46,339 views
The Chinese pz 30 for a 250 cc engine is complete crap! I was convinced of this after six months of operation. It is crooked, slanted, has many easily broken parts, and most importantly, it is not a 30 at all. The diffuser has an oval shape with dimensions of 29 by 22, which does not allow the engine to breathe at speeds above average. Nibbi pe 28 settings: GTZ 140 XX jet 40 needle raised by 1 division quality screw unscrewed by 0.75 turns. These parameters may differ slightly even on identical engines, everything depends on the specific case and operating conditions. It is advisable to check the actual size of the jets, especially when using Chinese ones.