I. Introduction: Rome Before the Fall [click here for a brief overview of Roman history] After nearly half a millennium of rule, the Romans finally lost their grip on Europe in the fifth century (the 400's CE).
The 1989 SeaDoo SP featured a two-stroke, two-cylinder 587 engine with rotary-valve induction and a water-cooled exhaust system. The 587 jet ski used regular unleaded gas and SeaDoo oil injection. The bore and stroke was 3 inches by 2.5 inches and the compression ratio was 5.9 to 1.
Received: 0 Given: 0. SeaDoo began using the 4 Stroke 4-Tec engine in the boat line-up in 2003 with the 15 foot Sportster 4-Tec. Then in 2004 they brought out the 20 foot Speedster 200 with twin 4-Tecs. Currently all SeaDoo units have phased out the Mercury and Rotax 2 strokes, and use nothing but the Rotax 4-Tecs.