Upper coolant hose bypass Yanmar YM, YMG, F,

Yanmar:
F13, F14, F15, F16, F17,
FB15, FB16,
FX16, FX17,
GT14,
YM14, YM126, YM142, YM146, YM155, YM169, YM180, YM186, YM187, YM220, YM226, YM250, YM276,
YM1301, YM1401, YM1502, YM1510, YM1601, YM1602, YM1610, YM1702, YM1720, YM1802, YM1810, YM1820, YM2001, YM2002, YM2010, YM2020, YM2202, YM2220, YM2301, YM2310, YM2402, YM2420,
YMG1800, YMG2000,

Yanmar Engine:
2T75, 2T90,
3T70, 3T72, 3T75, 3T80, 3T82, 3T84,