Engine not firing

bigge31566

Seaman Apprentice
Joined
Jun 20, 2009
Messages
41
I have a 1999 Johnson 90 hp model J90PLEEB and tried cranking boat today but its not firing on any cylinders, ran good last time tried in yard
 

rothfm

Ensign
Joined
Sep 26, 2006
Messages
913
Yes, Laynard would kill spark for sure. Thats on OIS ignition, Not too familiar-others can chime in.

But Fuel/Spark/Compression.....You can check fuel delivery, check spark on each with a tester or a helper, and always good to get compresson readings.

Every one of those motors I've worked on have warped bowls. Wouldnt explain it totally not starting, but would idle/run crapy-Just mentioning.

see what others say about the Optical iginition and checking it. Good luck.
 
Top