View Single Post
Old 11-25-2021, 06:33 AM   #26
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 22,553
The usual of Thumb on 71 series is 20-30 HP per cylinder for long life.

The best operating range is 1200-1800 RPM


If starting one that has been out of service for 6+months be SURE to remove the cover and observe that all cylinder injectors are free to move.

If not a "stuck rack" (from one injector) could cause very high RPM with only cutting off the fuel or air to stop it.


The WWII Grey Marine instruction book is the best tutorial for 71 series and worth the purchase price.
FF is offline   Reply With Quote