had, "breakerless" ignitions; but . . . so did the Generation 1s! In both these models, thyristors (Silicon Controlled Rectifiers, SCRs) are triggered by pulses from pickup coils, acting as switches, turning ON circuitry connecting capacitive discharge power to the primary ignition coil windings in the case of Generation 1s (CDI), and turning OFF circuitry connecting power to the primary ignition coil windings of Generation 2s (inductive discharge ignition).

Further, "Getting Away From Points" has nothing to do with Capacitive Discharge Ignitions (CDI) or Inductive Discharge Ignitions (as in Generation 2s); electronic switching (vs. contact points) has been around for both ignition types for a long time.

Nomenclature and semantics play a role in these discussions, it seems! I agree with Tom's definition of, "magneto." Yet, when the word, "magneto," is combined with the word, "ignition," as in, "magneto ignition," a more specific context arises. The lady instructing the aviation students in this clip does a pretty good job of explaining, "magneto ignition" systems:


I think early post-World War II Piper Cubs had DUAL magneto ignitions (for aviation safety redundancy, I suppose); anyway, I believe a cockpit control switch could engage either or both magnetos; they were tested in pre-flight, by switching from one to the other and noting respective engine RPM.

“You better put down that gun. You got two ways to go, put it down or use it. Even if you tie me, you’re gonna be dead.” "John Russell" (Paul Newman), Hombre

Last edited by Damocles; 09-09-2019 at 08:38 PM.
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post #24 of 27 Old 12-01-2019, 10:07 AM
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Originally Posted by JdgDReDD View Post
ac cdi = mag cdi

Dc cdi = Battery cdi,

thanks for making my point Tom
I think the context in Tom's comment was in reply to a question about, SNOWMOBILE ignitions. CDIs may be powered by either AC or DC, depending upon design.

In my observation of conventional usage over the years, the term, "Magneto Ignition," when applied to motorcycle and aircraft engines (see video clip above) has nomenclature consequences different from those of snowmobile engines, IMHO; as in, no CDI in motorcycle/aircraft engine magneto ignitions.

A delicate, fragile taxonomy, surely; I take full responsibility for any, "Failure to communicate!"

Some (including Kawasaki marketing) refer to the igniter in Generation 2 ignitions as, "The CDI." It ain't. Instead, the latter-day igniter is an electronic switch, replacing the points (the "breakers") in previous inductive discharge ignition design. "Fully-Transistorized Breakerless Ignition," the Generation 2 system was called, originally; an INDUCTIVE DISCHARGE ignition, versus a CAPACITIVE DISCHARGE one (as were the Generation 1 ignitions).

YMMV!


“You better put down that gun. You got two ways to go, put it down or use it. Even if you tie me, you’re gonna be dead.” "John Russell" (Paul Newman), Hombre
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post #25 of 27 Old 12-01-2019, 10:55 AM
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its exactly what i was saying except with different terminology. EXACTLY Dom. and if you were as smart as you think you are and try to project, you would have realized it at the get go. and if you still don't realize it or won't admit it, thats just pathetic. I guess its only true when tom says it not when i say it .
Is there an ignore button on this sight?
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post #26 of 27 Old 12-01-2019, 11:43 AM
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Originally Posted by JdgDReDD View Post
its exactly what i was saying except with different terminology. EXACTLY Dom. and if you were as smart as you think you are and try to project, you would have realized it at the get go. and if you still don't realize it or won't admit it, thats just pathetic. I guess its only true when tom says it not when i say it .
None of us, IMHO, has a patent on truth, jdgDReDD!

As to different ignition system terminology, Shakespeare said, "A rose by any other name would smell as sweet." If Shakespeare rode a motorcycle, he'd say the same (or words to the effect) about ignition system components.


“You better put down that gun. You got two ways to go, put it down or use it. Even if you tie me, you’re gonna be dead.” "John Russell" (Paul Newman), Hombre
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post #27 of 27 Old 12-01-2019, 11:43 AM
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Is there an ignore button on this sight?
There is. In the upper right-hand corner of this page there is a link "User CP". Click on that. On your control panel, about halfway down on the left, there is a link "Edit Ignore List". Click on that and enter his username.

We don't ban people for drunk-posting, exhibiting excessive hubris, or posting huge quantities of misinformation. The problem in this instance is that all these categories are over the top and would simply require too much effort to counter. Thus, we have to rely on the good sense of the rest of the membership to take it all in with a grain of salt. Or, perhaps, a saltlick.

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“Some days I feel like playing it smooth. Some days I feel like playing it like a waffle iron.” -Philip Marlowe

“'Why' and 'How' are words so important they cannot be too often used.” -Napoleon Bonaparte

Sting like a butterfly.
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