you replaced the primer cap ? if its non genuine use the black , they seem to work in almost anything and yes there are different needles some fit , most dont but im sure another member will say something too , here i have luck MOST times just using black and yeah did it too me last week here the machine was allgood but left it a while and same thing happened ran until it used the chamber of fuel then wait .......start and stop again . changed it to a black and gave it back to them running sweeeeeet .
love a challenge huh
