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Mikuni Pocket Tuner (Rejetting Aid) 1-036

Mikuni Pocket Tuner (Rejetting Aid) for Temperature - Altitude Adjustment Useful for Tuning or Riding in High Altitude 

Used to determine required jetting changes in carburetors due to temperature and altitude.

For single and multiple carburetion on two stroke, and four stroke, engines.
Includes guide for determining rich or lean conditions.
A must for riders and mechanics that demand maximum performance!
Allows for precise adjustment of the main jet re-jetting. to temperature, and ambiance height.