Martyn,
I hardly think that a 2 stroke 250 is cheaper to run as a klr 250.A 2 stroke runs a total loss lubrication system that needs expensive oil to run cleanly and reduce wear, and the 2 stroke engine would still use more fuel per cycle than a 4 stroke purely down to its twice as frequent power strokes and poor fuel efficiency.Also 2 stroke engines are far more susceptible to ring breakages and mandatory rebores than any 4 stroke engines.
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