Another friend has had several deadstick landings in the last two or three years in aircraft with these two-strokes
. The engines failed mainly because of seizing from loss of lubrication.
became four-stroke side-valves,and the complication factor went up to the tune of one camshaft plus two valves per cylinder.
The North Walbottle rider's hopes of making the finish line were dashed 13 laps into the race at Brno through a loss of power on his out-dated two-stroke
About 10 years ago, Chrysler's Joe Goulart was singing the praises of the two-stroke
engine as an automotive powerplant.
To meet the new federal EPA requirements, motor manufacturers are introducing four-stroke outboard engines, four-stroke personal watercraft, and cleaner versions of the direct-injection two-stroke
. These new two-strokes
still release more HCs than four-strokes, but like their dirtier carbureted brothers, they are lighter, faster, and less expensive than four-strokes.
VALENTINO ROSSI insists he will underline his status as the world's Moto GP supremo despite switching from an all-Bconquering 500cc two-stroke
, four cylinder machine to a four-stroke twin Honda newcomer for this year's 16-round series.
US engine manufacturers -- most of whom decided to build somewhat cleaner two-strokes
instead of ultra-low emissions four-strokes -- furiously opposed our eco-label program, as well as our proposal to require catalytic converters on jet skis by 2008.
outboard engines and jetski engines, which run on a mixture of oil and gasoline, have also come under fire.
The merger brought together the combined experiences and design ideas of the two companies, which recently resulted in the introduction of a two-stroke
gasoline engine targeted at a variety of applications.
Using California's Proposition 65, which forbids the discharge of carcinogenic chemicals into drinking water, Bluewater has filed suits against 30 outboard manufacturers, "personal-watercraft" manufacturers, and outboard rental concessionaires, demanding that they stop selling or renting conventional two-strokes
became four -stroke side-valves,and the complication factor went up to the tune of one camshaft plus two valves per cylinder.
Despite the advances that have been made, there is much durability and reliability testing to be done before two-strokes
can be put on the market.