...we have no idea of the electronics on a Motorcycle...
Ahhh, makes sense (actually, not very sensible). Then he would leave the output that normally drives the coil floating, not grounded.However, if this has an electronically controlled exhaust valve, then the operation of that valve must be properly timed with the ignition advance curve, or there will be no advantage to adding a 2nd CDI. In fact, it would more than likely cause the bike to run slower. 2-stroke rev limiters work by retarding the ignition slightly at an RPM long after the engine can make maximum power anyway. There is just no sense in defeating it.My son is a national pro level off-road rider. We have never even dreamed of trying to defeat the rev limiter on his bikes, and yes, he does ride 2-strokes. Not even the top Supercross riders ride without rev limiters. They even ride 4-strokes where the rev-limiter just cut's off the ignition altogether and still they are not tempted to defeat it.I can't see any reason to go that route, not even on a street bike or a road racer.This seems like an ill-advised modification if that is what the OP is trying to do.
I think it would work, but not very well, especially in the mid-range. It is not likely that the advance curve will match the engine, exhaust, carb, or the power valves. 2-strokes are a tuned system. You can't just make dramatic changes in one area and not make matching changes elsewhere.Have you looked into other alternatives like using a YZ125 or KTM 125 ignition, or is the TDR produced in other countries with more power? What about the UK version?
2 strokes doesn't need advance curve, most of them have fixed ignition like my Yamaha wheri it's 17 degrees BTC.
So my biggest concern is can I just leave wire which goes to ignition coil from original cdi unconnected and would that burn CDI, because cdi is very expensive I didn't wanted to try this before asking somebody who knows something about that!
Quote from: jocoj100 on Apr 14, 2013, 04:15 pm2 strokes doesn't need advance curve, most of them have fixed ignition like my Yamaha wheri it's 17 degrees BTC.No true, not true at all. Not since about 1980. All my Husqvarnas and KTMs have advance curves. Every 2T bike I've owned since my 1981 IT250 has had an advance curve. You are very much misinformed my friend.Quote from: jocoj100 on Apr 14, 2013, 04:15 pmSo my biggest concern is can I just leave wire which goes to ignition coil from original cdi unconnected and would that burn CDI, because cdi is very expensive I didn't wanted to try this before asking somebody who knows something about that!You can do it, but it's not going to work very well. It will not burn the CDI but it will run like maird.My advice is that you DO NOT do this.
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