Logo

1977 mercury 4hp 2 stroke starts but cuts out

robmcc85

New member
hi i need help my engine will start for 3 seconds then stops, can any one help do i need to alter carb? spark plugs ok fuel is clean... please help
 
hi there i have same problem (above thread) all my fuel is clean i cleaned the carb and evan has fuel (small amount) coming out of carb air intake mine will only start at wide open throttle and then die after 2-3seconds.. I know this isnt much help but your not the only one..

regards tom
 
There is a difference between both outboards, Tom's carb, http://www.crowleymarine.com/mercury-outboard/parts/456_5.cfm , going by the pic Tom posted, http://www.crowleymarine.com/mercury-outboard/parts/472_6.cfm , robmcc85's carb .
Clean the carb,blow out all the passage ways,seat the idle screw,back it out 1 1/2 turns,then keep backing it out 'til you get it to idle,then do as guyjg says on Tom's post
If buying parts,try and get them here on http://www.marineengine.com/ as it helps keep the forum up and running.
 
Last edited:
Back
Top