I have a sailboat (Catalina 27) with a small enclosed lazarette compartment forward of the transom that the auxiliary outboard mounts in. I have a 2000 Johnson 15HP LS 2-stroke in there now, and it barely fit, and only with some minor surgery to the compartment. When I bought the Johnson in 2000, there was no way any 4-stroke would fit. In the future, in California, when I need to replace the Johnson, Ill have to buy a 4-stroke due to the Calif. air pollution laws. Anybody have a suggestion as to what manufacturers 4-stroke products (w/longshaft, electric start) might have a powerhead no larger than the Johnson 15 2-stroke? I need at least a 9.9 for sufficient power, and light weight is also preferable.