Yamaha ET340D Supplementary Service Manual Download | Manualshive

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Summary of Contents for ET340D

Page 1: ... YAMAHA SNOWMOBILE Frame serial number 8J6 025101 8J6 039999 Engine serial number E338 025101 E338 039999 LIT 12618 00 24 8J6 28197 10 ...

Page 2: ... is press fitted to the mixing chamber body and accordingly the main nozzle cannot be removed 1980 ET340D 2 For better performance the recom mended type of the main jet which is more effective at alititudes is changed Main jet setting chart 30 C 20 C 10 C ooe 10 C 20 C Altitude 22 F 4 F 14 F 32 F 50 F 68 F I I I I I I 220 240 Sea level Std 250 220 600m 2000 ft 240 Std 220 1200m 4000 ft 24 210 210 ...

Page 3: ...inder head exhaust pipe decarbonize a Spark plug condition gap and cleaning a a Tightening of the cylinder head a DRIVE Tightness of bolts and nuts a a Wear on slide runners a a Primary drive system a a V belt a a Secondary drive system a a Sheave distance a a Sheave offset a a Brake pad wear a a Brake operation and adjustment a a Guide wheel rubber a a Wear of drive track wheel sprocket a a Drive...

Page 4: ...mi 1000 mil ENGINE Starter case 0 Oil pump control box 0 0 Aeroshell grease 7A or Esso Beacon 325 grease Pump drive cover 0 0 Oil in the oil tank 0 YAM A LUBE 2 cycle oil DRIVE Primary sheave weight 0 0 Molybdenum disulfide and roller pins snowmobile grease Secondary shaft and 0 0 Molybdenum disulfide sliding sheave snowmobi le grease Front axle housing 0 0 Shaft 1 and shaft 2 0 Slide rail 0 Light...

Page 5: ...amber volume with spark plug 2 1 3 cc 1 30 cu in Compression chamber type Dome Squish Head gasket thickness 0 5 mm 0 02 in Cylinder Material Cast iron sleeves aluminum Bore size 60 mm 2 362 in Taper limit 0 05 mm 0 0020 in Out of round limit 0 01 mm 0 0004 in Piston Piston skirt clearance Measuring point 0 040 0 045 mm 0 001 6 0 0018 in 10 mm from piston skirt end Piston oversize 1st 60 25 mm 2 37...

Page 6: ...5 special X 1 pc Crank oil seal type Left X q ty FPJ 30 72 8 2TS X 1 pc Crank oil seal type Center X q ty Labyrinth seal X 1 pc Crank oil seal type Right X q ty FPJ 25 48 8TS X 1 pc Carburetor Type manufacturer quantity 838 34 MIKUNI X 1 pc I D M ark 8J600 Main jet MJ 240 Pilot jet PJ 75 Pilot screw P S 1 0 turns out Throttle va lve ThV 1 90 Valve seat V S rjJl 5 mm 0 059 in Float height 25 1 mm 0...

Page 7: ...ype Reduction ratio Chain pitch X Number of links Free play Chain housing oil quantity Chain housing oil grade Brake Type Brake pad thickness Brake pad wear limit Gap between pad and disc White 0 20 0 25 mm 0 0079 0 0098 in 1 67 1 87 mm 0 0657 0 0736 in 1 32 0 50 0 63 cc 0 0169 0 0213 oz 4 1 5 4 70 cc 0 1403 0 1589 oz 25 1 mm 0 98 0 04 in at idle 2 4 Liter 2 5 US qt YAMALUBE 2 cycle V belt automat...

Page 8: ...sistance 3500 at 20 C 68 F Brown Black Charging coil resistance 15 00 at 20 C 68 F Blue Black Ignition timing B T D C 1 6 0 1 mm 0 06 0 004 in Ignition coil M odel M anufacturer CM62 20 H ITACH I Spark gap 9 mm 0 4 in 300 r min 11 mm 0 6 in 3 000 r min Primary winding resistance 0 150 at 20 C 68 F Secondary winding resistance 3 6kO at 20 C 68 F Diode Yes or No No Spark plug Type quantity NGKBR 9ES...

Page 9: ... tensioner lock nut M10 P1 2 5 3 3 m kg 24 ft Ibl Installation of front axle R H M20 P1 0 9 0 m kg 65 ft Ibl Front axle housing and Frame M 8 P125 2 5 m kg 1 8 ft Ibl Wheel sprocket and Front axle 0 5 m kg 35 ft Ibi Sh aft 1 and Frame M10 P1 25 5 5 m kg 40 ft Ib Use LOCK TITE Shaft 2 and Rear bracket M10 P1 25 5 5 m kg 40 ft Ibl Use LOCK TITE Rear bracket and Frame M8 P1 25 2 5 m kg 1 8 ft Ibl Use...

Page 10: ... kg 18 ft Ib Steeri ng gate M8 P1 25 1 4 m kg 10 ft Ib 4 SPEC IAL TOOLS 1 4 a 10 6 No Description Tool No 1 Dial gauge 90890 03097 2 Dial gauge stand No 2 90890 01195 3 Dial gauge needle 56 mm 90890 03098 4 a Flywheel puller bolt 90890 01803 4 b Flywheel puller attachment 90890 01804 7 4 c Flywheel puller screw 90890 01806 4 d Drive handle 90890 01 81 7 4 e Flywheel puller body 90890 01848 5 Rotor...

Page 11: ...E g _ w W tth l l m C D 1 magneto Color code G Green B Black Beam switch YIII T __ Yellow L Light blue 0 Orange Voltage regulator Tail brake light l2V 8W 23W o 61 I I I I 10 61ftILIBrI 1 o 6 C D 1 unit o Ignition coil Gy Gray Br Brown B W Black white W R White red G Y Green yellow Spark plug 1 0 CXl 0 m l w en 18 rJ 2 G 0 l G rJ l S ...

Page 12: ...1980 ET340D 6 WIRE AND PIPE ROUTING DIAGRAM j j c 160mm c B 160mm c 11 ...

Page 13: ...stalling breather pipe route it inside the instrument panel 29 Oil tank breather pipe 30 Through the breather pipe end into the fuel pump bracket hole 31 Bearing holder Through the throttle wire brake wire beam switch lead wire engine stop switch lead wire and brake light lead wire 32 Hook band Through the beam switch lead wire engine stop switch lead wire and brake light lead wire 33 Brake light ...

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