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Post by bultaco on Aug 14, 2013 17:11:39 GMT -8
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Post by bultaco on Aug 14, 2013 17:55:46 GMT -8
www.jetav8r.com/Vision/IgnitionFAQ.html#a7p21[WHAT IS “TCI”] Ignition systems have evolved over the years and been called many things: Solid State, Ignitors, Breakerless ,Pointless, Distributorless, etc... In outboards they're called "Powerpacks" or "Pulse packs". They go bad about every 5-10 years and also cost a boatload (excuse the pun). Yamaha calls this a "TCI" (Transistor Controlled Ignition) or "Ignitor" pack. In autos we call them "CDI" (Capacitive Discharge Ignition), ECU (Electronic ControlUnit), or DIS (Distributorless Ignition System). ["TCI" IS NOT "CDI"] I Repeat ..."TCI" is Not "CDI" The differences are subtle BUT you need to understand them or BAD things can happen To be exact TCI uses transistor switches to disconnect the coils. This causes a charged coil to collapse and "fire" the spark. This is known as "Kettering" or "Induction" effect. So, in the VISION the coils are powered up all the time except while "collapsing" into spark. The VISION coils are constantly powered up at 12+ volts but the "induction" energy stored in the coils secondary core is about 20,000volts
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