Interesting thread.
I've been importing the
Zeeltronic line and using and selling the units for the twin cylinder Yamaha. Found them reliable and easy to use and they passed rough duty road racing with flying colors.
Since I started road racing 9 nine years ago I have used the Dyna system that was originally built for the H2 but has not been available for a long time. I have 2 complete systems plus some spares and they have worked well for me but 9 years of road racing is hard duty and a failure in the near future is probably inevitable. Asked Borut about his triples specific systems recently and he told me he had just built a new 3 channel system integrated into one box but did not have and H2 to test it on. So I had him send a few over and spent last weekend installing and testing the system on my race H2. I started with stock H2
coils and pickups and got the system up and running fairly easily. Only ran into one minor issue.
Zeeltronic systems are designed so you input the maximum number of degrees mechanically available for timing advance. This is done by physically measuring the number of degrees of crank rotation from the pickup trigger point to TDC. This is abnormally small on the H2 compared to a typical Yamaha twin which is about 34 degrees. I was able to achieve 24 degrees maximum but it required the pickup timing plate and the pickups to be rotated clockwise to their maximum adjustment range to achieve that. Seemed odd so I reread the section of the H series shop manual on the ignition and remembered that most of the timing curve was in the thyristor and how quickly it reacted to the trigger at different rpms which jives with what I found.
That being said this should still work well with the H2 and the other triples this system can be used with (H1D, KH400, S3). On my race H2 I run a relatively flat curve that never exceeds 22 degrees and with the quality of today's gas that should be more than enough for a stock triple. The single box system is $350 and will fit the same space as the stock gold boxes. Plug and play with the stock
coils and pickups with many nice modern features such as tach, quick shifter, shift light and power jet outputs as well as a 3 stage rev limiter. You can program 2 timing curves into the unit that can be modified while the engine is running. You can also switch back and forth between the 2 curves while riding with a push button input.
Also nice is the fact the system does not use the Kawi high or
low speed coils so if you have a stator where those are not functional it can still be used.
Next step will be to install this system on a street H2 and H1 to confirm it works well with regular gas and standard Kawi wiring harnesses which I'll do shortly. Don't expect any problems with that.
You can check it out here if you're interested:
http://tinyurl.com/jwz8tt9
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