DT125R FORUM

@Lukas55 https://yamahaclub.com/forums/topic/16405-dt125r-de-restriction/ This might be helpful

@SpookDog Standard filter, Castrol oil. Its either the carb or a air leak somewhere.

@DTR-NSR On the workshop manual for my machine BR8ES is stock. I never measured the compression since i only got to drive with the kit for 1200km. From the graphs ive seen it does make more power than stock. So it might have a higher compression compared to stock. Will a diffrent plug make a big diffrence if the compression is higher?

@DTR-NSR Standard plug is BR8ES and i have a BR9ES on. I have no clue about octane, It says 100 on the pump, which is 100% pure here in Denmark, so i dont really know if its diffrent compared to your country.

@DTR-NSR Compared to standard, the sparkplug is in a lower heat range. So i doubt its due to the plug. 100% octane means that there is not biofuel in the gas mixture, its a 100% pure gas.

@SpookDog If you look at the second picture i posted, the plug is still in the cylinderhead

@DTR-NSR Dont know what plug it had in before, im running 100% octane.

I need a jet set for the main and idle jet. Does anyone know where i can buy those. Cant seem to find anything else than single jets for my bike

Thanks on before hand

@DTR-NSR Its a BR9ES plug i got on it now

@Peluri Yea i figured, do you know where i can get full jet sets for the carb? cant seem to find anything other than 1 jet for like 3 euros each.

But Thanks for the reply

Hi
So my 2005 DT 125 X just recently blew up. Im wondering if anyone has had the same problem?
Its derestricted, full gianelli exhaust system, Athena 125cc cylinderkit and 250 main jet.
Since theres a hole through the piston i know it got to hot. Does anyone know where to buy a Jet set for the carb? if that even is the problem or what else can cause it to become that hot, the sparkplug is a bit to cold compared to standard.

Picture Piston: https://imgur.com/a/fPwgJB1
Picture Topend: https://imgur.com/a/iILkhsJ

Thanks for help