I purchased one of those inductive tach/hour meters from Amazon with a sender wire that wraps around the spark plug wire and I noticed that I get double the RPMs on the port side of the V4 as I do on the starboard side cylinders. For example, at idle I get 1080 on starboard and 2160 on the port side. Is that normal for a two stroke? 89 OMC 140hp.
This is the tach...
https://www.amazon.com/gp/product/B00YTXKKDQ/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
This is the tach...
https://www.amazon.com/gp/product/B00YTXKKDQ/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1