Conroy Sno-Jet 1975 Thunder Jet Page 12 Manual Download | Manualshive

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Summary of Contents for Sno-Jet 1975 Thunder Jet

Page 1: ......

Page 2: ...Suspens ion 40 Ski 44 Steering 46 Body 48 Hood 52 Fuel System 54 Tool Kit 56 Foreword This manual is intended to offer a parts list and racing suggestions for the 1975 ThunderJet The manual assumes t...

Page 3: ...Jet dealer can perform warranty repairs If you travel out of your local area to purchase your machine you are expected to go back to that selling dealer for your warranty service Safety Precautions 1...

Page 4: ...hift patt ern Figure 4 Part Numb er 1 0 Number Outside Dia Weight in Grams 050780 175 437 3 725 li ghter 050779 135 471 4 479 lighter 050777 107 491 4 958 lighter 050776 106 530 5 958 standard 050778...

Page 5: ...ng ramp and weights fo r engine cc size Clutch Engagement Too Hig Wrong ramp or spring Check ramp and weight application or dirty moveable parts Lubri cation on drive clutch very little graphite or dr...

Page 6: ...rope end through th e st arter case hole Then thread the starter rope through th e starter handle and connector and make a knot on the rope end When the starter rope is drawn out of the starter case i...

Page 7: ...e to use the three short screws with the puller when removing the flywheel Note Immediately after the flywheel is removed take the woodruff key off the shaft and attach it to the flywheel so that it d...

Page 8: ...le bearings in the upper rod end so as not to loose them when the engine is moved E REMOVAL OF CRANK SHAFT ASSEMBLY 1 Remove the four bolts that hold the engine mounting bracket The engine is now free...

Page 9: ...are positioned on th e V blocks and check for align ment with a dial gauge 5 Correction of the crankshaft deflection can be accom plished by tapping the flywheels with a brass hammer and or using wedg...

Page 10: ...he range of 0 014 0 020 in 0 35 0 55 mm the ring is in satisfactory condition If more than 0 020 in 0 55 mm th e ring face is excessively worn Remove the ring from the cylinder and keep it in a free p...

Page 11: ...be installed so tha t the arrow mark on the piston crown po ints to the exhaust port toward the front of the engine Figure 36 TJ36 Remedies 1 If any piston ring is found stuck poor sealing will result...

Page 12: ...ser so th at al ignment mark on the flywheel magn et is aligned with tim ing mark on the pulser 11 A ll nuts must be ti ghtened evenly Figure 40 Figure 41 D IGNITION TIMING ADJUSTMENT 1 Instal l the d...

Page 13: ...d be selected c To remove the rotor be sure to use the rotor puller an accessory tool Avoid using a hammer or the rotor may be damaged d Handle the C D I unit with special care If you should drop care...

Page 14: ...ged Check for low compression above Carb uretor inlet valve leaking Carb uretor fl oat level to o high Back Firing Spark plu g wires reversed Impulse li ne di sconnected Bad spark plug High ten sion l...

Page 15: ...fuel that is available in some locations There are some specially formulated syn thetic oils avail able that require a dif ferent mixing ratio to norm al If these are used the mixing ratio shown on t...

Page 16: ...CARBURETION 15 31 12 13 0 1 30 2 9 28 27 2 6 fA 25 24 _ _ I 23 ll Io 2 2 21 J 20 19 18 17 16 15 14 7 5 6 4 1 2 3 8 11...

Page 17: ...ixture then flows into the plunger area mixed again with air coming from the air intake port for starting and is delivered to the engine in the proper air fuel ratio through the fuel dis charge outlet...

Page 18: ...ted position Less than V2 turn indicates pilot jet to be too sma ll and the next size larger pilot jet should be used More than 2 turns out shows the pilot to be too large and a smaller jet is needed...

Page 19: ...st idle speed rotate idl e adjusting screw s clockwise until carburetor slide ju st beg ins to rise 6 When the throttle slide s just begins to rise Rotate idle screw turn clockwise or until required i...

Page 20: ...ack alignment is very important to both durability and per formance The track should be aligned so the slide rail hi f ax is centered on the cleat and not rubbing on track belts or guides To Adjust 1...

Page 21: ...s po tential And too many studs can also cause difficulty in turn ing ln order to turn the front of the track mu st slide somewhat Too many studs can prohibit this and cause poor steering The correct...

Page 22: ...s in the center of the track give straight ahead dig for go od acceler ation Notice they are an equal distance from the center within the cleat yet not in the same spot on every cleat This staggering...

Page 23: ...hen the bar starts to turn red hot about 1200 remove worn insert with a pair of pl iers Let bar cool and clean the groove Brush the groove with fl ux from the kit and insert the new carbide piece Heat...

Page 24: ...o 1 rati o and the maximum R P M exceeds 8000 then a higher gear ratio is needed larger to p sprocket or smaller bottom Sno Jet has several different sprockets available r NOTE It will be neces sary t...

Page 25: ...Max R P M 8000 R P M L ight Co il A ir Gap Fixed Ignit ion Co il A ir Gap Fixed Cy linder Head Torque 16 5 19 5 ft Ibs 2 3 2 7 m kgs Man ifold Torque 45 in Ibs 0 5 m kqs Crankcase Torqu e 18 0 ft Ibs...

Page 26: ...CAL SYSTEM 04 31 LIGHTS IGNI TION WIRING BATTE RY ETC DRIVE SYSTEM 05 33 DRIVE CLUTCH CONVERTER CHAIN CASE 35 BRAKE 39 SUSPENSION 06 41 FRON T SHAFT 43 HOUS ING BEAR ING SPROCKETS DR IVE T RACK SKI 08...

Page 27: ...26 ENGINE MOUNT KD...

Page 28: ...912740 Nut 3 8 NF Ny loc 9 4 050223 Washer 2 5 0201 13 Rubber Mount 1 6 181871 Engine Mount L H 1 7 020085 Pad 1 8 020086 Special Washer 1 9 910251 Cap Screw 3 8 NF X 2 1 10 181636 Cap Screw 10 MM X 2...

Page 29: ...28 EXHAUST...

Page 30: ...Oty 1 030623 Exhaust Manifold 1 2 110087 Exhaust Spring 1 5 Long 3 3 030625 Muffler 1 4 181946 Muffler Support Spring 1 5 030634 Rubber Pad 2 6 916945 Pop Rivet 4 7 110092 Exhaust Spring 1 0 Long 2 8...

Page 31: ...30 ELECTRIC SYSTEM 1 O tl IGNITION SWITCH fl Q CD CV I ENGINE COil...

Page 32: ...03 72 Adjust Screw N ut 2 12 040384 Sea l Head L amp 1 13 120414 Spacer 4 14 040385 Bulb 1 15 040540 Headlam p Unit 1 16 040186 Ignition Sw itc h 1 17 040175 Rub ber Boot 1 18 181892 Tach ometer 1 19...

Page 33: ...32 DRIVE CLUTCH 60...

Page 34: ...sing Bearing Assembly 1 6 050763 Lockwasher 3 7 050764 Cap Screw 3 8 050759 Set Screw 3 9 050765 Nut 3 10 050758 Locknut 3 12 050782 Ramp 257 3 13 050766 Roller Bearing Kit 1 14 050776 Wei lt 106 6 14...

Page 35: ...34 CONVERTER CHAIN CASE...

Page 36: ...ng 1 15 770009 Bearing 1 16 910104 Cap Screw 5 1 6 NC x 1 0 3 17 911243 Bolt 10 NF x 5 6 18 181514 Brake Disc 1 19 070150 Hub 1 20 912756 Nut Hex 1 0 NF 1 21 912740 l ocl nut 3 8 NF 3 22 9 12831 Washe...

Page 37: ...36 CONVERTER CHAIN CASE...

Page 38: ...ERTER CHAIN CASE 05 37 THUNDER JET 1975 No Sno Jet Description Qty 42 050775 Ring Retaini ng 1 43 060366 Washer Bearing 3 44 181541 Pill ow Block Flange 1 45 770005 Bearing 1 46 050726 Shaft Converter...

Page 39: ...38 BRAKE Q 0 I cD 0 0 D i JJ J...

Page 40: ...Cable 1 2 181847 Brake Assembly 1 3 070010 Puck 1 2 1 4 070009 Puck 5 16 1 5 181895 Cap Screw Sleeve and Nut 1 6 912830 Washer 2 7 916709 Star Washer 2 8 910100 Cap Screw 5 16 18 x 1 2 2 9 070041 Cle...

Page 41: ...40 _ Ic SUSPENSION...

Page 42: ...rack Guide 48 16 060292 Track Guide 24 17 181455 Set Screw 2 18 181445 Washer 2 19 912873 Lockwasher 2 20 910104 Cap Screw 5 16 NC x 1 0 2 21 050223 Washer 8 22 181432 Carrier Shaft 2 23 18 1466 Outer...

Page 43: ...42 FRONT SHAFT i 10 I 10 Vl...

Page 44: ...0223 Washer 1 3 050197 Sprocket 36 Teeth 1 4 914154 Carriage Bolt 5 16 18 NC x 1 0 6 5 181271 0 Ring 1 6 181273 Flange Gasket 1 7 770006 Locking Collar 2 8 912725 Nut 5 16 18 NC 6 9 181953 Drive Sproc...

Page 45: ...44 00 8 SKI 11 4 I...

Page 46: ...Boot 1 6 914087 Mach Screw 10 24NC x 1 00 2 7 912827 Washer 2 8 181363 Ski Weld 1 9 912716 Locknut 10 24NC 2 10 912739 Locknut 7 16 NF 2 11 910163 Cap Screw 5 16 NF x 3 5 2 12 910363 Cap Screw 7 16 N...

Page 47: ...46 I STEERING 13...

Page 48: ...her 1 4 2 11 912738 Locknut 1 4 NF 2 12 181497 Bushing 1 13 181306 Tie Rod 1 14 181282 Tie Rod End 1 15 090 163 Steering A rm 1 16 912740 Locknut 3 8 NF 6 17 91283 1 Washer 3 8 12 18 914378 Locknut 3...

Page 49: ...48 G CDCD BODY SEAl...

Page 50: ...Retaining Ring 1 16 181802 Steering Stanchion 1 17 181468 Steering Brace 1 18 181671 Rivet 8 19 100733 Frame 1 20 181650 Wear Strip 2 21 916674 Rivet 18 22 140384 Seat Foam 1 23 140383 Seat Cover 1 2...

Page 51: ...50 BODY SEAT l I I 7 I...

Page 52: ...ivet Nose Pan Spacer 2 47 916687 Rivet Nose Pan 13 48 181485 Main Frame L H 1 48 181198 Main Frame R H 1 49 181972 Nose Pan Fiberglass 1 50 791234 Fuel Pump Bracket 2 51 916419 Rivet 2 52 181822 Belt...

Page 53: ...52 HOOD DASH E 20 19 XU...

Page 54: ...4 181985 Acoustical Foam 1 15 181983 Decal Stripe 2 16 181986 Acoustical Foam 1 17 181932 Plate Hood Pin 2 18 916549 Rivet 8 19 181955 Lanyard 2 20 181931 Hood Pin 2 21 120831 Hood Guide 2 22 916407 R...

Page 55: ...54 FUEL SYSTEM i rI 7 T I I I 30l I...

Page 56: ...4 20 x 75 2 11 110099 Spring 1 12 410052 Fuel Lin e 7 3 8 x 1 4 I D 1 13 791232 Assembly Choke 1 14 791199 Fitting Fuel Tank 1 15 410052 Fuel Li ne 8 x 1 4 I D 1 16 181861 Cap FUE Tank 1 17 18 1834 Pi...

Page 57: ...ol Kit Complete 1 810018 Socket 13 21 MM 1 810019 Wrench 22 29 MM 1 810020 Open Wrench 13 17 MM 1 810022 Pliers 6 Standard Yamaha 1 810023 Screw Driver Handle 1 810024 Double Bit 1 810025 Single Bit 1...

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