1999 Mercury 200 EFI been sitting up 2 years

mhog

Recruit
Joined
Mar 27, 2017
Messages
3
If it cranks up, will only do so using throttle, once throttled down, will die & will not crank till sits for a while.
 

alldodge

Moderator
Staff member
Joined
Mar 8, 2009
Messages
40,581
Howdy

Suggest check compression first, and if within range, get into the fuel system
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,589
Check compression and spark, clean VST tank, replace filters,replace mechanical fuel pump diaphragm,drain main tank and fuel lines, pull injectors and send to Brucato to have cleaned and balanced.
 
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