Advance Key aka Rocket Key
This is the biggest bang for your buck when it comes to upgrading your
scooter or go kart (or other). The timing key aka rocket key advances
engine timing 7 degrees which advances your spark. What does this do?
It adds top speeds of 2-3 mph and about 10% more torque (pulling power).
This key will fit any 33cc, 36cc, 43cc, 49cc, and 52cc Hausheng engine.
These motors are the most common motors used on scooters, pocket bikes,
mini choppers, and go karts in the USA market.
|Above is a
stock or regular "crankshaft key", that comes on your scooter
from the factory. It is used to align the flywheel on the
Advance Key shown above
Notice the "off set".
This off set aligns the flywheel in a 7 degree advance position
Why 7 degrees?
7 degrees advanced timing will provide the most power increase and
maintain the "streetability" of your scooter for everyday use. Advance
timing setting above the magic 7 degree mark are likely to make your
engine run hot which will reduce engine life greatly.
Displayed below is a typical crankshaft with the Advance Key installed.
Notice the upper portion of the key is off set from it's stock position
and will now align the flywheel in an advanced timing position.
The advanced timing position delivers spark to the
spark plug at a slightly earlier time in the
combustion part of the engine cycle making for a hotter and more
complete explosion each power cycle. This one item will get you a 2-3
mph increase in top speed.
Fits these items sold on this site
ScooterX Dirt Dog, X-Racer,
Baja, Powerkart and SkaterX.