Mopeds are a fantastic way to travel around town at 100 miles to the gallon. Although fun to ride, most mopeds have a top speed of about 30mph, which is usually just not enough for most people to keep up with traffic. Mopeds often lack the raw power needed to travel in-town. Fortunately, mopeds are made to be modified and there are performance upgrades you can do that will increase your scooter's top speed and acceleration, giving you the power needed to keep up with traffic.
- Skill level:
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Things you need
- Honing tool
- Aftermarket muffler
Drill 3 holes into your moped's air box cover. The air box cover is located right next to the carburettor, and it controls how much air goes into the engine. Drilling holes into this cover will allow more air to get in, producing a richer fuel mixture, giving you better acceleration.
Purchase a larger carburettor and bore your cylinder. A larger carburettor will give your engine more fuel, which will increase performance. In order to place this carburettor on your moped, however, you will need to bore out your cylinder to fit the carburettor. This can be done using a drill and a honing tool.
Replace the stock muffler and put in an aftermarket one. Aftermarket muffles increase the pressure build-up on the piston, which will drastically increase acceleration and top speed when upgraded successfully.
Perform a general tune-up of your moped. If the stock parts aren't going at their best, then you will lose performance. Check the air pressure in the tires, change the oil, and replace any gaskets in the engine. Simple repairs like that can make the world of difference in performance.
Tips and warnings
- You can purchase a "big bore" kit which will include everything you need to successfully install a larger carburettor in your engine.
- Fiddling with your moped is always risky, so keep this in mind when deciding to pursue moped modification.
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