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FOR MODEL: 42101
Read Important Rules for Safe Operation
YOU MUST DEPRESS THE BRAKE PEDAL
BEFORE THE ENGINE WILL START
This vehicle is sold for OFF-ROAD USE ONLY. Before operating
this vehicle, read all the instructions for safe assembly and
operation as well as the instructions governing the engine
and other portions of the vehicle. Pay close attention to all
caution and warning labels on the Go-Kart.
NOTICE
before Operating Vehicle
NOTICE
WARNING
For
Replacement
Parts Call:
1-888-926-6554
06216 Revision A

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Summary of Contents for Yerf-Dog 42101

  • Page 1 FOR MODEL: 42101 NOTICE Read Important Rules for Safe Operation before Operating Vehicle NOTICE YOU MUST DEPRESS THE BRAKE PEDAL BEFORE THE ENGINE WILL START WARNING This vehicle is sold for OFF-ROAD USE ONLY. Before operating this vehicle, read all the instructions for safe assembly and operation as well as the instructions governing the engine and other portions of the vehicle.
  • Page 2: Rules For Safe Operation

    Modification of this vehicle or removal of any original equipment or safety decals may render the Never remove any chained guard, or belt clutch guard. vehicle unsafe or illegal. These covers are for the operators protection. Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 3 Always perform a Pre-Ride Inspection before starting the engine. See Pre-Ride Inspection in the manual. The custom brush guard assembled on this vehicle is for deflecting loose vegetation and must not be removed. Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 4 The Owner Or Operator Assumes All The Risks Incident To Or Arising Out Of The Operation Of This Vehicle. Failure To Follow And Comply With All Warnings May Cause Serious Injury Or Death. Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 5: Limited Warranty

    ENGINE Your engine manufacturer (Howhit) warrants the parts for this engine for 12 months from the date of purchase. Yerf-Dog Customer Service will facilitate any warranty questions that you may have. For questions or parts please call 1-888-926-6554. PART 2...
  • Page 6: Pre-Ride Inspection

    4. Tires – Verify correct air pressure in tires. 5. Drive Chain and Sprockets – Check condition, tension, lubricate as necessary. Check sprocket for broken teeth and loose fasteners. Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 7 To avoid skids while traveling on slippery terrain, the rider must exercise a high degree of caution. Turning maneuvers on slippery terrain are more hazardous than those performed under full traction and must be done slowly. Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 8: Preventive Maintenance

    Rear Wheel Replacement – Loosen the 4 lug nuts in order to remove the tire. For Engine Service instructions, see the Drive Train Service Section. For Replacement Parts Please Call: 1-888-926-6554 (U.S.) Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 9: Nuts And Bolts

    Bolt – 5/16" x 2 1/4" Bolt (PN 700996) SEAT STEERING WHEEL Bolt – 5/16" x 1" (PN 2200040) Bolt – 5/16" x 1-1/2" (PN 2200030) Bolt: 1/4” x 1-3/4” (PN H32503W) Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 10: Suspension Maintenance

    6. Turn the SHOCK ADJUSTMENT HOLE clockwise around the SHOCK to increase shock absorption. 7. Experiment with the adjustment until the desired effect is attained. 10 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 11: Battery Installation

    Follow with milk of magnesia, beaten eggs or vegetable. Eyes – Flush with water for 15 minutes and get prompt medical attention. KEEP OUT OF THE REACH OF CHILDREN 11 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 12 • Once battery is firmly seated in gray tray with rubber mat under it, attach the red positive wire to the red positive terminal on the battery. (see figure 29) FIGURE 29 12 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 13: Battery Charging

    (-) of the battery. pole of the battery. Note: Always keep the battery clean. Apply dielectric grease around the battery terminals to prevent corrosion. 13 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 14: Battery Replacement

    • Always shield eyes with protective eyewear when working around battery acid. • Battery acid is poisonous and can cause severe burns. • DO NOT smoke around batteries and keep away from open flame. 14 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 15: Assembly And Installation Instructions

    Locate Center Cap in the seat belt hardware bag Place Center Cap over center of steering wheel. Attach with phillips head screw. 15 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 16 Note: Be careful not to over the rail with the tighten bolts. adjustment lever, press outward on the lever. FRONT OF SEAT Fixed Seat Rail Adjustable Seat Rail (06243) (06242) 16 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 17: Cargo Rack

    (4) 5/16” nylock nuts. SHOULDER BELT ATTACHMENT Attach driver shoulder belt to the Cargo Rack using (1) 5/16”x 2-1/4” bolt, (1) 5/16” Nylock nut (1) 5/16” washer. 17 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 18 CROSS MEMBER ATTACHMENT Attach using (2) 5/16” x 1-3/4” bolts Attach using (2) 5/16” x 1-3/4” bolts (H33135W) and (2) nylock nuts (HH1256T). (H33135W) and (2) nylock nuts (HH1256T). 18 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 19 To properly check for leaks - fill tank with fuel, crank engine and let it run for a few seconds to get fuel into the fuel line, kill engine, and then check for leaks. 19 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 20 Plug the RED wire (one from each headlight) into the female ends of RED splitter. Plug the BLACK wire (one from each headlight) into the female ends of BLACK splitter. 20 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 21 FOAM PADDING PLACEMENT Attach foam padding (P/N 05597) to the go-kart as shown in the illustration. Estimated assembly time: 15 min 9” 17” 13-1/2” 11” 13-1/2” 13-1/4” 27-1/2” 27-1/2” 21 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 22 Estimated time: 25 min 1 decal 1 decal Place on frame facing towards the rear of the go-kart 1 decal 2 decals 2 decals 2 decals 2 decals 22 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 23 02451 ASSY;WHEEL;FRONT;TURF 06203 TUBE;FRONT;RIGHT;BGUARD; SILVER 06209 TUBE;BRUSH GUARD;CROSS;SILVER 06206 TUBE;FRONT;LEFT;BGUARD;SILVER 05547 HEADLIGHTS;FRONT 06219 WLDMT;CHASSIS COMPLETE; GREEN 05597 WRAP;VINYL;FOAM;KIT 05595 SEAT;BUCKET;ROTOCAST 06288 SPINDLE; PASSENGER SIDE 06287 SPINDLE; DRIVER'S SIDE 23 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 24 EX. PIPE ASSY. 05860 AIR CLEANER 05861 ELEMENT COMP AIR CLEANER 06049 FILTER;FUEL;OPAQUE 06069 CLAMP;WIRE;FUEL FILTER 05795 MUFFLER CAP 05799 GASKET, EX. PIPE 05706 BRAKE DISC 05707 DRIVE CHAIN 24 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 25 05969 CLEVIS;BRAKE;ROD 06055 SPRING;BRAKE;SWITCH H55030W SPRING;COMP;1/2X3.0;CZ H91470W RING;RETAINING;1/4";CZ H91480W COLLAR;7/16 BORE X 7/8 O 05737 CLEVIS;BRAKE;8MM;DRV TRN 05710 BRAKE INTERLOCK SWITCH 04147 SPRING;BRAKE;RETURN 05637 PLATE;BRAKE;MASTER;CYLINDER 05639 PLATE;BRAKE PIVOT 25 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 26 ROD;BRAKE;THRD BOTH END; 05812 ASSY;STEERING;WHL;12-3/4 06350 STEERING SECTION 05672 PEDAL;THROTTLE;1-1/4";32 06408 PEDAL;BRAKE;1-1/4" 02250 ENGINE START SWITCH (RED) 06237 SHORT BRAKE ROD 06238 BRAKE PIVOT MISCELLANEOUS 06217 BAG;HDWR;SEAT;BELT/RAIL; 06215 ASSY;OWNERS PACKET 26 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 27 27 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 28 28 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 29: Model Identification

    • API Classification GL – 5, GL – 4, GL – 3 (SAE 80W – 90) gear oil should be used. Note: SAE is an oil weight viscosity classification standard. 29 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 30: Starting The Engine

    Gasoline powered engine exhaust fumes are poisonous and can cause loss of consciousness and / or death. Avoid prolonged inhalation. SWITCH ON 30 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 31: Break-In Procedure

    Yearly Brake performance Torque of nuts and bolts Air filter Carburetor Spark plug Drive Chain C,A,L Brake fluid Replace gearbox oil Battery Engine oil Valve clearance of engine 31 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 32: Maintenance And Tune-Up Procedure

    • Ensure that the rear brake pads are in good condition. • Check the brake rotor for abnormal wear. • DOT 3 – 4 brake fluid 32 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 33: Air Filter

    Before and during service, inspect the element for rips. A torn element must be replaced. Make sure that the element is seated properly and no foreign material can pass by it. 33 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 34: Periodic Maintenance And Tune-Up Procedures

    • Shut off engine and check the oil level with dipstick, do NOT screw the dipstick in when making this check. Add oil if necessary to reach safe amount. 34 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 35: Final Gear Oil

    It is recommended to warm the engine for 10 minutes or more before draining final gear oil. 35 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 36: General Introduction

    Loosen the jam nuts. Turn adjustments nut clockwise Leave 3/8 – 3/4 in. deflection in chain. to remove deflection in chain. Tighten jam nuts to 40 ft / lbs. 36 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 37: Troubleshooting

    The following information is provided to help you identify probable question you may have out the operation of your go kart. See your dealer with any additional question you may have. 37 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 38 38 - Revision A For parts or service call 1-888-926-6554 • www.yerf-dog.com...
  • Page 39 As the small off-road engine owner, you should however be aware that Yerf-Dog may deny warranty coverage if your small off-road engine or a part has failed due to abuse, neglect, improper maintenance or unapproved modifications.

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