User manual YAMAHA YP250

[. . . ] EB000000 YP250 SERVICE MANUAL ©1996 by Yamaha Motor Co. , Ltd. 1st Edition, January 1996 All rights reserved. Any reprinting or unauthorized use without the written permission of Yamaha Motor Co. , Ltd. is expressly prohibited. EB001000 NOTICE This manual was produced by the Yamaha Motor Company primarily for use by Yamaha dealers and their qualified mechanics. [. . . ] Install: S Secondary sliding sheave 1 NOTE: Install the secondary sliding sheave 1 using the oil seal guide 2 to the secondary fixed sheave 3 . Oil seal guide: 90890-01384 4-34 V-BELT, CLUTCH AND SECONDARY/PRIMARY SHEAVE 3. Apply: S BEL-RAY assembly lube® (to the guide pin sliding groove 1 , and ) and oil seal 2 5. Install: S Secondary sheave complete 1 S Compression spring S Clutch carrier 2 NOTE: Temporarily tighten the nut 5 while attaching the clutch spring holder 3 and clutch spring holder arm 4 and compress the spring. CAUTION: Use the spacer 6 (ø 30 mm, thickness: X 3 mm). Clutch spring holder: 90890-01337 Clutch spring holder arm: 90890-01464 6. Install: S V-belt 1 S Clutch assembly 2 NOTE: Install the V-belt with the clutch assembly to the primary sheave side. 2 CAUTION: Never smear grease to the V-belt, secondary sheave and clutch. 4-35 V-BELT, CLUTCH AND SECONDARY/PRIMARY SHEAVE 7. Install: S Nut 1 (clutch carrier) ENG 90 Nm (9. 0 mSkg) NOTE: Tighten the nut (clutch carrier), using the locknut wrench 3 while holding the clutch carrier with the rotor holder 2 . Rotor holder: 90890-01235 Locknut wrench: 90890-01348 8. Install: S Clutch housing 1 S Nut 2 (clutch housing) NOTE: Tighten the nut (clutch housing), using the sheave holder 3 . Sheave holder: 90890-01701 9. Set: S V-belt 1 NOTE: Move the V-belt to minimum diameter of the primary sheave 1 , maximum diameter of the secondary sheave 2 and make the V-belt tense. 4-36 A. C. MAGNETO AND STARTER CLUTCH ENG A. C. MAGNETO AND STARTER CLUTCH MAGNETO COVER AND STARTOR COIL 7 Nm (0. 7 mSkg) 20 Nm (2. 0 mSkg) 7 Nm (0. 7 mSkg) 10 Nm (1. 0 mSkg) Order Job name/Part name Magneto cover and startor coil removal Drain the engine oil. Side panels Q'ty Remarks Remove the parts in order. Refer to "ENGINE OIL REPLACEMENT" section in CHAPTER 3. Refer to "COVER AND PANEL" section in CHAPTER 3. NOTE: Disconnect the couplers. 1 2 3 4 5 6 7 8 Couplers (A. C. magneto lead) Exhaust pipe Exhaust pipe gasket Magneto cover Gasket (magneto cover) Dowel pins Startor coil Pick up coil 2 1 1 2 1 2 1 1 Reverse the removal procedure for installation. 4-37 A. C. MAGNETO AND STARTER CLUTCH ENG 10 Nm (1. 0 mSkg) 80 Nm (8. 0 mSkg) Order Job name/Part name A. C. magneto and starter clutch removal Rotor Shaft (idle gear) Idler gear Starter one way clutch assembly Woodruff key Starter wheel gear Q'ty Remarks Remove the parts in order. 1 2 3 4 5 6 1 1 1 1 1 1 Refer to "A. C. MAGNETO ROTOR REMOVAL/INSTALLATION" section. Refer to "ROTOR INSTALLATION" section. Reverse the removal procedure for installation. 4-38 A. C. MAGNETO AND STARTER CLUTCH YP401081 ENG A. C. Remove: S Nut 1 (rotor) S Plain washer 2 NOTE: D Loosen the nut (rotor) 1 while holding the rotor with a sheave holder 3 . [. . . ] Auto choke unit resistance S Disconnect the auto choke unit coupler from the wireharness. S Connect the pocket tester ( 1) to the auto choke unit coupler lead. Black terminal 2 Auto choke unit resistance: 16 X 24 (20_C) Replace the auto choke unit. MEETS SPECIFICATION YP****** OUT OF SPECIFICATION 7. [. . . ]