Hard starting

Scott06

Admiral
Joined
Apr 20, 2014
Messages
6,730
Oh I didn’t know that quicksilver was the same as merc.
Quicksilver is a parallel line same parts essentially same part numbers, but allows them to be sold outside the mercury dealer network. They are oem parts
 

ericcarr

Petty Officer 1st Class
Joined
Jul 27, 2009
Messages
291
Factory shows 72 / 84 or 73 / 73 with 6.5 power valve for 750 cfm

Looks like they have been changed, most likely for similar issues. The factory setup is to get it within range. Changing jets by +/- 4 usually means there is something else going on.

Yours being black might be the power valve is damaged, incorrect float height and carb is flooding. Incorrect timing would lead to pour performance, but it should still start.

Not having a choke would be bad for cold starts but should be fine once warmed up
I just got around to taking my power valve out, it says it is a 3.5
 
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