1972 mercury 800 starts real hard

J

JOSEPH FRISSORA

Cadet
Joined
Aug 8, 2007
Messages
8
the carbs are rebuilt brand new spark plugs good gas, once its running it runs beautifully no problems idols fine runs perfect at high rpms but i can crank it over for five minutes and nothing..i need to spray the carbs with carb cleaner to start it. could it be the timing? i dont think it would be considering it runs so perfectly once its started and starts up real easy when warm. any ideas?
 
M

Moody Blue

Captain
Joined
May 24, 2004
Messages
3,136
Re: 1972 mercury 800 starts real hard

Be sure to pump the primer bulb till really firm.

Might want to consider rebuilding the fuel pump. Its inexpensive and simple to do.

I have a 1971 Merc 800 and its hard to start when cold as well but it always does start. Prime, prime, prime, choke choke choke and it should go. Almost impossible to flood these motors.
 
N

nubbie

Recruit
Joined
Sep 18, 2009
Messages
4
Re: 1972 mercury 800 starts real hard

yep same here..rebuilt my pump and works now.
 
You must log in or register to reply here.
Top