Welcome to Our Parts Catalogue

All available documentation is provided below for your reference

If the part you need is not in stock, please go to the product page and click "Email me when available" to get a notification when it's back in stock. This helps us determine what to order with the factory!

If you have a digital copy of a YS manual, please send it to us and help build the best collection of YS information on the web. Thank you!

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Pump, Regulator, and Fuel Components

185 products

Showing 37 - 72 of 185 products

Showing 37 - 72 of 185 products
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#R6129 61LS NEEDLE SOCKET O RINGYS Engines and Parts
YS Engines #R6129 61LS NEEDLE SOCKET O RING
$3.25
Only 5 units left
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#4629B 45FS NEEDLE SOCKETYS Engines and Parts
YS Engines #4629B 45FS NEEDLE SOCKET
$15.35
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#E5092 TUBE CYS Engines and Parts
YS Engines #E5092 TUBE C
$4.35
In stock, 13 units
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#F2054 140DZ PUMP VALVEYS Engines and Parts
YS Engines #F2054 140DZ PUMP VALVE
$5.45
Only 3 units left
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YS Engines and Parts
YS Engines #S1041 50ST REGULATOR O RING
$3.85
Only 4 units left
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#F1245 45FS REGULATOR ADJUSTING SCREWYS Engines and Parts
YS Engines #F1245 45FS REGULATOR ADJUSTING SCREW
$3.85
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#F8089 170DZ TUBE HOLDERYS Engines and Parts
YS Engines #F8089 170DZ TUBE HOLDER
$9.63
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#F7376 FZ110S STAY UPPERYS Engines and Parts
YS Engines #F7376 FZ110S STAY UPPER
$9.85
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#F2058 140DZ FUEL PUMP GASKETYS Engines and Parts
YS Engines #F2058 140DZ FUEL PUMP GASKET
$4.85
Only 4 units left
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#R1034 60SR HIGH NEEDLE O RINGYS Engines and Parts
YS Engines #R1034 60SR HIGH NEEDLE O RING
$4.35
Only 5 units left
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#G1060 70FZ-S NEEDLE SOCKET O-RING SETYS Engines and Parts
YS Engines #G1060 70FZ-S NEEDLE SOCKET O-RING SET
$5.45
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#S1030 50ST NEEDLE SOCKET O RINGYS Engines and Parts
YS Engines #S1030 50ST NEEDLE SOCKET O RING
$3.85
In stock, 20 units
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#S8133 ST2 LOW SPEED NEEDLE O RINGYS Engines and Parts
YS Engines #S8133 ST2 LOW SPEED NEEDLE O RING
$3.85
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#F5158S 53FZ NEEDLE VALVE ASSEMBLYYS Engines and Parts
YS Engines #F5158S 53FZ NEEDLE VALVE ASSEMBLY
$38.25
Only 3 units left
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YS Engines and Parts
YS Engines #F9157 91AC LOW SPEED NEEDLE O RING
$2.75
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YS Engines and Parts
YS Engines #R6139 61LS REGULATOR SPRING
$3.85
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#E4045A YS185 PUMP ASSEMBLYYS Engines and Parts
YS Engines #E4045A YS185 PUMP ASSEMBLY
$164.95
Only 2 units left
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YS Engines and Parts
YS Engines #F8056 170DZ PUMP VALVE SPRING
$4.50
Only 3 units left
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#F8054S 175DZ PUMP BODY W/ PLUNGERYS Engines and Parts
YS Engines #F8054S 175DZ PUMP BODY W/ PLUNGER
$71.45
Only 1 unit left
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#S1049 50ST PLUNGERYS Engines and Parts
YS Engines #S1049 50ST PLUNGER
$7.65
Only 4 units left
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YS Engines and Parts
YS Engines #F2059 140DZ FUEL PUMP STAY SET
$7.65
In stock, 8 units
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#F2187 140DZ FUEL PUMP INSULATORYS Engines and Parts
YS Engines #F2187 140DZ FUEL PUMP INSULATOR
$10.95
In stock, 9 units
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YS Engines and Parts
YS Engines #F2186 140DZ FUEL PUMP PLUNGER
$9.85
Only 5 units left
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YS Engines and Parts
YS Engines #F2132 140DZ INSULATOR
$29.50
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YS Engines and Parts
YS Engines #S8138A ST2 REGULATOR ASSEMBLY
$69.25
Only 5 units left
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#G7162 70DZ BREAK IN NEEDLE ORINGYS Engines and Parts
YS Engines #G7162 70DZ BREAK IN NEEDLE ORING
$3.25
Only 3 units left
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#R1033 60SR HIGH NEEDLEYS Engines and Parts
YS Engines #R1033 60SR HIGH NEEDLE
$17.55
Only 5 units left
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YS Engines and Parts
YS Engines #G1057S 70FZ-S NEEDLE VALVE SET
$36.25
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#G1059 70FZ-S NEEDLE SOCKETYS Engines and Parts
YS Engines #G1059 70FZ-S NEEDLE SOCKET
$18.65
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#S2050 56SR HIGH NEEDLE SOCKET O RINGYS Engines and Parts
YS Engines #S2050 56SR HIGH NEEDLE SOCKET O RING
$4.35
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YS Engines and Parts
YS Engines #F7368A FZ110S REGULATOR ASSEMBLY
$62.65
Only 1 unit left
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#S1044 50ST REGULATOR SET SCREWSYS Engines and Parts
YS Engines #S1044 50ST REGULATOR SET SCREWS
$3.85
Only 1 unit left
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#S1043 50ST REGULATOR SCREW O RINGSYS Engines and Parts
YS Engines #S1043 50ST REGULATOR SCREW O RINGS
$3.85
In stock, 15 units
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#S1040 50ST REGULATOR BODY A2YS Engines and Parts
YS Engines #S1040 50ST REGULATOR BODY A2
$27.45
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#S1027S 50ST NEEDLE VALVE SETYS Engines and Parts
YS Engines #S1027S 50ST NEEDLE VALVE SET
$31.85
Only 2 units left
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YS Engines and Parts
YS Engines #F3168A 63S REGULATOR ASSEMBLY
$60.45
Only 4 units left

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