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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#F1245 45FS REGULATOR ADJUSTING SCREWYS Engines and Parts
YS Engines #F1245 45FS REGULATOR ADJUSTING SCREW
$3.85
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#4629B 45FS NEEDLE SOCKETYS Engines and Parts
YS Engines #4629B 45FS NEEDLE SOCKET
$15.35
Only 1 unit left
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#F2055 140DZ PUMP VALVE SPRINGYS Engines and Parts
YS Engines #F2055 140DZ PUMP VALVE SPRING
$4.85
In stock, 6 units
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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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#G2073 115S REGULATOR SPACERYS Engines and Parts
YS Engines #G2073 115S REGULATOR SPACER
$4.35
Only 5 units left
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#G2060 115S NEEDLE VALVE SETYS Engines and Parts
YS Engines #G2060 115S NEEDLE VALVE SET
$38.45
Only 3 units left
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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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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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#F8089 170DZ TUBE HOLDERYS Engines and Parts
YS Engines #F8089 170DZ TUBE HOLDER
$9.63
Only 1 unit left
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YS Engines and Parts
YS Engines #F8056 170DZ PUMP VALVE SPRING
$4.50
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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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#F7376 FZ110S STAY UPPERYS Engines and Parts
YS Engines #F7376 FZ110S STAY UPPER
$9.85
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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#F3170 63S PLUNGER SPRINGYS Engines and Parts
YS Engines #F3170 63S PLUNGER SPRING
$6.55
In stock, 11 units
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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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#F2058 140DZ FUEL PUMP GASKETYS Engines and Parts
YS Engines #F2058 140DZ FUEL PUMP GASKET
$4.85
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YS Engines and Parts
YS Engines #S8138A ST2 REGULATOR ASSEMBLY
$69.25
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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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#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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#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
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YS Engines and Parts
YS Engines #F3168A 63S REGULATOR ASSEMBLY
$60.45
Only 4 units left
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#F3169 63S REGULATOR ADJ SCREW O-RINGYS Engines and Parts
YS Engines #F3169 63S REGULATOR ADJ SCREW O-RING
$4.35
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#S4125 80 NEEDLE VALVEYS Engines and Parts
YS Engines #S4125 80 NEEDLE VALVE
$18.45
Only 3 units left
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#S4125S 80 NEEDLE VALVE ASSEMBLYYS Engines and Parts
YS Engines #S4125S 80 NEEDLE VALVE ASSEMBLY
$36.25
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#F5158S 53FZ NEEDLE VALVE ASSEMBLYYS Engines and Parts
YS Engines #F5158S 53FZ NEEDLE VALVE ASSEMBLY
$38.25
Only 4 units left
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#F9166A 91AC REGULATOR ASSEMBLYYS Engines and Parts
YS Engines #F9166A 91AC REGULATOR ASSEMBLY
$57.15
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YS Engines and Parts
YS Engines #R6133A 61LS REGULATOR ASSEMBLY
$65.95
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#F1244 120FS REGULATOR BODYYS Engines and Parts
YS Engines #F1244 120FS REGULATOR BODY
$43.95
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TZ240 Needle plate screws
YS Engines TZ240 Needle plate screws
$4.00
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