BF100

Does the pilot screw adjust th

Does the pilot screw adjust the actual mixture? Can I tweak this when I go to a high altitude lake? Thanks.

"Here is some verbage from a H

"Here is some verbage from a Honda Bulletin that should answer your question...

At high elevation, the carburetor air-fuel mixture will be too rich. Performance will decrease and fuel consumption will increase. If an engine will be used regularly at an elevation above 5,000 feet (1,500 meters), change the carburetor main jet to improve the engine performance and exhaust emissions. The parts information lists two optional main jets for each engine. For elevations above 5,000 feet but below 8,000 feet (1,500 to
2,438meters) use the first size smaller jet. For elevations above 8,000 feet, the second
smaller jet should be used. Even with carburetor modifications, engine
horsepower will decrease about 3.5% for each 1,000-foot (300-meter) increase in
elevation. Without carburetor modifications, there will be a larger decrease in horsepower. When the carburetor is modified for high elevation operation, the air-fuel mixture will be too lean for low elevation use. Operation at elevations below 5,000 feet (1,500 meters) with a modified carburetor may cause the engine to overheat, and result in serious engine damage.

If the engine is not emission regulated (no limiter cap on the idle mixture screw), you may adjust the and screw for best idle performance. If the engine is regulated, you may turn the limiter on the idle mixture screw clockwise to its limit, but do not remove the limiter cap. Removing the limiter cap and setting the idle mixture screw at other than the specified position listed in the shop manual is considered tampering.."

Thanks Mike

Thanks Mike