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1972 SL125 ignition swap to be Battery-less

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I've tried the vintage forum on this but haven't found any soild facts, most was 2nd to third hand info. I have a 72 SL125 4 stroke, it must have the battery to fire and run. It runs fine but I would like to get away from the battery. The bike I have is used for mx only, so lights and anything else are removed. The XL125 model that came out after the SL in 74-75 did not have to have a battery to run. Can the ign's be swapped out? Some people remove certain coils off the SL stator but I'm trying to keep it simple. Thanks

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Remove the SL ignition, install the XL ignition and you are good to go. Swap the coils also because the SL is a DC coil and the XL is an AC coil.

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I've had a xl125 stator on hold, now I'll pick it up. Thanks for the help. John

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I had a sl100 I just put in a big capcitor and it worked just fine. I think it was 22,000mfd. Cost around $20. Make sure it is rated for at least 50 volts. That system does not have a voltage reg.

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