Mopeds are quickly becoming one of the best ways to travel. Whether it's just around town, or across town, either way, you can get there on a moped. Unfortunately, due to state regulations, many mopeds are restricted in more ways than one. This can reduce acceleration, top speed and horsepower on your scooter. If you would like to make your moped both a quicker and a faster ride, you can remove these restrictions holding the engine back from its full potential. Learn how to remove them from the muffler.
Things You'll Need
- Metal file
Remove the nuts and bolts holding the exhaust pipe to the moped.
Grind off the bolt heads holding the muffler flange to the muffler pipe. Grinding these off will reveal the actual bolt heads, which you will be able to remove with a wrench to separate the two muffler pieces.
If there is a little pipe extending past your muffler pipe, cut it off using a sawsall. Be sure to leave about 1 inch of metal protruding from the side of the muffler--you will need this to crimp the muffler pipe closed. Note: Only certain moped companies include this little pipe. Do not mistake this little pipe for the main muffler.
Cut off the now-exposed restrictor coming out of the flange part of the muffler. The restrictor will look like a little pipe coming out of the section that you just removed the bolts from. File any burrs on the pipe that you just cut off, and be sure to remove any metal chips inside the pipe before placing the mufflers back together.
Place the 1 inch of metal protruding from the side of the flange into your vise, and crimp it closed. Take your hammer, and hammer the crimped metal to the side of the muffler. You may want to also take a grinder to smooth the whole crimp over.
Place the flange and the main muffler pipe back together, and put your new nuts and bolts into the muffler. Replace the unrestricted muffler back onto your moped.
Tips & Warnings
- If you have some money, a much simpler way to bypass this process it to just buy a performance exhaust. These $50 aftermarket exhausts already have the restrictor washers gone, so there's no need to open or close any metal. All you need to do is attach the new exhaust to your moped.
- Tampering with your moped goes against any warranty it might have on it; keep that in mind while you are taking apart your moped.
- Photo Credit Jerry Kobalenko/Photodisc/Getty Images
How to Make a Moped Go Faster
Legally, a moped cannot exceed 30 or 35 mph (depending on where you live). Yet some moped motors are capable of much...
How to Remove the Flow Restrictor in a Shower Head
A shower head flow restrictor limits water flow, which can cause reduced water pressure output. You can remove it to improve performance,...
How to Make a Moped Muffler Loud
Mopeds can be great vehicles for getting around town. These machines usually average upwards of 100 miles-to-the-gallon. Although the are notoriously considered...
How to Remove a Back Tire on a Moped
Whether it's because of a flat tire, or you receive a new moped tire, you will need to remove the original back...
How to Remove a Wheel for a Moped
Whether you have a flat tire, your wheel is rusted, or you just need to access the internal components of your moped,...
How to Unrestrict a 50cc Moped
50cc mopeds have a restriction placed on how fast they can drive, which helps keep smaller moped from travelling too fast for...
How to Adjust Your Scooter Yourself
Scooters come stock out of the factory with restrictions placed on them. Most states allow scooters or mopeds to travel no faster...
How to Take the Top Off of a Moped Carburetor
Taking apart a moped carburetor starts with taking the top off. Learn about moped maintenance in this free video.
How to Take Apart a Moped Carburetor
Start moped carburetor maintenance by learning how to take on apart in this free video.