Hi guys.<br />I have a 1956 Johnson sea horse 35. Last year the motor ran great but this year on our fist couple fo times out there seems to be no top end to the motor. It starts fine and runs really well. But when you give here full throttle it feels like its only getting the power of half throttle.<br /><br />I checked the plugs and I get spark on the top plug on the motor but the bottom one doesn't seem to show any spark. I switched the plugs around and even put new plugs in with no luck.<br /><br />My father in law thinks that the bottom plug is only for the top end. I don't think this could be true.<br /><br />Do I just need to check the points or maybe clean the carb?<br /><br />What would be a good starting point?<br /><br />Sorry for the long post.<br />Thanks,<br />Matt