Today's US820 engines from U.S.
Motor Power, Inc. continue a 40 year history of providing reliable power for
demanding applications. U.S. Motor Power engines are simple to use, durable,
lightweight and versatile.
When the requirement are a low
weight to horsepower ratio and mounting flexibility in a modern compact power
package, your best solution is our US820 industrial engine. U.S. Motor Power
engines offer maximum horsepower per pound and per cubic inch of displacement,
self-lubrication, and a diaphragm pump carburetor for complete mounting
flexibility. The results dependable performance under even the most adverse
conditions.
90 Day Warranty on new engines!


We have been working with US motor
power for sometime now, and the latest and greatest thing we did was to get the
price down on new engines. If you are interested in a new 820 HO (high output) engine, they will be $625 plus shipping. H.O. features: has Hemi-head, go-cart
reeds, 1" carburetor and elbow, PVL ignition, heavy-duty starter cup,
D-ring Techumseh pull starter, lighting coil, .062 head gasket, and a few other features.
We do NOT use the compression release head because I don't believe it helps that
much in starting, and it can create a problem if the valve gets carbon on it and
causes air to leak into the cylinder, giving you an extremely lean fuel mixture.
The HO starts just as easily as a stock 820 engine. It dynos at 10 HP, compared to a stock Rokon engine at 7 HP.
It will run a plunger bike down the road at
40 m.p.h. You can beat a Kohler bike that is in 3rd gear while the 820 is in 2nd
gear.
Figure 1

On Albion transmission bikes, you have to modify the frame to look like the above
picture in Figure 1. The engines are also available without the
lighting coil.
Engines include new air-cleaner assembly with air-cleaner, voltage regulator, and
copper
exhaust gasket.
These engines normally sell from Rokon for $825, and that's for the 7 H.P.
version, so don't be so quick to cut up your old faithful! We
have quite a few of these engines out in the field and we've had excellent
feedback at this point. If you are thinking of installing a Honda 110 engine in your bike, don't. This will depreciate the value of your bike. Keep it right.