I have a 1973 65hp evinrude triumph motor and cyl # 3 won't fire. I've changed the sparkplug, coil, powerpack, and stator. The cylinder has compression of a little over 100. Cyl #1 and 2 fire just fine. If I pull the #3 plug out while running there is no change, which isn't the case with the other two cylinders. I can't figure this out and I'm out of guesses of what it could be so i'm bringing my issue to the fine panel of experts. What could be wrong, and what should I test next? Also, could it be a something with the carb. Thanks for your help
__________________
"We are what we repeatedly do. Excellence is therefore not an act but a habit."
___ Aristotle
For some people there's therapy, the rest of us have boats
The trick is to narrow the problem down *before* spending any money on parts.
remove #3 spark plug, reattach it to boot, hold it against the engine block while somebody cranks the engine. use an insulated tool to avoid electroshock therapy. if you see a sharp blue spark, then rebuild your carburetors.
__________________ "It's all about the tools." -- myself
"Poets talk about 'spots of time,' but it is really fishermen who experience eternity compressed into a moment. No one can tell what a spot of time is until suddenly the whole world is a fish and the fish is gone. I shall remember that son of a b**** forever." -- N. Maclean
if you getting spark,fuel and compression,its possible your getting water into the cyl.via the exhust.the plates on the port side might be leaking water,when you remove the plug can you notice droplets of water,is the plug showing a rust color,.if you are getting spark,you can remove the carb cover,take some pre mixed fuel and spray it down the carb throat,if it fires ,you know you have a fuel prob,I would then suspect the carb,but,you could have a reed prob too,.check for spark first,if yes,try the throat trick,another thing you can do to check for water,carefully though,run the engine with the non firig plug out,put a piece of metal or glass close enough to the hole to see if water is appearing,but know that fuel may be present too,and has a good chance of firing if the dangling plug wire lites it off.just a couple old tricks,be careful
73 Evinrude Dead Cylinder
Linear Mode
