ORIGINAL: altavillan
Three types I've seen.
3W uses a two magnet system. The guy that sells you the engine won't tell you how to time it though LOL.
NP CH ignition ignores the first magnet and outlasts the 3W ignition anyway.
ZDZ and others use a type that you set about 6mm advanced and somehow remembers when to spark and get advance on the next revolution.
CH type you set at 28 to 30 degrees and electronicaly retards spark when rpm's reach below about 3500.
So you can kinda tell what type you have by it's placement at TDC. If it's about 30 degrees it's a retarder. If it's about 6mm it's a rememberer.
Got a question for you.
If the C & H retards the timing below 3500 how can you set the timing at 28-30 by slowly turning the prop and watching for the spark. Wouldn't the spark be retarded at this slow rpm thus showing you the retarded degrees and not the advanced degrees ? Does my question make sense?
