Magneto getting demagnetized.

[lutchoj]

Hi! I have a 100cc 2 stroke bike and this year i've got a problem with the magneto. It's the thrid time that I change it because it got demagnetized. Wiring is ok, it's not touching anything when running, cdi is ok, apparentely everything is set-up fine. There is no grounding, I think.

Has anyone else ever had a problem like this? One fella who helped me to look for problems told me that he thinks cuz my bike is very heavy (I've made a lot of adaptations to carry grocery), when I'm running it's got too much potential energy and somehow (cuz i didnt understand what he was talking about) the magneto gets demagnetized. Does it make any sense to you? Thanks a lot for any help and attention.

 

[Andrew1234]

Hi! I have a 100cc 2 stroke bike and this year i've got a problem with the magneto. It's the thrid time that I change it because it got demagnetized. Wiring is ok, it's not touching anything when running, cdi is ok, apparentely everything is set-up fine. There is no grounding, I think.

Has anyone else ever had a problem like this? One fella who helped me to look for problems told me that he thinks cuz my bike is very heavy (I've made a lot of adaptations to carry grocery), when I'm running it's got too much potential energy and somehow (cuz i didnt understand what he was talking about) the magneto gets demagnetized. Does it make any sense to you? Thanks a lot for any help and attention.

try switching your cdi

 

[lutchoj]

I already switech it. It's a new one. I'm thinking about buy a new starter kit, mine is a chinese classic no brand no nothing. lol. But anyway, itś really strange to see the magneto get demagnetized.

 

[brens_gbikes]

my theory, off the top of my head, maybe it's running too hot, heat can demagnetize magnets, although ferrite magnets demag at almost 500 degrees F, that's serious heat, maybe a crank bearing is bad, it's right on the other side of the case there, it might could get that hot thru friction