What makes 4 stroking on a cold start?

GoldenMotor.com

DanielMaia

New Member
Jun 24, 2009
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Portugal
Hi guys,

I am thinking about the 4 stroking on a cold start, on these china girls, because i see other 2 stroke bikes (yamaha DT, zundapp, casal, and much more) they run good, even in cold stars.

These china girls, with the motor cold, it 4 strokes a lot, the question is, why? bad quality?

When the motor is warmed up, it runs slighltly good, with no 4 strokes at all..