Parts

List of YS engines Parts (Ordered by Part Number)

To order parts or service, please CALL us Monday – Friday between 9am – 5pm PST.

PART NUMBERDESCRIPTIONPRICE
YS010045FR LINER & PISTON SET$79.95
YS010545FR CRANKCASE$89.95
YS011045FS BACK PLATE GASKET$3.50
YS011545FS THROTTLE BODY$29.95
YS012045FS BACK PLATE$6.95
YS012545FS CRANKSHAFT$44.95
YS013045FS WRIST PIN$3.50
YS013545FS THROTTLE GASKET$3.50
YS014545FS GASKET SET$9.95
YS015045FS THROTTLE SET$89.95
YS015545FS CRANKCASE$89.95
YS016045FS THROTTLE BARREL$16.95
YS016545FS NEEDLE SOCKET$13.95
YS017045FS REGULATOR BODY$25.95
YS017545FS REGULATOR PLUNGER$3.50
YS0176120/140 REGULATOR PLUNGERn$3.50
YS0180120FS PLUNGER SPRING$3.50
YS018545FS CYLINDER HEAD SCREWS$3.50
YS019045FS NEEDLE VALVE SET$27.95
YS019545FS REGULATOR ADJUSTING SCREW$3.50
YS020045FS THROTTLE ARM/SCREW SET$6.95
YS020545FS BACK PLATE SCREWS$3.50
YS021045FS CYLINDER HEAD$24.95
YS021545FS CYLINDER HEAD GASKET$2.95
YS022045FS THROTTLE REG. MOUNT SCREWS$4.50
YS022545FS REAR BALL BEARING$19.95
YS023045FS LINER/PISTON$89.95
YS023545FS CON ROD$15.95
YS026560 REAR BEARING$22.95
YS037560FS THROTTLE ARM/SCREW SET$6.95
YS038060/45 THROTTLE BARREL RETAINER SCREW$2.95
YS038560/45 NEEDLE VALVE DETENT$3.50
YS039060/45 DRIVE WASHER SET$21.95
YS039560/45 THROTTLE STOP SCREW/SPRING SET$3.50
YS040060/45 PROP NUT$3.95
YS040560/45 CHECK VALVE$9.95
YS041060/45 DIAPHRAGM$3.50
YS041560/45 NEEDLE VALVE$9.95
YS042060/45 FUEL NIPPLE/WASHER SET$5.95
YS042560/45 PROP WASHER$2.95
YS043060/45 O RING SET$9.95
YS043560/45 WRIST PIN RETAINER$3.50
YS044060/45 FRONT BEARING$16.95
YS049060H PROP NUT$3.95
YS049545FS MUFFLER$29.95
YS0500120FS CRANKCASE$137.25
YS0505120FS VALVE COVER$17.95
YS0510120FS VALVE COVER GASKET$3.50
YS0515120FS VALVE COVER SCREW SET$3.50
YS0520120FS HEAD SHIM$3.50
YS0530120FS INTAKE VALVE$24.95
YS0535120FS EXHAUST VALVE$24.95
YS0540120FS VALVE SPRING SET$7.95
YS0545120FS SPRING RETAINER SET$7.95
YS0550120FS C RING SET$3.50
YS0555120FS ROCKER ARM SET$39.95
YS0560120FS TAPPET ADJUSTING SCREW$7.00
YS0565120FS TAPPET ADJUSTING LOCK NUT$3.95
YS0570120FS ROCKER ARM SHAFT$6.95
YS0575120FS ROCKER ARM SCREW$1.50
YS0580120FS E RING SET$3.50
YS0585120FS HEAD SCREWS$5.95
YS0591120FS CRANKSHAFT$90.25
YS0595120FS CYLINDER LINER$59.95
YS0600120FS PISTON$54.95
YS0605120FS WRIST PIN$9.95
YS0610120FS WRIST PIN RETAINER$7.95
YS0615120FS PISTON RING$21.95
YS0620120FS CONNECTING ROD$30.75
YS0623120FS BACK PLATE ASSEMBLY$83.75
YS0645120FS BACK PLATE GASKET$3.50
YS0650120FS BACK PLATE SCREWS$5.95
YS0655120FS CAM GEAR COVER$5.95
YS0660120FS CAM COVER O RING$2.50
YS0665120FS CAM COVER SCREW SET$2.50
YS0670120FS CAM GEAR$49.95
YS0675120FS CAM FOLLOWER$14.95
YS0680120FS PUSH ROD SET$15.95
YS0685120FS PUSH ROD COVER SET$9.95
YS0690120FS PUSH ROD COVER O RING$7.95
YS0692120FS DRIVE WASHER ASSEMBLY$37.95
YS0695120FS FRONT BEARING$18.95
YS0700120FS REAR BEARING$24.95
YS0701120FS REAR BEARING-A$25.95
YS0705120FS CAM GEAR BEARING SET$16.95
YS0710120FS FUEL NIPPLE SET$9.95
YS0715120FS REGULATOR BODY$39.95
YS0725120FS REGULATOR O RING$1.95
YS0730120FS DIAPHRAGM$3.50
YS0745120FS REGULATOR GASKET$3.50
YS0750120FS REGULATOR SCREW SET$4.95
YS0755120FS CARBURETOR BODY$59.95
YS0760120FS THROTTLE BARREL$39.95
YS0765120FS NEEDLE VALVE$13.95
YS0770120FS NEEDLE VALVE SOCKET$9.25
YS0775120FS NEEDLE SOCKET O RING$3.50
YS0785120FS THROTTLE STOP SCREW$2.95
YS0790120FS THROTTLE STOP SPRING$2.95
YS0810120FS CARBURETOR GASKET$3.50
YS0815120FS DRIVE WASHER$19.95
YS0820120FS SHAFT KEY$3.50
YS0825120FS PROPELLER WASHER$4.75
YS0830120FS PROPELLER NUT SET$8.95
YS0835120FS INTAKE PIPE$15.95
YS0840120FS INTAKE PIPE O RING$5.95
YS0845120FS EXHAUST PIPE$15.95
YS0850120FS EXHAUST PIPE LOCK NUT$7.95
YS0855120FS VALVE COVER ASSEMBLY$19.95
YS0860120FS ROCKER ARM ASSEMBLY$52.95
YS0865120FS CAM GEAR COVER ASSEMBLY$9.95
YS0870120FS CARBURETOR ASSEMBLY$155.95
YS0875120FS NEEDLE VALVE ASSEMBLY$29.50
YS0880120FS THROTTLE STOP ASSEMBLY$3.50
YS0885120FS DRIVE WASHER SET$22.95
YS0895120FS EXHAUST PIPE ASSEMBLY$21.95
YS0900120FS GASKET SET$15.95
YS0905120FS O RING SET$19.95
YS100061LS REAR EXHAUST CRANKCASE$150.75
YS100561LS CYLINDER HEAD$49.95
YS101061LS HEAD SHIM$2.95
YS101561LS HEAD SCREWS$3.50
YS102061LS REAR EXHAUST PISTON & LINER$147.00
YS102561LS WRIST PIN$7.95
YS103061LS WRIST PIN RETAINER$7.95
YS103561LS CON ROD$23.95
YS104061LS CRANKSHAFT$54.95
YS104561LS REAR BEARING$28.25
YS105061LS FRONT BEARING$18.95
YS105561LS KEY WAY$3.50
YS106061LS BACK PLATE$11.95
YS106161LS BACK PLATE-H$8.75
YS106561LS BACK PLATE GASKET$3.50
YS107061LS BACK PLATE SCREWS$3.50
YS107561LS THROTTLE BODY$49.95
YS108061LS THROTTLE BODY GASKET$3.50
YS108561LS THROTTLE BARREL$24.95
YS109061LS THROTTLE BARREL RETAINER$3.50
YS109561LS THROTTLE STOP SCREW$2.95
YS110061LS NEEDLE VALVE$13.95
YS110561LS NEEDLE SOCKET$9.25
YS111061LS NEEDLE SOCKET O RING$2.95
YS111561LS NEEDLE DETENT$3.50
YS112061LS REGULATOR BODY$44.95
YS112561LS REGULATOR GASKET$3.50
YS113061LS DIAPHRAGM$3.50
YS113561LS REGULATOR ADJUSTING SCREW$3.50
YS114061LS REGULATOR SCREW$2.95
YS114561LS PLUNGER$4.95
YS115061LS REGULATOR SPRING$3.50
YS115561LS REGULATOR MOUNTING SCREW$3.50
YS116061LS SIDE EXHAUST CRANKCASE$150.75
YS116561LS SIDE PISTON & LINER$147.00
YS117061LS NEEDLE VALVE ASSEMBLY$29.25
YS117561LS O RING SET$5.95
YS118061LS REGULATOR ASSEMBLY$59.95
YS118561LS CARBURETOR ASSEMBLY$102.75
YS119061LS GASKET SET$11.95
YS1195YS FUEL FILTER$5.95
YS120061LS PISTON LINER$77.25
YS120561LS PISTON REAR EXHAUST$43.25
YS121061LS PISTON RING$16.95
YS121561LS CRANKSHAFT$52.50
YS122061LS DRIVE WASHER SPACER$3.50
YS122561LS THROTTLE BODY$52.50
YS123061LS THROTTLE BARREL$19.95
YS123561LS SUB NEEDLE$10.95
YS124061LS SUB NEEDLE O RING$2.50
YS124561LS REGULATOR ADJUSTING SCREW$3.50
YS125061LS PISTON SIDE EXHAUST$43.25
YS126061LS O RING SET$7.95
YS126561LS PISTON & LINER REAR$131.25
YS127061LS PISTON & LINER SIDE$131.25
YS127561LS THROTTLE STOP SPRING$2.79
YS130061AR CRANKCASE$138.95
YS131061AR CYLINDER HEAD$50.95
YS132061AR PISTON & LINER$123.50
YS133061AR CRANKSHAFT$56.95
YS136061AR CRANKSHAFT RING$30.95
YS137061AR OIL PLUG$3.10
YS1400120AC CRANKCASE$144.95
YS1420120AC CRANKSHAFT$79.25
YS1430120AC PISTON$50.95
YS1440120AC BACK PLATE ASSEMBLY$87.95
YS1450120AC CARBURETOR BODY$55.50
YS1460120AC THROTTLE BARREL$20.95
YS1470120AC CRANKSHAFT RINGS$44.95
YS1480120AC AIR CHAMBER$134.25
YS1485120AC AIR CHAMBER GASKET$7.95
YS1490120AC AIR CHAMBER BRACKET$4.75
YS1500120AC BRACKET SCREW$4.75
YS1510120AC AIR CHAMBER NIPPLE$3.10
YS1520120AC CHECK VALVE BRACKET$6.25
YS1530120AC BRACKET SCREW$1.50
YS1540120AC WRIST PIN PLUG$5.95
YS1550120AC CARBURETOR ASSEMBLY$149.75
YS157091AC CRANKCASE$42.95
YS157191AC NEW CRANKCASE$59.95
YS158091AC CYLINDER ASSEMBLY$114.50
YS158191AC NEW CYLINDER HEAD ASSEMBLY$115.50
YS159091AC INTAKE VALVE$21.95
YS160091AC EXHAUST VALVE$19.95
YS161091AC HEAD GASKET$3.50
YS161191AC NEW CYLINDER HEAD GASKET$5.95
YS162091AC CYLINDER LINER$37.25
YS162191AC NEW CYLINDER LINER$54.95
YS163091AC HEAD CREWS$5.95
YS164091AC VALVE COVER$14.95
YS165091AC VALVE COVER GASKET$3.50
YS166091AC VALVE COVER SCREWS$3.50
YS167091AC AIR CHAMBER$15.95
YS168091AC AIR CHAMBER GASKET$3.50
YS169091AC AIR CHAMBER SCREWS$4.95
YS170091AC AIR CHAMBER O RING$2.50
YS171091AC CRANKSHAFT$55.95
YS172091AC REAR BEARING$24.95
YS173091AC FRONT OIL SEAL$10.95
YS174091AC DRIVE WASHER$15.95
YS175091AC KEY WAY$3.50
YS176091AC PISTON$49.95
YS177091AC PISTON RING$19.95
YS178091AC WRIST PIN$9.95
YS179091AC ROCKER ARM SET$34.95
YS180091AC ROCKER ARM SHAFT$9.95
YS181091AC ROCKER ARM SCREW$2.50
YS182091AC CAM GEAR COVER$7.95
YS183091AC CAM COVER O RING$2.50
YS184091AC CAM COVER SCREWS$3.50
YS185091AC PUSH RODS$7.95
YS186091AC PUSH ROD COVERS$9.95
YS187091AC CON ROD$25.95
YS188091AC BACK PLATE$34.50
YS189091AC DISK VALVE$18.95
YS190091AC DISK VALVE PIN$5.75
YS191091AC DISK VALVE PIN RETAINER$2.95
YS192091AC DISK VALVE PIN E RING$2.50
YS193091AC BACK PLATE GASKET$2.95
YS194091AC BACK PLATE SCREWS$5.95
YS195091AC CARBURETOR BODY$49.95
YS196091AC THROTTLE BARREL$28.95
YS197091AC CARBURETOR GASKET$3.50
YS199091AC REGULATOR BODY$39.95
YS200091AC DIAPHRAGM$3.50
YS201091AC MUFFLER$22.95
YS202091AC GASKET SET$14.95
YS203091AC SPRING RETAINER SET$7.95
YS204091AC VALVE SPRING RETAINER CLIP$7.95
YS205091AC LOW SPEED NEEDLE$10.95
YS206091AC LOW SPEED NEEDLE O RING$2.50
YS207091AC THROTTLE BARREL SEAL$3.50
YS208091AC CARBURETOR SCREWS$3.50
YS209091AC O RING SET$18.95
YS210091AC BACK PLATE ASSEMBLY$65.95
YS211091AC CARBURETOR ASSEMBLY$103.25
YS212091AC REGULATOR ASSEMBLY$51.95
YS212591ACH CRANKSHAFT$54.95
YS213091ACH THROTTLE BARREL$24.75
YS213591ACH REGULATOR SCREW$5.95
YS214091ACH REGULATOR PLATE$18.95
YS214591ACH CARBURETOR ASSEMBLY$97.95
YS215091ACH GASKET SET$14.95
YS2152120SC CRANKCASE$149.95
YS2155120SC CYLINDER HEAD$89.95
YS2160120SC INTAKE VALVE$24.95
YS2165120SC EXHAUST VALVE$25.95
YS2170120SC VALVE SPRING SET$9.95
YS2175120SC SPRING RETAINER SET$9.95
YS2180120SC VALVE SPRING CLIP$9.95
YS2185120SC CRANKSHAFT$84.95
YS2190120SC CRANKSHAFT RING$29.95
YS2195120SC PISTON$54.95
YS2200120SC CON ROD$34.95
YS2205120SC BACK PLATE$43.25
YS2210120SC DISC VALVE$21.50
YS2215120SC FRONT DISC RETAINER$4.25
YS2220120SC REAR DISC RETAINER$4.25
YS2225120SC RETAINER SCREW$3.50
YS2230120SC CAM GEAR COVER$6.95
YS2235120SC CAM COVER SCREWS$3.95
YS2240120SC FRONT OIL SEAL$11.95
YS2245120SC CARBURETOR BODY$36.00
YS2250120SC THROTTLE BARREL$25.95
YS2255120SC THROTTLE BARREL SEAL$5.95
YS2260120SC CARBURETOR GASKET$3.50
YS2265120SC DRIVE WASHER$17.25
YS2270120SC PROPELLER WASHER$3.50
YS2275120SC REGULATOR BALLAST$4.25
YS2280120SC GASKET SET$14.95
YS2285120SC O RING SET$21.95
YS2290120SC CARBURETOR ASSEMBLY$116.95
YS2295120SC BACK PLATE ASSEMBLY$89.95
YS2300120SC CYLINDER HEAD ASSEMBLY$139.95
YS2305120NC CYLINDER HEAD$79.95
YS2310120NC CRANKSHAFT$79.95
YS2315120NC CARBURETOR BODY$44.95
YS2320120NC THROTTLE BARREL$29.95
YS2325120NC MUFFLER$22.95
YS2335120NC EXHAUST PIPE$8.75
YS2340120NC CYLINDER HEAD ASSEMBLY$139.95
YS2345120NC CARBURETOR ASSEMBLY$93.95
YS2350120NC MUFFLER ASSEMBLY$34.50
YS2351120FZ CRANKCASE$149.95
YS235561ST CRANKCASE$108.95
YS236061ST CYLINDER HEAD$39.95
YS236561ST PISTON & LINER SET$113.50
YS237061ST CYLINDER LINER$66.50
YS237561ST PISTON$35.95
YS238061ST PISTON RING$21.95
YS238561ST WRIST PIN$7.95
YS239061ST CON ROD$24.95
YS239561ST CRANKSHAFT$48.75
YS240061ST BACK PLATE$8.75
YS240561ST CARBURETOR ASSEMBLY$117.50
YS241061ST CARBURETOR BODY$48.75
YS241561ST THROTTLE BARREL$18.75
YS242061ST HEAD SHIM$3.50
YS243061ST REAR BEARING$23.95
YS243561ST CARBURETOR SCREWS$3.50
YS244061ST CARBURETOR SUB PLATE$23.95
YS244561ST REGULATOR SUB PLATE$11.95
YS245061ST REGULATOR ASSEMBLY$51.50
YS245561ST-H REGULATOR SUB PLATE$18.75
YS246061ST DIAPHRAGM$7.95
YS248061ST REGULATOR GASKET$3.50
YS251061ST CHECK VALVE$10.95
YS251561ST GASKET SET$11.95
YS252061ST O RING SET$7.95
YS2600140FZ CRANKCASE$149.95
YS2605140FZ HEAD SHIM$3.50
YS2610140FZ CYLINDER HEAD$94.95
YS2615140FZ HEAD BOLTS$4.50
YS2620140FZ CRANKSHAFT$84.95
YS2625140FZ CYLINDER LINER$54.95
YS2630140FZ PISTON$78.50
YS2635140FZ WRIST PIN RETAINER SET$8.25
YS2640140FZ PISTON RING$24.95
YS2645140FZ CON ROD$39.95
YS2650140FZ BACK PLATE$81.95
YS2655140FZ BACK PLATE SCREWS$5.95
YS2660140FZ CAM GEAR$54.95
YS2665140FZ PUSH ROD SET$16.95
YS2670140FZ PUSH ROD COVERS$13.95
YS2675140FZ FUEL NIPPLES$9.95
YS2680140FZ CARBURETOR BODY$49.95
YS2685140FZ THROTTLE BARREL$39.95
YS2690140FZ NEEDLE VALVE$14.95
YS2695140FZ NEEDLE O RING$3.50
YS2700140FZ NEEDLE SEAT$11.95
YS2705140FZ NEEDLE SEAT O RING$3.95
YS2710140FZ NEEDLE DETENT$5.50
YS2715140FZ DRIVE WASHER$21.95
YS2720140FZ DRIVE WASHER RETAINER$5.95
YS2723140FZ INTAKE PIPE$15.95
YS2725140FZ GASKET SET$14.95
YS2730140FZ O RING SET$22.95
YS2735140FZ CARBURETOR ASSEMBLY$126.95
YS2740140FZ NEEDLE VALVE ASSEMBLY$33.95
YS2745140FZ BACK PLATE ASSEMBLY$89.95
YS2750140FZ HEAD ASSEMBLY$144.95
YS280053FZ CRANKCASE$49.95
YS280553FZ CYLINDER HEAD ASSEMBLY$79.95
YS281053FZ INTAKE VALVE$18.95
YS281553FZ EXHAUST VALVE$19.95
YS282053FZ VALVE SPRING SET$7.95
YS282553FZ VALVE SPRING RETAINER SET$5.75
YS283053FZ HEAD SEAL$5.95
YS284053FZ HEAD BOLT SET$5.95
YS284553FZ VALVE COVER$12.95
YS285053FZ VALVE GASKET$3.50
YS285553FZ VALVE SCREWS$3.50
YS286053FZ INTAKE PIPE$14.95
YS286553FZ INTAKE PIPE O RING$3.50
YS287053FZ CRANKSHAFT$54.95
YS287553FZ REAR BEARING$18.95
YS288053FZ FRONT BEARING$15.95
YS288553FZ FRONT SEAL$11.95
YS289053FZ DRIVE WASHER$16.95
YS289553FZ DRIVE WASHER RETAINER$5.95
YS290053FZ PROP WASHER$3.50
YS290553FZ PROP NUT SET$5.95
YS291053FZ PISTON$41.95
YS291553FZ PISTON RING$19.95
YS292053FZ WRIST PIN$9.95
YS292553FZ WRIST PIN RETAINER$7.95
YS293053FZ ROCKER ARM SET$29.95
YS293553FZ ROCKER ARM SHAFT$7.95
YS294053FZ SHAFT SCREW$3.50
YS294553FZ CAM GEAR$47.95
YS295053FZ CAM COVER$7.95
YS295553FZ COVER O RING$2.50
YS296053FZ CAM BEARING SET$19.95
YS296553FZ CAM FOLLOWER SET$14.95
YS297053FZ PUSH ROD SET$7.95
YS297553FZ PUSH ROD COVER SET$8.95
YS298053FZ PUSH ROD COVER O RING$5.50
YS298553FZ CON ROD$23.95
YS299053FZ BACK PLATE$29.95
YS299553FZ DISC VALVE$15.25
YS2GP2 CYCLE HELI GLOW PLUG$13.50
YS300053FZ DISC VALVE PIN$5.75
YS300553FZ BACK PLATE GASKET$3.50
YS301053FZ BACK PLATE SCREWS$3.50
YS301553FZ CARBURETOR BODY$39.95
YS302053FZ THROTTLE BARREL$24.95
YS302553FZ THROTTLE BARREL SEAL$6.95
YS303053FZ NEEDLE VALVE$15.95
YS303553FZ FUEL NIPPLE$2.50
YS304053FZ CARBURETOR GASKET$3.50
YS304553FZ CARBURETOR SCREWS$4.50
YS305053FZ REGULATOR BODY$39.95
YS305553FZ DIAPHRAGM$4.50
YS305753FZ REGULATOR SPRING$4.95
YS306053FZ REGULATOR SCREWS$3.50
YS306553FZ MUFFLER$27.95
YS307053FZ HEADER PIPE$7.95
YS307553FZ HEADER LOCK NUT$5.95
YS308053FZ GASKET SET$9.95
YS308553FZ O RING SET$16.95
YS309053FZ NEEDLE VALVE ASSEMBLY$32.95
YS309553FZ MUFFLER ASSEMBLY$35.95
YS400053FZ BACK PLATE ASSEMBLY$47.95
YS400553FZ CYLINDER HEAD ASSEMBLY$104.95
YS4010ST2 LOW SPEED NEEDLE$9.95
YS4015ST2 LOW SPEED O RING$2.50
YS4105ST2 CRANKCASE$119.95
YS4110ST2 CYLINDER LINER$74.95
YS4115ST2 PISTON$44.95
YS4120ST2 CON ROD$26.95
YS4125ST2 CRANKSHAFT$64.95
YS4130ST2 CARBURETOR BODY$59.95
YS4135ST2 THROTTLE BARREL$26.95
YS4140ST2 HIGH SPEED NEEDLE$13.95
YS4145ST2 LOW SPEED NEEDLE$14.95
YS4150ST2 LOW SPEED NEEDLE O RING$3.50
YS4155ST2 REGULATOR ASSEMBLY$62.95
YS4160ST2 O RING SET$10.95
YS4165ST2 PISTON/RING/LINER SET$129.95
YS4170ST2 CARBURETOR ASSEMBLY$129.95
YS4200140L CRANKCASE$139.95
YS4205140L CRANKSHAFT$84.95
YS4210140L CARBURETOR BODY$49.95
YS4215140L THROTTLE BARREL$35.95
YS4220140L CARBURETOR ASSEMBLY$129.95
YS430591FZ CARBURETOR BODY$56.25
YS431091FZ THROTTLE BARREL$32.95
YS431591FZ BARREL SEAL$4.95
YS432091FZ CRANKSHAFT$69.95
YS432591FZ DRIVE WASHER$21.95
YS433091FZ DRIVE WASHER RETAINER$6.95
YS433591FZ MUFFLER ASSEMBLY$47.95
YS434091FZ MUFFLER$36.25
YS434591FZ EXHAUST HEADER$12.95
YS435091FZ EXHAUST LOCK NUT$8.25
YS435591FZ O RING SET$19.95
YS436091FZ CARBURETOR ASSEMBLY$109.95
YS436563 CRANKCASE$54.95
YS437063 CYLINDER HEAD ASSEMBLY$124.95
YS437563 CYLINDER HEAD W/ LINER$84.95
YS438063 CRANKSHAFT$64.95
YS438563 PISTON$44.95
YS439063 PISTON RING$21.95
YS439563 WRIST PIN$9.95
YS440063 CAM GEAR COVER SCREW SET$3.50
YS442080 CRANKCASE$129.95
YS442580 CYLINDER HEAD$46.50
YS443080 HEAD GASKET$3.50
YS443580 PISTON & LINER$129.95
YS444080 CYLINDER LINER$69.50
YS444580 PISTON$44.95
YS445080 PISTON RING$21.95
YS445580 CONNECTING ROD$24.95
YS446080 CRANKSHAFT$60.50
YS446580 CARBURETOR ASSEMBLY$129.50
YS447080 CARBURETOR BODY$53.50
YS447580 THROTTLE BARREL$22.50
YS448080 NEEDLE VALVE ASSEMBLY$32.95
YS448580 NEEDLE VALVE$14.95
YS4490140DZ CRANKCASE$152.95
YS4495140DZ VALVE COVER$18.95
YS4500140DZ HEAD ASSEMBLY$149.95
YS4505140DZ CYLINDER HEAD$94.95
YS4510140DZ INTAKE TAPPET ADJUSTING SCREW$3.50
YS4515140DZ EXHAUST TAPPET ADJUSTING SCREW$3.95
YS4520140DZ CRANKSHAFT$89.95
YS4525140DZ PISTON$78.50
YS4530140DZ CONNECTING ROD$39.95
YS4535140DZ BACK PLATE ASSEMBLY$89.95
YS4540140DZ BACK PLATE$49.95
YS4545140DZ DISC VALVE$21.95
YS4550140DZ INSULATOR$24.95
YS4560140DZ BACK PLATE SCREW$5.95
YS4565140DZ CAM GEAR$54.95
YS4570140DZ INTAKE CAM FOLLOWER$7.95
YS4575140DZ EXHAUST CAM FOLLOWER$7.95
YS4580140DZ EXHAUST PUSH ROD$7.95
YS4585140DZ PUSH ROD COVER$7.95
YS4595140DZ FUEL PUMP ASSEMBLY$139.95
YS4600140DZ REGULATOR BODY$32.95
YS4605140DZ DIAPHRAGM$7.95
YS4610140DZ REGULATOR SPRING$3.50
YS4615140DZ REGULATOR SCREW SET$3.50
YS4620140DZ FUEL PUMP BODY$39.95
YS4625140DZ PUMP VALVE$4.95
YS4630140DZ PUMP VALVE SPRING$3.50
YS4635140DZ FUEL PUMP PLATE$39.95
YS4640140DZ FUEL PUMP SCREWS$3.50
YS4645140DZ FUEL PUMP GASKET$3.50
YS4650140DZ FUEL PUMP PLUNGER$8.95
YS4655140DZ FUEL PUMP INSULATOR$9.95
YS4660140DZ INSULATOR O RING$3.50
YS4665140DZ FUEL PUMP STAY SET$6.95
YS4705140DZ INSULATOR GASKET$3.50
YS4710140DZ GASKET SET$15.95
YS4715140DZ O RING SET$24.95
YS4720140DZ FUEL TANK CLUNK$14.95
YS4723170DZ CDI WRIST PIN ACCESS SCREW$4.95
YS4725140DZ DISC VALVE PIN$11.95
YS4730140DZ CAM FOLLOWER$15.95
YS4735140DZ UPPER PUSH ROD$5.95
YS4740140DZ LOWER PUSH ROD$5.95
YS4745140DZ CARBURETOR ASSEMBLY$139.95
YS4750140DZ CARBURETOR BODY$81.95
YS4755140DZ THROTTLE BARREL SEAL$5.95
YS4760140DZ CARBURETOR GASKET$3.50
YS4765140DZ RESTRICTOR SET$9.95
YS477091H CRANKCASE$134.95
YS477591H CYLINDER HEAD$54.50
YS478091H HEAD GASKET$3.50
YS478591H HEAD SCREWS$3.50
YS479091H CYLINDER LINER$79.95
YS479591H PISTON$49.95
YS480091H PISTON RING$26.95
YS480591H CONNECTING ROD$28.95
YS481091H CRANKSHAFT$63.50
YS481591H BACK PLATE$9.95
YS482091H BACK PLATE GASKET$3.50
YS482591H CARBURETOR BODY$53.50
YS483091H CARBURETOR GASKET$3.50
YS483591H THROTTLE BARREL$23.50
YS484091H SEAL RING$3.95
YS484591H LOW SPEED NEEDLE$12.95
YS485091H CARBURETOR SUBPLATEnn$22.95
YS485591H GASKET SET$11.95
YS486091H PISTON & LINER$134.95
YS486591H CARBURETOR ASSEMBLY$134.95
YS4870110 CRANKCASE$64.95
YS4875110 CYLINDER HEAD ASSEMBLY$139.95
YS4880110 CYLINDER HEAD WITH LINER$115.95
YS4890140SPT CRANKCASE$149.95
YS4900140SPT CRANKSHAFT$84.95
YS4905140SPT BACK PLATE ASSEMBLY$89.95
YS4910140SPT BACK PLATE$49.95
YS4915140SPT CARBURETOR ASSEMBLY$126.95
YS4920140SPT THROTTLE BARREL$39.95
YS4925140SPT MUFFLER SET$48.95
YS4930FZ140S MUFFLER$36.25
YS4935NOSE RING ASSEMBLY$56.95
YS4940NOSE RING CASE$45.95
YS4945NOSE INNER RING$17.95
YS4950NOSE INNER RUBBERn$8.95
YS4965REAR MOUNT ARM$11.95
YS4970ARM SCREWSn$3.95
YS4975REAR MOUNT SCREWS$3.95
YS4985SHOCK ABSORBERn$28.95
YS4990BALL SUPPORT$3.95
YS4GP4 CYCLE GLOW PLUG$14.50
YS500063S CRANKCASE$48.95
YS500563S CYLINDER HEAD ASSEMBLY$121.95
YS501063S CYLINDER HEAD$82.95
YS501563S CYLINDER GASKET$5.95
YS502063S PISTON$42.95
YS502563S REGULATOR ADJ SCREW$5.95
YS503063S REGULATOR ADJ SCREW O-RING$3.95
YS503563S PLUNGER SPRING$5.95
YS504063S PLUNGER$4.95
YS504563S REGULATOR BODY A$19.95
YS505063S DIAPHRAGM$3.95
YS505563S REGULATOR BODY B$17.95
YS506063S REGULATOR BRACKET SET$6.95
YS506563S BOTTOM COVER SET$4.95
YS507063S BOTTOM COVER GASKET$3.95
YS507563S REGULATOR ASSEMBLY$54.95
YS508063S GASKET SET$12.95
YS508563S O RING SET$16.95
YS5095160DZ CRANKCASE$154.95
YS5100160DZ HEAD GASKET$3.50
YS5105160DZ CRANKSHAFT$94.95
YS5110160DZ CYLINDER LINER$59.95
YS5115160DZ PISTON$78.50
YS5120160DZ WRIST PIN$8.75
YS5125160DZ PISTON RING$29.95
YS5130160DZ CHECK VALVE$29.95
YS5135160DZ TUBE HOLDER$8.95
YS5140160DZ BACKPLATE ASEMBLY$94.95
YS5165160 DZ CONNECTING ROD$39.95
YS518050ST CRANK CASE$84.95
YS518550ST CYLINDER HEAD$19.95
YS519050ST HEAD GASKET$3.50
YS519550ST HEAD SET SCREWS$3.95
YS520050ST LINER & PISTON SET$94.95
YS520550ST LINER$49.95
YS521050ST PISTON$34.95
YS521550ST PISTON RING$19.95
YS522050ST WRIST PIN$6.95
YS522550ST WRIST PIN RETAINERS$3.95
YS523050ST CONNECTING ROD$17.95
YS523550ST CRANKSHAFT$52.95
YS524050ST REAR BEARING$21.95
YS5243CRANKSHAFT SPACER n$3.50
YS524550ST PROP NUT$2.50
YS525050ST BACK PLATE$8.95
YS525550ST BACK PLATE O RING$5.95
YS526050ST BACK PLATE SET SCREWS$3.95
YS527050ST CARBURETOR BODY$29.95
YS527550ST CARBURETOR GASKET$2.95
YS528050ST CARBURETOR O RING$2.95
YS528550ST CARBURETOR INSULATOR$15.95
YS529050ST INSULATOR SET SCREWS$3.50
YS529550ST INSULATOR GASKET$3.50
YS530050ST THROTTLE BARREL$16.95
YS530550ST NEEDLE VALVE SET$28.95
YS531050ST NEEDLE VALVE$13.95
YS531550ST NEEDLE SOCKET$10.95
YS532050ST NEEDLE SOCKET O RING$3.50
YS532550ST CARBURETOR SCREWS$3.50
YS533050ST REGULATOR BODY A$34.95
YS533250ST REGULATOR BODY A$24.95
YS533550ST REGULATOR BODY B$32.95
YS534050ST DIAPHRAGM$3.50
YS534550ST REGULATOR O RING$3.50
YS535050ST REGULATOR SCREW$7.95
YS535550ST REGULATOR SCREW O RINGS$3.50
YS536050ST REGULATOR SET SCREWS$3.50
YS536550ST PLUG$1.95
YS537050ST GASKET SET$7.95
YS537550ST O RING SETn$23.00
YS5385YS MOUNT SPACER 'A'$30.00
YS5390YS MOUNT SPAVER 'B'$19.50
YS539550ST PLUNGER$6.95
YS5400FZ110S CRANKCASE$69.95
YS5405FZ110S CYLINDER HEAD ASSEMBLY$134.95
YS5410FZ110S CYLINDER HEAD$114.95
YS5415FZ110S CYLINDER GASKET$4.95
YS5420FZ110S HEAD SCREWS$4.95
YS5425FZ110S CRANKSHAFT$69.95
YS5430FZ110S CRANKSHAFT RING$24.95
YS5435FZ110S REAR BEARING$22.95
YS5440FZ110S CONNECTING ROD$25.95
YS5445FZ110S BACK PLATE ASSEMBLY$74.95
YS5450FZ110S BACK PLATE$48.95
YS5455FZ110S DISC VALVE$24.95
YS5460FZ110S DISC VALVE PIN$7.95
YS5465FZ110S DISC VALVE SET SCREW$3.50
YS5470FZ110S CARBURETOR ASSEMBLY$124.95
YS5475FZ110S THROTTLE BARREL$32.95
YS5480FZ110S NIPPLE$3.50
YS5485FZ110S CARBURETOR SCREWS$8.95
YS5790FZ110S REGULATOR ASSEMBLY$56.95
YS5795FZ110S REGULATOR BODY B$19.95
YS5800FZ110S STAY LOWER$7.95
YS5805FZ110S STAY UPPER$8.95
YS5815FZ110S GASKET SET$14.95
YS582091SR CRANKCASE$134.95
YS582591SR CYLINDER HEAD$54.95
YS583091SR HEAD GASKET$3.50
YS583591SR PISTON & LINER$134.95
YS584091SR CYLINDER LINER$79.95
YS584591SR PISTON SIDE EXHAUST$49.95
YS585091SR PISTON RING$29.95
YS585591SR CRANKSHAFT$69.95
YS586091SR REAR BEARING$24.95
YS586591SR BACK PLATE$11.95
YS587091SR BACK PLATE GASKET$3.50
YS587591SR CARBURETOR ASSEMBLY$139.95
YS588091SR CARBURETOR BODY$59.95
YS588591SR THROTTLE BARREL$26.95
YS589091SR GASKET$9.95
YS589591SR O RING SET$24.95
YS5900170DZ CRANKCASE$154.95
YS5905170DZ HEAD GASKETn$3.95
YS5910170DZ HEAD ASSEMBLY$144.95
YS5915170DZ INTAKE VALVE SPRING$7.25
YS5920170DZ EXHAUST VALVE SPRING$6.50
YS5925170DZ CRANKSHAFTn$94.95
YS5930170DZ CYLINDER LINER$59.95
YS5935170DZ PISTON$78.50
YS5940170DZ WRIST PIN$12.95
YS5945170DZ CONNECTING ROD$39.95
YS5950170DZ PUMP ASSEMBLYnn$134.95
YS5957175DZ PUMP BODY W/ PLUNGER$64.95
YS5965170DZ WRIST PIN ACCESS PLUG$5.95
YS5970170DZ TUBE HOLDERn$8.75
YS5980170DZ BACK PLATE ASSEMBLYn$84.95
YS5985170DZ CAM FOLLOWERnn$15.95
YS5990170DZ PUMP VALVE SPRING$3.20
YS6000170DZ INTAKE PIPE$14.50
YS6035115S WRIST PIN$12.25
YS6050170DZ CDI CYLINDER HEAD ASSEMBLYn$159.95
YS6055175DZ CYLINDER HEAD$96.95
YS6060170DZ CDI PISTON$84.95
YS6065170DZ CDI CRANKSHAFTnn$99.95
YS6070170DZ CDI BACK PLATE ASSEMBLY$110.95
YS6075170DZ CDI CARBURETOR INSULATOR$26.95
YS6080170DZ CDI INSULATOR GASKET$3.95
YS6085170DZ CDI CAM FOLLOWER$19.95
YS6090170DZ CDI SUB NEEDLEn$19.95
YS6095170DZ CDI SUB NEEDLE O-RING$3.95
YS6100170DZ CDI GASKET SET$14.95
YS6105170DZ CDI O-RING SET$27.95
YS6110170DZ CDI IGNITION BOX$149.95
YS6115CDI SPIRAL WRAP$6.95
YS6120170DZ CDI CONVERSION KIT$400.00
YS6130170DZ CDI PLUG$23.95
YS6135170DZ CDI CARBURETOR BODY$89.95
YS6140170DZ CDI CARBURETOR ASSEMBLY$149.95
YS6145YS170 CDI PROP NUT SET$11.95
YS615056SR CRANKCASE$95.95
YS615556SR CYLINDER HEAD$42.95
YS616056SR HEAD GASKET$3.95
YS616556SR LINER AND PISTON SET$99.95
YS617056SR LINERn$54.95
YS617556SR PISTON$39.95
YS618056SR PISTON RING$19.95
YS618556SR CRANKSHAFT$56.95
YS619056SR BACK PLATE$9.95
YS619556SR CARBURETOR BODY$32.95
YS620056SR CARBURETOR O RING$4.95
YS620556SR INSULATOR SET SCREWS$3.95
YS621056SR THROTTLE BARREL$18.95
YS621556SR THROTTLE BARREL SET SCREW$3.95
YS622056SR HIGH NEEDLEn$13.95
YS622556SR HIGH NEEDLE O RING$3.95
YS623056SR HIGH NEEDLE SOCKET$10.95
YS623556SR HIGH NEEDLE SOCKET O RING$3.95
YS624056SR CARBURETOR SCREWS$3.95
YS624556SR REGULATOR BODY A$24.95
YS625056SR REGULATOR BODY B$37.95
YS625556SR O RING SET$24.95
YS6260REAR MOUNT ASSEMBLY$99.95
YS6265REAR MOUNT$89.95
YS627070FZ-S CRANKCASE$59.95
YS627570FZ-S CYLINDER HEAD ASSEMBLY$134.95
YS628070FZ-S CYLINDER HEAD$99.95
YS628570FZ-S CRANKSHAFT$74.95
YS629070FZ-S CRANKSHAFT RING$24.95
YS629570FZ-S REAR BEARING$24.95
YS630070FZ-S PISTON$47.95
YS630570FZ-S PISTON RING$21.95
YS631070FZ-S WRIST PIN$13.95
YS631570FZ-S CARBURETOR BODY$59.95
YS632070FZ-S THROTTLE BARREL$28.95
YS632570FZ-S NEEDLE SOCKET$16.95
YS633070FZ-S NEEDLE SOCKET O-RING SET$4.95
YS633570FZ-S REGULATOR ASSEMBLY$59.95
YS634070FZ-SREGULATOR BODY B$34.95
YS634570FZ-S REGULATOR SET SCREWS$3.95
YS635070FZ-S REGULATOR SPACER$3.95
YS635570FZ-S GASKET SET$13.95
YS636070FZ-S O RING SET$23.95
YS636570FZ-S CONNECTING ROD$28.95
YS637070FZ-S BACK PLATE ASSEMBLY$74.95
YS637570FZ-S BACK PLATE$44.95
YS638070FZ-S DISC VALVE$27.95
YS638570FZ-S DISC VALVE PIN$8.95
YS639070FZ-S DISC VALVE SET SCREW$3.95
YS639570FZ-S NEEDLE VALVE SET$32.95
YS640070FZ-S PUSH ROD COVER SET$17.95
YS6405115S CRANKCASEnnn$69.95
YS6410115S CYLINDER HEAD ASSEMBLY$149.95
YS6415115S CYLINDER HEAD nn$119.95
YS6420115S CRANKSHAFT$79.95
YS6425115S REAR BEARINGn$29.95
YS6430115S PISTON$54.95
YS6435115S CONNECTING ROD$26.95
YS6440115S BACK PLATE ASSEMBLY$74.95
YS6460115S DISC VALVE SET SCREW$3.95
YS6465115S CARBURETOR BODY$56.95
YS6470115S THROTTLE BARREL$32.95
YS6475115S NEEDLE VALVE SET$34.95
YS6480115S NEEDLE SOCKET$16.95
YS6485115S REGULATOR SPACER$3.95
YS6490115S GASKET SET$15.95
YS6495115S O RING SET$24.95
YS6505913DS CRANKCASE$136.95
YS6510913DS CYLINDER HEAD$64.95
YS6515913DS PISTON LINER ASSEMBLY$132.95
YS6520913DS LINER$76.95
YS6525913DS PISTON$46.95
YS6530913DS CRANKSHAFT$69.95
YS6535913DS BACKPLATE$44.95
YS6545175DZ CRANKSHAFT$99.95
YS6547175DZ PISTON$89.95
YS6550175DZ CONNECTING ROD$42.95
YS6565175DZ CARBURETOR ASSY$149.95
YS6570175DZ CARBURETOR BODY W/ BARREL$99.95
YS6572175DZ THROTTLE BARREL ORING$4.95
YS6573175DZ ORING SET$29.95
YS6575175DZ PUMP CAP$6.95
YS6580120SR CRANKCASE$139.95
YS6585120SR CYLINDER HEAD$69.95
YS6590120SR HEAD GASKET$3.95
YS6600120SR PISTON AND LINER SET$139.95
YS6605120SR CYLINDER LINER$84.95
YS6610120SR PISTON$49.95
YS6615120SR PISTON RING$27.95
YS6620120SR CRANKSHAFT$74.95
YS6625120SR BACKPLATE$46.95
YS6635120SR CARBURETOR BODY$57.95
YS6640120SR THROTTLE BARREL$26.95
YS6645175DZ HEAD SHIM$7.95
YS665060SR CRANKCASE$99.95
YS665560SR CYLINDER HEAD$44.95
YS670060SR HEAD GASKETnn$3.95
YS670560SR LINER AND PISTON SET$109.95
YS671060SR LINER$59.95
YS671560SR PISTON$44.95
YS672060SR PISTON RING$24.95
YS672560SR CRANKSHAFT$59.95
YS673060SR NEEDLE VALVE DECENTnn$8.95
YS673560SR HIGH NEEDLE$15.95
YS674060SR HIGH NEEDLE O RING$3.95
YS674560SR INSULATOR O RING$4.95
YS675060SR O RING SET$26.95

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