Crate to first ride, in order:
- Open the crate and check nothing is bent or missing.
- Fit the front wheel and the handlebars, then go around every bolt with a wrench. Tools are in the box.
- Mix fuel at 25 to 1, which is 5.12 oz of two stroke oil per gallon.
- Screw the limiter in so the bike will barely outrun a walk.
- Gear the rider up, start it, and take them somewhere flat and boring.
Most families have it together in 20 to 30 minutes. Some do it in 10.
What actually arrives
The bike ships sealed in its factory crate exactly as it reaches us, about 90% assembled from the factory. We are an independent retailer, so we do not open it, assemble it, tune it or modify it. You finish the front wheel, the handlebars, a few bolts and the fluids.
Inside the crate you will find the frame with the engine already mounted, the wheels, the handlebars loose, the seat, the fasteners and cable connectors you need, the tools, and the owner's manual.
Look everything over before you pick up a wrench. Anything bent, cracked or missing, photograph it and text 623 320 8984. For the first year we take the claim to the factory on your behalf and get the replacement sent free.
The full walkthrough with photos is free at manual.pluggedby50cc.com.
Assembly, step by step
Front wheel
Slide the axle through the hub and the fork legs, fit the spacers back exactly where they came from, and torque the axle nut down properly. This is the one fastener on the bike you do not want merely snug. Spin the wheel before you move on. It should turn freely with no rub on the brake disc and no side to side wobble.
Handlebars
Set the bars in the clamp, square them to the front wheel, then tighten the clamp bolts evenly in a cross pattern so the gap stays the same top and bottom. Snug, not stripped.
Now turn the bars lock to lock. No cable should go tight, snag or get pinched at either extreme. If the throttle cable pulls at full lock, reroute it before you go further.
Seat and remaining bolts
The seat locates on the frame and clicks down on its catches. If it does not sit solid, lift it and line it up again rather than forcing it.
Then go around the whole bike with a wrench: engine mounts, footpegs, sprocket bolts, axle nuts, brake caliper bolts, bar clamp. Every one of them. Do it in one direction around the bike so you do not skip any.
Tires and chain
Set tire pressure with a gauge. Around 15 to 20 PSI is a sensible starting point for a light rider on dirt. Whatever pressure the tires arrive at is not worth trusting.
Check the chain has one to one and a half inches of up and down play halfway between the sprockets. Adjust at the rear axle adjusters, keeping both sides equal so the rear wheel stays straight. See how to set dirt bike chain tension if it needs work.
Brakes and the kill switch
Squeeze both levers. They should firm up in the first half of the travel and lock the wheel. Check the kill switch cuts the engine and that the tether pulls out cleanly. Test the tether once with the engine running, before your kid ever sits on the bike.
Fuel: the part you cannot get wrong
This is a two stroke. There is no oil in the crankcase, so every bit of lubrication the engine gets comes from the oil mixed into the fuel.
25 to 1. That is 5.12 oz of two stroke oil per gallon of 87 octane unleaded.
Oil into a clean, labelled gas can first, then the gallon of gas on top, then cap it and shake it for twenty or thirty seconds. Pouring oil on top of gas does not blend properly no matter how long it sits. Shake the can again every time before you fill the tank.
Straight gas will seize the engine, usually fast, and that is not a defect so it is not a warranty repair. Mixed fuel goes stale in about 30 days, so mix a gallon at a time. Every container size is in our 25 to 1 fuel mix chart.
First start
Do this outside on level ground, away from fences and parked cars, with the tether attached.
- Open the fuel valve, usually under the tank. Give it a few seconds to fill the carburetor.
- Kill switch to Run.
- Choke on for a cold engine.
- Pull the recoil handle smoothly until you feel it come up against compression, then pull hard and straight. Do not yank it to the end of the rope.
- Two or three pulls is normal on a first start. Once it fires, let it idle.
- After 30 seconds or so, push the choke off and let it warm up another minute before anyone rides it.
If it will not go after five or six pulls, stop and let it sit a minute rather than flooding it. The full sequence, plus what to do with a flooded engine, is in how to start a 50cc dirt bike. If it still refuses, work through the reasons a 50cc will not start.
Break it in gently
A new two stroke wants a few easy tanks before anyone holds it wide open. Vary the throttle, keep it off full for long stretches, and let it cool between sessions. That suits a beginner anyway, since they should not be near full throttle in week one. Details in how to break in a new two stroke.
Set the limiter before they ride
Fully open, the bike does 32 mph. That is far too much for a first session.
There is an adjustable limiter screw on the carburetor that caps how far the throttle opens. Screw it in until the bike will barely outrun you walking beside it. Let them learn balance, turning and braking at that speed, then back it out a quarter turn at a time over weeks as their control improves.
Which screw, and which way it turns, is covered in our guide to the 50cc dirt bike speed limiter.
Gear, before the engine ever starts
Helmet, goggles, gloves and over the ankle boots, every ride, no exceptions. Long sleeves and long pants. Get the helmet fitted rather than bought a size up to grow into, same as the bike.
The first ride
- Flat, open, soft ground with nothing to hit and no faster riders around.
- Practise stopping before anything else. Both brakes, gently, together.
- Let them creep at walking pace until the throttle stops being a surprise.
- Stay close but do not hover over the bars. Set boundaries they can see.
- Keep it to 20 or 30 minutes and end while they still want more.
These are off road machines. Not street legal, no title, no plate, so they get trailered to wherever you ride.
Common questions
How long does assembly take?
Most families have it together in 20 to 30 minutes, sometimes 10. It is the front wheel, the handlebars, a few bolts and the fluids, and the tools come in the box.
What tools do I need?
The ones in the crate cover the assembly. A socket set and a tire pressure gauge from your own garage make it quicker and let you check torque properly.
What fuel does it take?
Regular 87 octane unleaded mixed with two stroke oil at 25 to 1, which is 5.12 oz per gallon. Not 40 to 1, not 50 to 1, and never straight gas.
How fast will it go, and can I slow it down?
32 mph with the limiter fully open. The limiter screw on the carburetor caps it anywhere below that, so a beginner can start at walking pace.
What age is this bike for?
Roughly 5 to 13, with a seat height of about 24 in and a 170 lb rider limit. It is automatic, with no clutch and no gears, so there is nothing to shift.
What if I get stuck?
Text 623 320 8984 with a photo. Local to Phoenix or Tempe, text first and you can pick the bike up in Tempe instead of shipping it.
Ordering
Free shipping to all 50 states, same day dispatch, 2 to 5 business days, tracking on every order. See what is in stock at all 50cc and electric dirt bikes.
Plugged by 50CC is an independent retailer. We do not manufacture, assemble, modify or service the bikes we sell. Every bike ships sealed in its factory crate exactly as it reaches us, about 90% assembled from the factory, and final assembly and setup are completed by the buyer. Off-road use only. Riders under 18 should always be supervised by an adult.