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Hi everyone my name is Lou im new here my dad has a yamaha 150 etxh v6
cylinder 2 and cylinder 6 have no power all 6 cylinders have about 120 psi 6 new spark plugs each coil has spark per cylinder including cyl 2 and cyl 6 and the sparkplugs all look the same color this motor ran great until it ran out of fuel
then it ran good for like 3 hours after we put fuel in then we drove back to the dock and when we drove to dock in no wake zone we noticed it running rough
and its the top and bottom cylinders on the fuel pumps side. does cyl 2 and cyl 6 run the fuel pumps ? could it be weak coils i plan on swapping coils to see if problem changes to another cyl. and i plan to remove air box and hit it with carb spray see if motor picks up. also when this motor is started cold it smokes bad is that caused by bad fuel pumps? thanks for your time
Lou
cylinder 2 and cylinder 6 have no power all 6 cylinders have about 120 psi 6 new spark plugs each coil has spark per cylinder including cyl 2 and cyl 6 and the sparkplugs all look the same color this motor ran great until it ran out of fuel
then it ran good for like 3 hours after we put fuel in then we drove back to the dock and when we drove to dock in no wake zone we noticed it running rough
and its the top and bottom cylinders on the fuel pumps side. does cyl 2 and cyl 6 run the fuel pumps ? could it be weak coils i plan on swapping coils to see if problem changes to another cyl. and i plan to remove air box and hit it with carb spray see if motor picks up. also when this motor is started cold it smokes bad is that caused by bad fuel pumps? thanks for your time
Lou
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