1985 Mercury 110 9.8 hp can't start

[Too Cycled]

Trying to start an '85 9.8hp.

I know it will be a bit of a check list but I can at least eliminate some possibilities.

Compression is 115 psi in both cylinders.

Motor did run few years ago.

I am using good (new) fuel. Carb has been cleaned and blown out well.

Installed new wires.

I get bright blue spark consistently on both plugs. Plugs are brand new.

I am not getting it to pop or sputter with choke in or out
After several pulls, gas will leak out of front of carb. (when choke is opened).

I am NOT finding the plugs flooded when I remove them after several tries at starting ... so although gas is getting through the carb, it doesn't seem to get into the cylinders.

Any input/ help would be appreciated.

Thanks
Kelly

 

[Too Cycled]

Re: 1985 Mercury 110 9.8 hp can't start

Update:

Messed around with the wiring last night and found the likely cause of the intermitant spark on one plug.
The black wire/ white stripe leading to the coil on the left had fractured insulation. Upon further inspection, the insulation crumbled in my fingers as well as the wire itself. From the forum I have learned that they used aluminum wire rather then copper which oxidizes.

I am hoping I can get a connector on the remains of this lead and extend it to the coil.

Can I use copper for the extension or do I need to stay with aluminum? Impedance issues perhaps?

Can anyone tell me the proper wire color pattern leading to the two coils from the perspective of the rear of the motor?

Switch box model - 339 5287A3
At the moment, it is as follows:
Left coil - Top lead: Green with white stripe
Left Coil - Bottom: Black with white stripe
Right Top: Green
Right Bottom: Green With White Stripe

Kelly

 

[bktheking]

Re: 1985 Mercury 110 9.8 hp can't start

Copper will work fine, get high quality solderless crimp connectors and crimp the wires together then seal with heat shrink.

Not sure about the wiring.