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ID 9.9 Mercury 110 and troubleshoot

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Mikey162

New member
Hey guys, im trying to troubleshoot this Motor (not starting) and i can't find any info on it.

im looking for any helpful info such as year, what spark plugs it uses, what gas mixture to use or any tips you may have!

so far i have tested compression (110psi) and tried to test spark but had no success, which brings me to the main reason i am asking for help, I don't know which spark plugs to buy!

serial number is 7000257

I will include photos, thanks for any help!
 

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Canadian Serial indicating a latter half of 1972 production date.

For on-line part look up a US serial (production number) of 3263263 will give you "mechanically" the same motor (you don't often see Canuck serials listed in the on-line parts lists).

Surprisingly there is still many parts still available for this motor. However, if you have a significant ignition issue causing lack of spark you could spend upwards of 500 bucks (coils, condensor ect) and have a motor worth 100 bucks when you are all done.

A Seloc's manual (#1404) 1965-89 1&2 cylinder Mercury Outboards might be quite helpful.
 
Awesome! great help! seems as though the kill switch was faulty and was causing intermittent spark issues, i have it running now, just need to put the gearbox assembly back together and get it in the water!
 
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