there is a whole list of things in this post that are screaming (WRONG) !!!! if this guy is a mech. and you took him a vehicle to rebuild the motor and it doesn't run right ....it's on him . If he doesn't know if O2 sensors are needed I wouldn't let this dumb ass work on daughters bike .
You have to run the O2 sensor , they sell weld on bungs at Jegs and Summit that will work . Start there and see if it helps the running ( It will I promise) . I hope you didn't pay this guy much.
|