help with 50hp force

rayiow

Seaman
Joined
Jul 4, 2004
Messages
71
in the process of replacing wood in transom as original rotten so had to take engine off and noticed crystals and moisture coming out/off around the head gasket,it has been about 3 weeks since engine last run is this normal,i am in the uk so runs in salt water.engine use to start first time and tick over was spot on but now tends to cut out when put into gear(although i have noticed the tick over to be very low now)but if i take coweling off and manualy apply throttle via carb engine runs fine.also whilst taking the loom off(i do have a service manual)i noticed two extra wires with bullit connectors(wires are blue/white and green/white yet all others are single colours)in the loom but these are the only wires not in my manual diagram (engine model 507F9B-s/n1254)
 

Docdoc

Petty Officer 2nd Class
Joined
Mar 3, 2005
Messages
196
Re: help with 50hp force

Just a guess on my part, but you might need to replace the head gasket, or at the very least, check the torque on the head bolts. It's not normal to have moisture coming out around the gasket and the crystals are probably salt left after moisture is evaporated. If your head gasket is bad, it could cause the cutting out you describe. Check the head gasket bolt torques, then do a compression test. Also please post your year and model numbers.
 
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