DT125R ARCHIVE

its the sign of a straight through exaust with more fuel than can burn, have you checked which reeds you have?

by the way i like the flames that looks class lol

-- Edited by DTR125CRAZY on Friday 21st of August 2009 09:51:56 PM

Ive got standard reeds as far as im aware, i don have some fibre reeds which i was going to fit but havent got around to doing it yet.

Theres no way im putting the 240 back in its fouled 2 plugs one of which in the middle of london(park lane) on a sunday and we had to wait 4 hours for a friend to drop of a spare spark plug he had, the only way we knew it was the plug that was playing up is because my mate has a dtx and we took the plug from his and put it in mine temporarily to test it was the plug which was at fault his was a nice tan colour when we put it in but not even 10 seconds later it came out black!

i get misfire at the top revs in really wet weather. the plug lead arc`s to the top of the metal rad output pipe. The fist time it did it, went over to my m8`s and thought it was the plug. That was black n fouled. Did`nt realise at the time it was the lead arc`ing out.

I changed the plug too. it cured in the short term till it pissed down again. Another note, the standard plug is the NGK BR9ES, i use the B9ES, the difference is a resisor in the plug it self.

For reasons unknown, the DTR coil likes to blow the resistor on many DT`s. I think its the coil as it degrades , as it gets old, does some damage to the plug, by either over voltage, or violent voltage spike, taking out the resistor.

Better of buying a new race coil, or change to a B9ES plug. I have changed to this plug and now done just over 1200 miles on it with out any hassles.

Also bought a weather proof plug cap too..

Your misfire is almost identical.