Because of their small size, moped engines are much more sensitive to stale fuel and fuel impurities than a car. Because mopeds are often driven short distances and sometimes stored for extended lengths of time, their batteries are much more susceptible to being drained.
If you are a new rider, take heart! Every first time moped owner goes through a learning process. A moped is not a car. As such, they respond to cold mornings, humid afternoons, and extended periods of time sitting in a garage differently than your car does.
If you're a new rider and your brand new moped doesn't start, your first inclination may be to blame the moped. On behalf of all moped repair shops worldwide we would like to say "don't take this the wrong way, but it's probably not the moped, it's probably you." We say this because experienced riders rarely, if ever, call about problems starting their moped.
Trust us on this one; as you log more miles and get a "feel" for the engine, this problem goes away and soon you will feel a cosmic connection to your moped. Your moped will practically start via mental telepathy.
In the springtime, we get lots of calls from new riders. The problem is almost always due to stale fuel (which can clog up the carburetor) and/or a dead battery. To solve these problems, you'll need to have a mechanic clean your carburetor and you'll probably need to purchase a new battery. Neither service is covered under warranty.
An easier and more cost-effective solution is "winterizing" your moped before storing it. This simply involves pouring about an ounce of fuel stabilizer into a tank of fresh gasoline, and disconnecting the battery.
If you want your battery to love you forever, plug the battery into an inexpensive "trickle charger". This device turns itself off when the battery is fully charged. Over time, when the charge drops to a certain level, the trickle charge turns back on. This process serves to "cycle" the battery over the winter, and in the spring, your battery will be stronger than it was in the fall.
And when the sun starts shining, we say ride your moped...a lot! The more you ride your moped, the happier it is. Putting miles on the moped keeps fresh fuel flowing through the carburetor and keeps your battery in tip top shape. And if you keep up with scheduled maintenance and oil changes, your moped will run smoothly for years to come.