jrsunt Posted 1 hour ago Report Share Posted 1 hour ago It appears to be that the 4rt was the first bike with batteryless fuel injection and the test bed for everything else. With regards to your tests and findings, why is the high tick over so critical for the starting procedure? Quote Link to comment Share on other sites More sharing options...
honda_freak Posted 1 hour ago Report Share Posted 1 hour ago Hi Chris These are really good oscilloscope captures you have recorded here and will certainly benefit people when they have an ignition-related problem. I myself am also a little surprised at how it goes from wasted spark to non-wasted spark in such a short time horizon - I would not have believed this if it were not for your fine evidence here. I also find your note regarding an injection timing in the combustion stroke just after TDC a bit strange. But I can also confirm that this matches my captures of injection timing in the compression stroke TDC and which occurs 25 degrees after TDC. This is very important evidence of when and how the ignition system works on a Honda Montesa 4RT and other motorcycles / scooters with similar battery-less systems. It seems that there are quite a few secrets that need to be discovered. Just keep up the good work. Regards Honda Freak Quote Link to comment Share on other sites More sharing options...
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