125-200cc '13 CR125 fouling plugs and running sick ?

Hey everyone, so i love my cr125, it's a beast, it hauls and is great in single track. Anyway, yesterday i accidentally used the wrong oil (Fuchs, instead of Motorex Cross power fully synthetic 2t) to mix the petrol, at 33/1 like i usually do.

Anyway, i've never ever fouled a plug on this bike even when slow riding but yesterday i fouled my NGK Iridium plug, so i went to the bike shop and then replaced that with a cheapy's plug. About 5 minutes before i went home my bike just stopped.

This morning, i then started it to ride around my block before washing it, and then as soon as i got it on the pipe it stopped. I then washed it, and then started it, it started first kick, i let it just idle, then after a few minutes revved it, then let it iddle and it stopped like it did when i was riding the day before.

Is it possible that because i used the wrong oil that it could be the cause of fouling plugs? Maybe im using wrong fuel mixture, but i've always used 33/1 and never fouled with the other oil? What else could it be?...

Also, it has been blowing more smoke than usual so i don't know whether it's the different oil or something else.

~Elias

Different oils have different burn characteristics, so it is possible that the change to Fuchs oil is causing these issues.

Try draining your fuel tank and re-filling with the Motorex Cross Power mixture. Stick a fresh plug in the motor and see how it goes.