Recently, Somebody Somewhere wrote these words
> Hello members,
>
> We need your help, anyone who knows about ignition system in the
> motorcycle Honda V-450. My friend asked me to repair the electronic
> ignition system (CDI ?)card that burnt partially. It's look like the
> anti surge component ( like ceramic cap disk) blew out became melted
> black. Close to it, there is a heatsink that 3 components (power
> trans?) are bolted to. We do not unbolted yet to check the components.
> The card is slotted in a black plastic casing, dimension 27mm x 66mm x
> 90mm with printed ID KW9K 512K 5622, made by OKI Electric Industry
> Co.Ltd.japan I am trying to search on internet to find out the unit
> replacement but no source found yet. Anyone can help/ get idea ?
>
You won't buy it. Stop searching. Honda control the sale (at their
exorbitant prices of course). Scrapyards?
Voltages will go up to about 400V for transistorised ignitions and much
higher for CDI ignitions. (6kv?)
Transistorised ignitions use a single switch; the circuit will be
simpler (One side of the ignition coil to battery, other side to switch,
and the switch would go to ground. The capacitor will be ~2.2uF 400V
(1uF - 5uF 400V - I'm guessing 2.2). If the transistors are bipolar, use
BU 806s or similar. If you buy the capacitor for any motor car or bike,
they will be 1-5uF, 400V. TX ignitions can be a very simple unit, unless
they have gimmickry for treating the timing pulse.
A CDI (Capacitor discharge) usually has a little tx generating several
KV across a capacitor. One side of your HT coil goes to ground, and the
other side to the switch point. This pumps short (a few uS) pulses into
the coil giving a short series of sparks to simulate a longer one. Throw
this out, unless you know what you are doing. You will hardly have
access to parts that take 6 - 10KV, and it is a much more complicated unit.
When things are blown up & scorched, the part numbers are a little more
difficult to read. There will also be a HV & a LV section on this,
probably distinguishable by the spaces between pcb tracks.
--
With best Regards,
Declan Moriarty.
--
Author: Declan Moriarty
INET: [EMAIL PROTECTED]
Fat City Hosting, San Diego, California -- http://www.fatcity.com
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