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techtalk:ref:engctl01 [2019/03/05 18:11]
ixl2relax [Aftermarket Ignitions]
techtalk:ref:engctl01 [2019/12/04 10:02]
ixl2relax [Thunder Heart - EI4250]
Line 75: Line 75:
 The Ultima unit triggers the coil primary circuit - either as a dual-fire system (one trigger) or a single-fire system (two trigger signals). It also has an output for a tachometer and also has an input for using a VOES to alter the spark timing during idle & cruising. The Ultima unit triggers the coil primary circuit - either as a dual-fire system (one trigger) or a single-fire system (two trigger signals). It also has an output for a tachometer and also has an input for using a VOES to alter the spark timing during idle & cruising.
  
-The install instructions are here:+The install instructions are here: Ultima 53-644 [[http://​www.ultimaproducts.com/​53-644_Ignition.pdf|Installation Instructions (2012 version)]]\\
  
-Ultima 53-644 [[http://​www.ultimaproducts.com/​53-644_Ignition.pdf|Installation Instructions (2012 version)]] 
 {{:​techtalk:​ref:​engctl:​ultima-53-644-ignition-module.jpg?​400|}}((Pics by Blowby & Static of the XLForum.net)) {{:​techtalk:​ref:​engctl:​ultima-53-644-ignition-module.jpg?​400|}}((Pics by Blowby & Static of the XLForum.net))
  
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 +===== Thunder Heart - EI4250 =====
 +
 +Install Manual - http://​thunder-heart.com/​Tech%20Service%20PDFs/​EI4250.pdf
 +
 +Updated image (sourced from the Thunder Heart Install Manual)\\
 +to show typical EVO Pre-1996 RH Control Wiring:\\
 +{{:​techtalk:​ref:​engctl:​thunderheart-ei4250-rh-pre96.jpg?​400|}}\\
 +Note that on most Sportsters, all the way up thru 2013, the wiring configuration
 +is the same as above (with only some minor wire color variations). The RED wire
 +(jumper) shown in the diagram between the RUN/STOP Switch and the Starter Button
 +is typically internal to the RH Switch Housing...
 +
 +
 +
 +
 +\\
 [[:​techtalk:​menu|{{:​techtalk:​gototechnicalmenu.jpg|}}]] [[:​techtalk:​menu|{{:​techtalk:​gototechnicalmenu.jpg|}}]]