Small update:
Installed new high speed and low speed winding, along with a condenser, re-tested components and re-measured spark. Spark is still weak and will not fire. Re tested ignition coil packs, which seem to be out of spec. Ordered new ones and we will see if that fixes spark issues. Ive...
The condenser I tested was not to spec, as well as the high-speed winding. I've ordered new high and low-speed windings as well as a condenser. Hoping this cures my spark issues.
I think the coil packs are good.
Coil packs were tested, but I’m not sure if I did it correctly.
But I need to test the condenser and windings in the stator still! On the to do list for the coming days I’ll keep you updated.
Spark is definitely weak and will only jump about 1/16 to an 1/8th.
The choke works as intended and I can’t get the motor to start with it closed or open. I did as you recommended and put a little bit of mix fuel in the cylinder. 1 ml in each cylinder. I gave a good 10 or so pulls and there was not a bark or roar. In fact not even a whimper, sadly.
I checked...
I’ll keep this thread updated after I check my spark jumping capabilities.
I have a hunch it’s fuel related. After pulling and pulling and pulling I pulled the plugs to smell for fuel and there isn’t a strong smell of fuel. I took the carb apart last night and cleaned everything and made sure...
I will double check my spark today. But I believe it jumps that amount. They’re the flat face permagap style plugs.
I did not mess with the impeller in the water pump as the very first time I had it running it was spitting really strong.
If it is crankcase compression how do you check that?
Hey all,
I have a 1973 merc 7.5, I bought it and brought it home, after testing compression (100 psi in each cylinder) and checking spark and that I had fuel to the carb I tried starting it. Second pull it went!
Fast forward to the lake and the dang thing won’t run.
I’ve redone my ignition...