717 Engines

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ROTARY VALVE 717 and 787 RFI Engines 9 N•m (80 lbf•in) F00D26T 1 20 N•m (15 lbf•ft) 2 787 RFI engines Loctite 243 Anti-seize lubricant 12 2 20 N•m (15 lbf•ft) 13 717 engines 4 1 12 3 11 Formula XP Injection Oil 8 Section 04 ENGINE (2-STROKE) Subsection 06 (ROTARY VALVE) 15 7 Molykote 111 smr2004-Complete Line Up 153 14 10 6 5 9
Section 04 ENGINE (2-STROKE) Subsection 06 (ROTARY VALVE) GENERAL The following verification procedures such as clearance of rotary valve cover or rotary valve shaft gear backlash can be performed without removing engine from watercraft. However engine must be removed from watercraft to work on rotary valve shaft/components. Refer to REMOVAL AND INSTALLATION for engine removal procedure. Bottom end must be opened to remove rotary valve shaft. Refer to BOTTOM END. INSPECTION ON WATERCRAFT Remove carburetor(s). Refer to CARBURETOR. Rotary Valve Cover Unscrew 4 screws no. 2 and withdraw rotary valve cover no. 1. Remove rotary valve no. 13. Rotary Valve/Cover Clearance The clearance between the rotary valve and the cover must be 0.25 – 0.35 mm (.010 –.014 in). NOTE: If the clearance is lower, this could create an overheating situation and if the clearance is higher, this could create a hard starting situation. There are 2 methods to verify rotary valve/cover clearance: – the 45° feeler gauge method – the soldering wire method. 45° FEELER GAUGE METHOD Remove O-ring no. 12 from rotary valve cover no. 1. Remove intake manifold from rotary valve cover (except 787 RFI engines). Reinstall cover no. 1 in place WITHOUT its O-ring andtorquescrewsto20N m(15lbfft). Insert feeler gauge blade through cover inlet ports to verify clearance. At least verify clearance at two different places in each port. Feeler gauge blade thickness according to specifications should fit between rotary valve and cover. F01D53A 1. 45° feeler gauge 1 If rotary valve cover clearance is out of specifications, machine rotary valve cover seating surface or replace the cover. SOLDERING WIRE METHOD Remove O-ring from rotary valve cover. Use the following type of solder: – resin core – diameter: 0.8 mm (.032 in) – electronic application (available at electronic stores). Install 2 soldering wire pieces of 13 mm (1/2 in) long directly on rotary valve, one above and one below rotary valve gear. Apply grease to hold solder in position. Refer to the following illustration for proper position or rotary valve and pieces of soldering wire. F01D3PA TYPICAL 1. Soldering wire 154 smr2004-Complete Line Up 1
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TOP END 717 Engines Molykote 111 F1
Page 3 and 4: 947 DI Engines 26 10 N•m (89 lbf
Page 5 and 6: 2 3 1 F06D16B RAVE VALVE CLOSED 1.
Page 7 and 8: F06D0QA 1 1. Remove screws Remove R
Page 9 and 10: F06D28A 1. Remove O-ring 1 Remove s
Page 11 and 12: Remove cylinder head no. 2. If shel
Page 13 and 14: F00B0KA 1 1. Tool cut-out toward bo
Page 15 and 16: A F01D8AA 2 1. Measuring perpendicu
Page 17 and 18: F00B09A 2 1. Use the micrometer to
Page 19 and 20: F01D8KA 1 3 2 1. Sliding valve 2. O
Page 21 and 22: - Replace the inner halves by the a
Page 23 and 24: 947 DI Engines Securecirclipinpisto
Page 25 and 26: F01D45A 717 ENGINES 1. Aligning cyl
Page 27 and 28: Apply Molykote 111 on threads of cy
Page 29 and 30: Compare the obtained value with the
Page 31 and 32: Section 04 ENGINE (2-STROKE) Subsec
Page 53: Section 04 ENGINE (2-STROKE) Subsec
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717 Engines

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