Moparfanforever 854 #1 Posted July 20 Anyone ever hooked up a tachometer from a 520 to a Magnum 12 ?? Wanting to hook mine up if possible. Thanks!!! Share this post Link to post Share on other sites
Moparfanforever 854 #2 Posted July 20 Did a better search and looks like I need to run a power and ground to the gauge and a wire from the gray wire on the voltage regulator?? Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,070 #3 Posted July 20 The wire to the regulator goes to one of the AC leads. If it does not work use the other AC lead. Each AC lead has different functions. Share this post Link to post Share on other sites
Moparfanforever 854 #4 Posted July 20 @gwest_ca Thanks!!! Share this post Link to post Share on other sites
Handy Don 12,281 #5 Posted July 20 (edited) 2 hours ago, Moparfanforever said: Did a better search and looks like I need to run a power and ground to the gauge and a wire from the gray wire on the voltage regulator?? Yes. Remember that tachometers are basically counting electrical impulses and the WH models were spec’d for specific machines based on the number of wire coils in their engine’s stator. Do some research to confirm that the Kohler Magnum has the same number of coils in its stator as the Onan P220 to be sure you’ll get the correct reading. If they are different, the tach will still work but you’ll have to do the math to convert the displayed RPM to the actual RPM! Edited July 20 by Handy Don Share this post Link to post Share on other sites
Moparfanforever 854 #6 Posted July 20 @Handy Don Thank you!! Share this post Link to post Share on other sites
