My SVX is being troublesome of late. I have just had it serviced in
the hopes that replacing the plugs etc. would cure the lack of power problem that I have been experiencing, but it hasn't. Symptoms are that it is difficult to start, often requiring a couple of pumps on the throttle before it will fire, then when it's cold it does not rev freely, but runs lumpily and has little or no power. When it does warm up, it appears to run reasonably smoothly, but still lacks power occasionally. When power does arrive, it comes in a big burst, and make the car difficult to drive. No 'check engine' lights. There are frequently clouds of white 'smoke' coming out of the exhaust.