Specifics: Top 80
Notes and references to this specific engine.
For the latest access to Top 80 parts see our
Resources Page. There has been an increase in availability of Top 80
parts since 2008 and Top 80 equipped machines.
See also the Chapter 12 article on
See also an article on Rebuilding the Top 80
Which prop you choose depends on which redrive you have.
Spark Plug Selection
Thanks Dave Moore and Brian Del Campo with this information.
The NGK BR9ES is the most common plug. Do not combine it with a
resistor cap--the spark will be too weak.
Visit the Top 80 parts site listed above to find the appropriate
bearing names. There are 4 bearings in two sizes. One of each size must be
sealed since it is exposed to the outside.
the Top 80 Redrive.
Top 80's use the WG 8 Carb. It's unique in that there is only one
mixture screw which primarily controls the idle circuit. Since it does
offer a way to compensate for altitude, you will not be able to lean it
out when flying from higher elevations. However, having flown this motor
from 7000 feet I can say that it isn't a show stopper for lighter
pilots. At the time, I weighed about 160 pounds and was flying a small
Top 80's bury the coil deep in the guts.
Here is how to change it out.