Harley Davidson Evolution Leak

Harley Davidson Touring.

Harley davidson evolution leak. Although the Evolution was praised for its reliability keeping the engine at its operational peak required regular oil changes every 2500 miles. The Evolution engines not only carried forward Bill Harleys original ideas but they also solved the problems that had beset the earlier Harley-Davidson engines problems caused by heat cooling gasket sealing and oil leaks. Let the engine idle in place for 3 to 5 minutes to warm the engine oil supply.

The valves are inside the rocker box. First however we would suggest checking for a Harley intake leak. Fuel filter is a logical thought.

In my opinion this could have been easily fixed. Oil leaks were becoming a big problem with both the consumer and the EPA. The Evolution engines had the metallurgy sorted out the designs refined and were able to be built to far finer tolerances than had previously been possible.

To fix the problem youll have to pull the heads and the cylinders off. The Harley Davidson Z90 motorcycles were actually a small series of HDs motorcycles built between the years of 1973 and 1975 by Aermacchi. This article applies to the Harley.

The Harley Davidson Z90 motorcycles got famous as the ride of Kelly Leak which was played by Jackie Earle Haley in the Bad News Bears. While your bike is idling mist the area around your intake flanges with brake clean. Symptoms usually develop just after working on or around the carburetor.

Now you can run the compression and leak down test to evaluate whether or not the top end andor heads need attention which I suspect they dont. Harleys dont leak oil they mark their spot. In 1984 Harley-Davidson introduced the Evolution engine a replacement for its Shovelhead engine.