EY15V, EY20V - Small Engine Discount

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5-4 MOW TO REASSEMBLE 0 Precaution in reassembling Every and each part should be cleaned thoroughly. Especially, pay utmost care and attention to the clean- 7 liness of the piston, cylinder, crankshaft, connecting rod and bearings. Scrape completely off carbons from the cylinder head and the upper part of the piston; especially the carbon adhered in the groove of the piston ring should be carefully and completely taken out. Carefully check the lip portion of every oil seal. If faulty one is found, replace it without any hesitation. Apply enough oil to the lip portion of the oil seal when reassembling. Replace all the gaskets with new ones. Replace the key, pin, bolt, nuts, etc. with new one, if necessary. Whenever tightening torque is specified, conform to the specified figures. Apply oil to the revolutionary parts and friction surfaces, when reassembling. Check and adjust the clearances of various portions and then reassemble. When some main portions are assembled in the course of reassembling, turn or move the gadgets by hand and pay attention to the frictional noise and resistance. ~Sequesnce and precautions in reassembling 5 -4- 1 CRANKSHAFT 1) Fit the oil seal guide onto the end of the crankshaft, and insert the crankshaft into the crankcase as shown in Fig. 21. Note: In case of not using the oil seal guide, be careful not to damage the oil seal lip. 2) Put woodruff key (for magneto) in place. r Fig. 21 - la -
3) Dimensions of Crankshaft Pin EY 15V EYZOV D (Crankshaft pin Dia.) W (Crankshaft pin Width) PISTON TO CYLINDER AT PISTON SKIRT THRUST FACE 24 dia.-omo37 26 dia.-o*037 -0.050 -0.050 23 io” 24 io” 0.020L - 0.059L PISTON RING GAP PISTON RING SIDE CLEARANCE IN GROOVES TOP, SECOND 01 L 0.2 L - 0.4 L 0.2L - 0.4L 0.05L - 0.25L 0.05L - 0.25L I TOP RING 1 0.09OL - 0.135L I 0.050L - 0.095L SECOND 0.060L - 0.105L 0.01OL - 0.055L OIL RING 0.01OL - 0,065L 0.01OL - 0.065L CONNECTING ROD TO CRANK DIA 0.037L 0.063L PIN SIDE 0.1 L - 0.3L CONNECTING ROD TO PISTON I 0.01OL - 0.029L PISTON PIN TO PISTON fig. 22 0.009T - 0.01OL L: Loose, T: Tight - 19-
Page 2 and 3: ROBIN ROBIN AMERICA, INC. ROBIN TO
Page 4 and 5: Section Title Page 7 . GOVERNOR ADJ
Page 6 and 7: 2. PERFORMANCE 2-1 MAXIMUM OUTPUT T
Page 8 and 9: 4. GENERAL DESCRIPTION of ENGINE CO
Page 10 and 11: 4-7 CYLINDER HEAD The cylinder head
Page 12 and 13: 4-14 SECTIONAL VIEW of ENGINE MODEL
Page 14 and 15: ’piston Pin Main Bearing Cover Oi
Page 16 and 17: ~ 5. DISASSEMBLY and REASSEMBLY 5-
Page 18 and 19: ~ ~~ ~ ~~ 5-3 HOW TO DISASSEMBLE *L
Page 20 and 21: Order Procedures Remarks Tool exhau
Page 24 and 25: 5-4-2 PISTON and PISTON RING 1) If
Page 26 and 27: ~ 5-4-5 MAIN BEARING COVER Install
Page 28 and 29: 5-4-7 TAPPET ADJUSTMENT Lower the t
Page 30 and 31: After measuring the air gap between
Page 32 and 33: 6. MAGNETO 6-1 MAGNETO The spark fo
Page 34 and 35: 5) Remove the flywheel without turn
Page 36 and 37: 2) With a screwdriver in the groove
Page 38 and 39: 8- 1 -2 PILOT SYSTEM The pilot syst
Page 40 and 41: 9. BREAK-IN OPERATION of REASSEMBLE
Page 42 and 43: The following three conditions must
Page 44 and 45: 11-5 ENGINE KNOCKS. % 2) 1) Low-qua
Page 46 and 47: 12-5 WIRING Wire as shown in the wi
Page 48 and 49: 14. TABLE of CORRECTION STANDARDS I
Page 50 and 51: ~~~ ~ ~ I ENGINE MODEL ITEM 1 Free
Page 52 and 53: ~~ ~ I ITEM I MODEL I FREQUENCY OF
Page 54: 15-5 EVERY 500 - 600 HOURS (SEMIANN

EY15V, EY20V - Small Engine Discount

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