Why would you want a new CDI for your Ascot?
For those who need a little convincing, here is my own reasoning.
The original Shindengen CDI is a fine, reliable piece of equipment. It has operated reliably in your Ascot for thirty-two years. It is an "analog" design that uses capacitors for both energy storage and circuit control. Capacitors do not last forever. And before they go kaput entirely, their characteristics start to wander around. You never know what the advance curve may actually be the next time you go for a ride. And the same thoughts go for the transistors inside that little case too.
The original CDI may or may not last another umpteen years. But for my own piece of mind, I would preferably not be forced to depend on it 500 miles away from home. The CDI is the heart of the engine. If it goes *bink* and you have no spare, you'll be looking dolefully at one highly inoperative piece of equipment: that being your entire motorcycle.
Nearly as important is the inclusion of a rev-limiter in the CDI's design. This is very welcome (some would say essential) for engine management and safety. Way back in 1982, rev-limiters were somewhat available but not for the "everyday market." Nowadays, no modern engine management system would contemplate leaving out a rev-limiter: it wouldn't be tolerated.
From the Yahoo FT Ascot Users Group.
