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Home > Engines and Accessories > Engines > Y.S. Engines > Y.S. 91ST

Y.S. 91ST

VIPERHEAD FOR YS91 ENGINES DUAL PLUG Code: VIPERHEAD2YS Price: $117.75 MFG: OMI 4 IN STOCK Quantity in Basket: none	YS0200 - THROTTLE ARM WITH SCREW Code: YS0200 Price: $4.68 MFG: Y.S. ENGINES Sold out Quantity in Basket: none
YS0490 - PROP NUT - 61ST 61ST2 80ST 91ST 91SR 91SR3DS Code: YS0490 Price: $1.25 MFG: Y.S. ENGINES 2 IN STOCK Quantity in Basket: none	YS0700 - REAR BEARING - 91ST Code: YS0700 Price: $15.09 MFG: Y.S. ENGINES Sold out Quantity in Basket: none
YS1030 - WRIST PIN RETAINERS - 61ST 61ST2 80ST 91ST 91SR Code: YS1030 Price: $5.21 MFG: Y.S. ENGINES 1 IN STOCK Quantity in Basket: none	YS1050 - FRONT BEARING Code: YS1050 Price: $11.86 MFG: Y.S. ENGINES Sold out Quantity in Basket: none
YS1070 - BACK PLATE SCREWS - 61ST 61ST2 80ST 91ST 91SR 91SR3DS Code: YS1070 Price: $2.64 MFG: Y.S. ENGINES Sold out Quantity in Basket: none	YS1090 - THROTTLE BARREL RETAINER - 61ST 61ST2 80ST 91ST 91SR 91SR3DS Code: YS1090 Price: $2.58 MFG: Y.S. ENGINES 1 IN STOCK Quantity in Basket: none
YS1220 - DRIVE WASHER SPACER - 61ST 61ST2 80ST 91ST Code: YS1220 Price: $2.58 MFG: Y.S. ENGINES Sold out Quantity in Basket: none	YS1240 - SUB NEEDLE O RING - 61ST 61ST2 80ST 91ST Code: YS1240 Price: $1.25 MFG: Y.S. ENGINES Sold out Quantity in Basket: none
YS2385 - WRIST PIN - 61ST 61ST2 80ST 91ST 91SR 91SR3DS Code: YS2385 Price: $4.79 MFG: Y.S. ENGINES Sold out Quantity in Basket: none	YS2430 - REAR BEARING 61 - 91 Code: YS2430 Price: $14.66 MFG: Y.S. ENGINES 1 IN STOCK Quantity in Basket: none
YS2435 - CARBURETOR SCREWS - 61ST 61ST2 80ST 91ST 91SR 91SR3DS Code: YS2435 Price: $2.35 MFG: Y.S. ENGINES 3 IN STOCK Quantity in Basket: none	YS2445 - REGULATOR SUB PLATE - 61ST 91ST 91SR 91SR3DS Code: YS2445 Price: $8.95 MFG: Y.S. ENGINES 3 IN STOCK Quantity in Basket: none
YS2460 - DIAPHRAGM - All YS Heli engines. Click thumbnail for details. Code: YS2460 Price: $7.95 MFG: Y.S. ENGINES 9 IN STOCK Quantity in Basket: none	YS2480 - REGULATOR GASKET - 61ST 61ST2 80ST 91ST 91SR 91SR3DS Code: YS2480 Price: $2.46 MFG: Y.S. ENGINES Sold out Quantity in Basket: none
YS2510 - CHECK VALVE - 50ST 56SR 61ST 61ST2 80ST 91ST 91SR 91SR3DS Code: YS2510 Price: $8.75 MFG: Y.S. ENGINES 8 IN STOCK Quantity in Basket: none	YS2695 - NEEDLE O RING - 50ST 56SR 61ST2 80ST 91ST 91SR 91SR3DS Code: YS2695 Price: $2.92 MFG: Y.S. ENGINES 2 IN STOCK Quantity in Basket: none
YS2700 - NEEDLE SEAT - 61ST2 80ST 91ST 91SR 91SR3DS Code: YS2700 Price: $7.87 MFG: Y.S. ENGINES Sold out Quantity in Basket: none	YS2705 - NEEDLE SEAT O RING - 61ST2 80ST 91ST 91SR 91SR3DS Code: YS2705 Price: $2.92 MFG: Y.S. ENGINES 2 IN STOCK Quantity in Basket: none
YS2710 - NEEDLE DETENT - 50ST 56SR 61ST2 80ST 91ST 91SR 91SR3DS Code: YS2710 Price: $4.12 MFG: Y.S. ENGINES 2 IN STOCK Quantity in Basket: none	YS4150 - LOW SPEED NEEDLE O RING - 50ST 56SR 61ST2 80ST 91ST 91SR 91SR3DS Code: YS4150 Price: $2.71 MFG: Y.S. ENGINES 1 IN STOCK Quantity in Basket: none
YS4155 - REGULATOR ASSEMBLY - 61ST 61ST2 91ST 91SR 91SR3DS Code: YS4155 Price: $46.61 MFG: Y.S. ENGINES 1 IN STOCK Quantity in Basket: none	YS4160 - O RING SET - 61ST2 80ST 91ST Code: YS4160 Price: $5.41 MFG: Y.S. ENGINES 2 IN STOCK Quantity in Basket: none
YS4480 - NEEDLE VALVE ASSEMBLY - 80ST 91ST 91SR 91SR3DS Code: YS4480 Price: $28.95 MFG: Y.S. ENGINES 2 IN STOCK Quantity in Basket: none	YS4485 - NEEDLE VALVE - 80ST 91ST 91SR 91SR3DS Code: YS4485 Price: $10.79 MFG: Y.S. ENGINES 1 IN STOCK Quantity in Basket: none
YS4770 - CRANKCASE - 91ST Code: YS4770 Price: $103.71 MFG: Y.S. ENGINES Sold out Quantity in Basket: none	YS4775 - CYLINDER HEAD - 91ST Code: YS4775 Price: $42.90 MFG: Y.S. ENGINES 1 IN STOCK Quantity in Basket: none
YS4780 - HEAD GASKET - 91ST Code: YS4780 Price: $2.58 MFG: Y.S. ENGINES Sold out Quantity in Basket: none	YS4785 - HEAD SCREWS - 91ST 91SR 91SR3DS Code: YS4785 Price: $2.58 MFG: Y.S. ENGINES Sold out Quantity in Basket: none
YS4790 - CYLINDER LINER - 91ST Code: YS4790 Price: $60.39 MFG: Y.S. ENGINES Sold out Quantity in Basket: none	YS4795 - PISTON - 91ST Code: YS4795 Price: $35.40 MFG: Y.S. ENGINES 2 IN STOCK Quantity in Basket: none
YS4800 - PISTON RING 91ST Code: YS4800 Price: $19.13 MFG: Y.S. ENGINES 2 IN STOCK Quantity in Basket: none	YS4805 - CONNECTING ROD - 91ST 91SR 91SR3DS Code: YS4805 Price: $18.74 MFG: Y.S. ENGINES Sold out Quantity in Basket: none
YS4810 - CRANKSHAFT - 91ST Code: YS4810 Price: $52.90 MFG: Y.S. ENGINES 1 IN STOCK Quantity in Basket: none	YS4815 - BACK PLATE - 91ST Code: YS4815 Price: $7.51 MFG: Y.S. ENGINES 2 IN STOCK Quantity in Basket: none
YS4820 - BACK PLATE GASKET - 91ST Code: YS4820 Price: $2.58 MFG: Y.S. ENGINES 6 IN STOCK Quantity in Basket: none	YS4825 - CARBURETOR BODY - 91ST Code: YS4825 Price: $44.57 MFG: Y.S. ENGINES 2 IN STOCK Quantity in Basket: none
YS4830 - CARBURETOR GASKET - 91ST 91SR 91SR3DS Code: YS4830 Price: $3.10 MFG: Y.S. ENGINES 3 IN STOCK Quantity in Basket: none	YS4835 - THROTTLE BARREL - 91ST Code: YS4835 Price: $18.60 MFG: Y.S. ENGINES 1 IN STOCK Quantity in Basket: none
YS4840 - SEAL RING - 91ST Code: YS4840 Price: $3.29 MFG: Y.S. ENGINES Sold out Quantity in Basket: none	YS4845 - LOW SPEED NEEDLE - 50ST 56SR 91ST 91SR 91SR3DS Code: YS4845 Price: $10.25 MFG: Y.S. ENGINES 1 IN STOCK Quantity in Basket: none
YS4850 - CARBURETOR SUBPLATE.... - 91ST 91SR 91SR3DS Code: YS4850 Price: $15.62 MFG: Y.S. ENGINES 2 IN STOCK Quantity in Basket: none	YS4855 - GASKET SET - 91ST Code: YS4855 Price: $6.88 MFG: Y.S. ENGINES 3 IN STOCK Quantity in Basket: none
YS4860 - PISTON AND LINER SET - 91ST Code: YS4860 Price: $108.25 MFG: Y.S. ENGINES Sold out Quantity in Basket: none	YS4865 - CARBURETOR ASSEMBLY - 91ST Code: YS4865 Price: $114.62 MFG: Y.S. ENGINES 1 IN STOCK Quantity in Basket: none