spark or fuel problem

[Bill Stock]

1990 40 johnson-new power pak,plugs,all new fuel lines,fuel pump,new primer sol,had carbs rebuilt.Motor starts great,idle about650rpm's.When motor cold to warm up no miss,5-10 minutes when motor warms up starts missing at 1/2 speed to full. when cold can take it to full speed no miss. Leaned carbs still miss,plugs wet. How can I tell which carb or cylinder is problem or where to start looking? ANY suggestion would help Bill

 

[OBJ]

Re: spark or fuel problem

Bill....just for grins....try another set of spark plugs.

 

[Bill Stock]

Re: spark or fuel problem

Will try new plugs. Other thing is even though I put new bulb and fuel line from tank to motor, bulb never gets hard when pumping,could it be starving for gas or vent problem? Thanks slow in the water Bill and ice on the way!

 

[Bill Stock]

Re: spark or fuel problem

Found problem once I straightened out wiring,never had gauges or alarm horn. When warmed up alarm went off which sent me to thermostat which was bad. Replaced now runs great, it was over heating!