49CC/50CC Bike Engine, 1.9kw/7000rpm 2-Stroke Engine&Transfer Motor W/Gear Box Air Filter & Pull Rope Start and Electronic Ignition System Mini Motorbike Engine for Mini Pocket Dirt Bike ATV/Scooter

The media could not be loaded. Works great on my mini dirt bike for the kids. Installed in about 20 minutes. Put gas in the tank and it fired right up on a cold day without choking it. We’ve put about 6 hours on it now and it still runs really strong. It was installed on a coolster 49cc bike. My wife and I have ridden it a bunch ourselves and after about 4 hours we burnt the clutch up. I bought a 75mm heavy duty two paddle clutch for $11 and installed that in about 20 minutes also, including setting the tension on the chair afterwards. The new clutch (red spring) grabs very early in the rpms which my kids like. Overall it’s worth the fun, considering what it costs to go to a go kart track nowadays.

Good price, exactly what I ordered.Looks great, performs great! Did take some time to receive it, but it is worth the wait and every penny!If I ever need another replacement, I will buy again!

I bout two of these engines, the first had broken bolt in flywheel, my 6yr old was riding and flywheel came off with 10 minutes of first ride, I took it at a lost because it was too late by time we finished the project bike and noticed the problem. I ordered a second and it came with broken mounts, crushed air filter and smells of gas like it was a used return and just slapped in a box and shipped back out. I'm still dealing with the seller on a return but they obviously do not care at all about the issue. I will update this if the issue is resolved but for now they can have 1 star since there is no option for 0 stars. Buyers beware!

I swapped out a busted up motor in a dirt bike I bought and it started right up and was good to go. Good price and seems like a decent motor. My daughter rode it and I tried it and carted my around and I’m 200lbs. No mods or anything done to it, just stock.

This motor is badass. Right out of the box it fired up second pull and runs like a raped ape. I'm 150 pounds and it gets me going 40 mph. Highly recommend.

A good engine for the price.I used it on a goped.It lacks the power of similar 49cc 2 strokes.Unfortunately it uses a float type carberator, which mean it requires gravity to deliver fuel to the carb. So the fuel tank must be above it.It continuously stalls once it warms up.

The media could not be loaded. Installed this engine straight out of the box on the bike no carb adjustments or anything needed and it fired up on the 2nd pull and runs great!!

I like the product but haven't been able to use it yet, reason being I didn't check to order the sprocket on the extended drive. On that note since trying to ask the manufacturer again through their messaging app hopefully they see this. The question: can I buy a replacement sprocket on the extended drive that will work with standard bike chain.