REFLECTOR: Fw: Champion Plugs/Timing

[HYTEC45 at aol.com]

In a message dated 10/25/2006 6:12:19 A.M. Pacific Standard Time,  
romott at roadrunner.com writes:

Steve,  my Jeff Rose which has the pick up mounted in the left mag hole, is
set at  zero degrees.  There is a small hole in the face of the pick  up
housing.  A 3/32 pin (like the pull pin in a small pop rivet) is  inserted
until the holes line up - when the crank is at TDC for cylinder  #1.

I believe the Jeff Rose flywheel mounted pick ups are set at zero  degrees 
too.

Ronnie


True, the installation of the pick up is installed at zero, however, Steve  
is still right.  Unlike a magneto, the electronic unit has the 25' BTDC  built 
in.  This makes installation easy for most by just setting at  TDC.  Don't 
worry about which piston is TDC.  A magneto does not have  the advance built in 
so it is installed at the BTDC desired.  If  running 10-1 pistons, this advance 
should be reduced to 20' BTDC.  With a  electronic unit, this means usually 
installing it at 5' PAST TDC.   Check your particular unit's instructions to 
see what advance is built in, and  set accordingly.  The electronic timing is 
checked with a strobe  light and the manifold pressure disconnected from the 
unit.  This  defaults the unit to it's internally set (no advance) timing.
 
Use auto plugs on the electronic unit.  Much better than 50 year old  
technology, and cheaper too.  Don't clean them (auto) just pitch  them.
 
TEC
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