I HAVE A 40 HP JESL69R 40 HP JOHNSON 1969. WILL NOT PUMP WATER WITH THERSMOAT INSTALLED. WITH THERSMOAT OUT WILL PUMP JUST
FINE. HAVE INSTALLED NEW IMPELLER NO LUCK SAME SITUATION. ENGINE RUNS FINE, NEW PLUGS, COMPRESSION BOTH CYL. 102 TO 105.
WHAT WOULD BE MY NEXT STEP?? i DID INSTALL A...