Mikuni Carburetor Pocket Tuner Fmk-550-tnr For 2 & 4 Stroke Engines

Pocket size slide calculator used to determine required jetting changes in carburetors due to changes in temperature and altitude. For single and multiple carburetion on two stroke and four stroke engines. Comes with a guide for determining rich or lean conditions. Features: Pocket size slide calculator Helps determine required jetting changes in carburetors due to temperature and altitude change For single & multiple carburetion on 2 & 4 stroke engines Comes with a guide for determining rich or