jackliveshere
Well-Known Member
i have an atomic pro x 125 which was running pretty poorly out of the box but i seem to have solved a few issues. adjusted valves, got a decent air filter, reemed out my main jet til my plug is running a tan colour (was white to start with) until i can chase up some new jets. have my needle on the richest setting though i know this needs correcting when i get a bigger jet and have my fuel mixture screw out 2 turns. the bike now runs well on a tight track and feels good but it lacks the bottom end punch of my mates which is a wheelie machine (but helps me slide through corners instead of battling to keep weight on the front wheel) and the main problem now is when i test it on a long straight it pulls well til u r revving it out in top gear close to maximum speed and then develops a splutter but if u back off and throttle it again it clears for a lil bit and then misses again. i was originally thinking it was struggling for fuel so i removed the fuel filter which didnt fix it and now i am not so sure especially as the plug is looking good. have cleaned carb many times (26mm mikuni) with no benefit. anyone got any ideas or had this problem before???
