Upppssss.... not even a hell of a lot of response :-o
Please, before I open up a brandnew thread on this, let me try to go on with THIS thread.
Might be helpful not only for me ;-)
I just tried to get a helping hand from members of a German XS400 forum, now waiting for some replies.
My problem/s is/are slightly different, but however, let's give us a try ;-)
Here we go, that's what I posted in that German forum:
Hello and good evening ! It's the weekend and bad weather for me, both of the existing strobes are causing problems, as well as poor throttle response due to a carburetor problem that has yet to be fixed. Without a garage, with a covered carport, it is no fun to fix the carburetor problems outside first in order to be able to determine the ignition values afterwards :-( Companies like IgniTech cannot be reached before Monday.
Therefore, and because I have not yet achieved the desired success by keyword search, not even in the other sources, I would like to ask you here whether someone can come up with the advance values of the not freely programmable IgniTech-TCI [/ u] ??? [/ b] At the time, it came from the Czech Republic without any further information and should have been universally suitable for 27 or 45 hp engines. It was used for the 45 hp version, and the 27 hp version actually also ensures a good run.
Now I would like to use one of the existing TCIs for a Honda CX500 because its Hitachi CDI was designed in a way too complicated. As long as it works, everything is fine, but as soon as one of the generator's high-voltage coils muck, it becomes unnecessarily expensive. The electronics are mostly intact, but without enough juice from the generator nothing goes clean anymore. ONE (of 2) broken coil means the replacement of the complete stator, although everything works fine in the 12-14V range! Until 1982 the CX used 4 + 2 pickups for 15 ° idle, advance ignition and maximum advance ignition. This is technically interesting, but stupid if the CDI is to calculate the advance ignition from the 6 pulses. Instead of purely mechanical by means of a centrifugal regulator (as used progress through stepping backwards, so to speak, Honda changed from 1982 on), i.e. electronically. But, although primitive enough for e-hobbyists, still 'repair-safe' cast in resin :-( Then you can also use a more complicated, but now cheaper electronics, like the TCIs, instead of a diode network.
There are statements in the network that say that the pulse generators of the DOHC models are decisive for the calculation of the advance ignition; this contradicts the majority of the statements that state that the spark advance is calculated exclusively by the TCI. Which statement is true? [/ B]
Since 2 functioning pulse generators from the Honda are sufficient, the conversion to the TCI is easy as long as you also take over the ignition coils that match the TCI, because there may be differences. This saves having to remove the motor, because only 4 cables are not required, if necessary 'load / ballast' should be used if one of the two high-voltage coils still produces a lot of oomph. If you want to keep the CX in its original condition, you have to go to the generator - and that does WORK! Unfortunately, it sits in such a way that the engine has to be out ... One tiny problem with the conversion is the pre-ignition/advance. You can do something with different idle speeds and ° before TDC, but the CX up to BJ 1981/82 comes to 40 ° early, the one from 1982 even up to 45 ° early. For the latter models, neither one nor the other of the 12E-TCIs should come into question, while the older models could definitely get along with the TDI12-07 or the IgniTech-TCI. At aliexpress I found alternative TCIs that can definitely replace the Hitachi TCIs if they are to be used in a 12E / 16M. Prices: from 37 USD including shipping to Germany to approx. 58 USD, sometimes 'even' from DENSO - if you should prefer so-called 'branded goods'. But you would like to use parts that you still have lying around ;-)
Someone with you who can help out quickly with the IgniTech TCI values? In any case, I wish everyone a nice rest weekend, Greetings from Germany,
Rolf
(OldieOnWheels)
P.S.: sorry for possibly wrong translation... ;-)