need help!!!!!

[seantim]

1976 75hp rude will not even begin to start to plane seems to have good spark on all cyl while at idle carbs have been rebuilt link and sync done comp is #1 120 #2 120 #3 118 no fuel problems when trying to bring rpms up sounds like its running on 2 cyl and just boggs down i took head off and piston walls looks great put new head gasket on started @4ft lbs and went to 16 ft lbs done this with the manual sequence again at idle every plug wire you pull off about stalls the motor tip the key and it starts on muffs come on guys help me or i will break down and trade my black max 150 to a small engine for my bass boat!!!!!!!oh yea moved 4 ftlbs at a time when torquing the head

 

[Solittle]

Re: need help!!!!!

I can't read a sentence that long.

 

[BoatBuoy]

Re: need help!!!!!

What plugs? Gap?

 

[Silvertip]

Re: need help!!!!!

How did you arrive at the conclusion there are no fuel problems?

 

[seantim]

Re: need help!!!!!

ok plugs are new ql77 gap @40 the no fuel problem is that a spray bottle full of 2 cycle gas sprayed in carbs only choked it down and if my sentence is too long tell me what you need to know and i will do my best to type that i just tried to cover most of what i done

 

[seantim]

Re: need help!!!!!

could this be coils,or the stator or what?

 

[Goodoleboy]

Re: need help!!!!!

Spark has got to jump at least 7/16 gad. Buy or make spark tester.<br /><br />Just because spark looks good dont mean much. Its got to jump wide gap, when in open air.<br /><br />The atmespher is so dence in side a cylinder that it takes a strong blue spark to jump .040.<br /><br />When and if it passes the spark test. Then Id make sure that carbs are clean.<br /><br />Remove all welch plugs, clean with carb cleaner and clear all passages with compressed air.<br /><br />Even if you have good idel, your still on low speed jets. High speed jets could be still cloged and will not let motor reach WOT.<br /><br />Make sure float levels are correct to manual spec. Check close for air leaks in fuel lines.<br /><br />Good luck!

 

[OBJ]

Re: need help!!!!!

Think I gotta agree with Lee here.....make sure the spark is strong. The tip is that every plug wire you pull nearly stalls the engine. If you pull a plug wire on an engine that has good spark to all cylinders, the engine would get rough but should stay running.