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Old 04-14-2008 | 09:13 AM
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tkg
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From: Riverton, WY
Default RE: CH ignition versus Chinese version.

ORIGINAL: dinoslmn

Hi,
A question for CH .
I have a old CH ignition which was used with OS 91 4T (methanol).
I have a new project and want to use it with a YS110 4T methanol.
Form my memory YS don''''t like much advance. In your early doc. (15 ears ago) was wright ~20-24 deg max advance for mechanical CDI and idle point fire on TDC.
How can i use your External Syncro Spark module ? If i will put the magnet 20 deg Btdc where will be retarded puint ?

2. the unipolar hall sensor is like an On/Off with a hysyeresis curve between on and off stade.
This time is calculated for initial retard and afrer this when the engine fire the time calculated is between two consecutive "ON" ?
1The Synco spark has 26 degrees of timing movement built in. Static set to 30 degBDTC means 4 deg BDTC startup timing. 20 Deg BDTC means 6 deg ATDC startup.
Order soon we may have a few 20 deg chips left
2 Close enough, the hall switch produce a square wave, other wise thats right