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Summary of Contents for FZ70S

Page 1: ... check valve arrow fl9 1 with the arrow fac ing to wards the tank SPECIFICATIONS Bore 27 7mm 19 0mm Stroke 455g Weight engine muffler 33g 2 OOO 15 OOOrpm Practical RPM Tube Fuel Filter PROPELLER INSTALLATION Due to the high torque of the FZ63 engine we have equipped it with a double lock system for safety 1 Mount the propeller and tighten the rear nut Next tighten the front nut as shown in Fig 1 2...

Page 2: ...ning rough on idle the low speed mixture is rich If the engine starts to speed up and dies on idle or starts to detonate when advancing the throttle the mixture is lean Turn the low speed needle valve clockwise to richen and counterclockwise for a leaner mixture note that the direction of the low speed needle valve is opposite the high speed needle valve Adjustments to the low speed needle valve s...

Page 3: ...od set _ 2 r Push rod cover set 42 i F5142 Push rod cover 0 rings 4 43 i G1043 Con rod I GlO44A Back plate assembly 44 J G1044 Back plate 45 i G1045 Disc valve 46 i G1046 Disc valve pin 47 G1 047 Disc valve set screw 48 F5149 Back plate gasket F5150 B a c k p la te sc r e w s 1 iThrottle barrel 50 GlO51 Carburetor bo lL __ r c 51 G1052 ii 52 F5153 iThrottle barrel 0 ring Rs124 ITHrottle barrel ret...

Page 4: ...facturing error YS will repair or replace the engine at no charge Warranty will not cover normal wear Should the engine be modified incorrectly assembled or abused there will be a normal charge for parts and labor The use of four cycle fuel due to low oil content will also void warranty DErAIL A i r 45 1 15 YAMADA MFG GO LTD 67 Tsuchitori Inuyama Aichi 484 0917 JAPAN tel 81 568 67 0265 mail yspowe...

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