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Disclaimer: 1. Let me first start with the fact that I am
NOT a mechanic. I have been working on motorcycles and scooters for
a long time and know a little about what I am doing. I simply take
pictures for other people to use as a guideline to help them modify their
own motors. Any modifications you perform are done completely at
your own risk and liability.
2. Tampering with your motor in any way may void your warranty.
Make sure this is a sacrifice you are willing to make before you begin
working on your own vehicle.
3. Before you begin, read this ENTIRE article from start to
finish so you know exactly what is involved and what steps are required
to properly complete the procedure. Also make sure you have a nice
clean area to work in.
4. This example was performed on a 2006 Sachs MadAss 50cc
automatic.
5.
ALL bolts and socket head cap screws are in metric! Don't try to work on
your vehicle if you don't have metric tools, you will just wind up messing
up the heads. |
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| The OEM exhaust
on the MadAss is really a nice looking exhaust. Unfortunately,
it is also very restrictive. Small inner diameter coupled with
the muffler characteristics, it is robbing your bike of some serious
power. Factor in a larger displacement engine like our 150cc
Lifan, and this exhaust simply will not do. So we scoured the
internet for a replacement. At the time of ordering, there was
simply only one option available. The
ASS
PIPE available through
Moto-Scoot. |
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| Now I must say,
for being the only pipe available, I am very pleased with the style,
sound and performance. The very deep growl sound of this
exhaust definitely gets some heads turning. Not to mention the
large ID on this thing, it simply lets the air our out of it! |
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| Start by
removing the flange off the stock pipe. |
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| Next remove the
attachment springs and the bolt under the seat. |
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| Slide the pipe
out of the muffler and remove it. |
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Now, you are stuck with the muffler and your tail lamp and turn
signals hanging out there all by themselves. We eventually
made a custom tail lamp / turn signal unit for our bike, but for
temporary purposes, we unbolted the tail lamp assembly from the
muffler and then removed it. We then disconnected all the
wiring from the tail lamp assembly under the seat so we could remove
the small pipe that the wires run in around the muffler. Once
the pipe was removed, we bolted the entire tail lamp assembly to
where the exhaust was mounted |
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| We had to add a
nut and some washers in between the mounting bracket and the tail
lamp assembly. |
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| It isn't the
most glamorous thing, but is very functional, and doesn't look all
that bad. Tuck the extra wire length up under the seat and zip
tie everything back into place. |
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| Now our new Ass
Pipe is attached where the brake pedal is mounted. So we had
to remove the bolt holding the brake pedal in place. Slide the
bolt into the pipes bracket and replace the bolt. |
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| Place your
exhaust gasket on the pipe and slid it up into the motors recessed
hole. Place the flange over the bolts and tighten them up.
We had to make a few minor adjustments to the pipe as we were
tightening things up to get the pipe in close to the motor as we
could while keeping plenty of clearance for the brake lever. |
