i have a 1997 Johnson ficht 175. It was running good all day the the last time I ran it had low rpms and didn’t plane so I shut it off. Then I tried to start it and it wouldn’t crank so I took off the starter and it was bad. I replaced the starter today and two spark plugs. The starter turned the flywheel and the flywheel was spinning, some smoke came out of the pro, but there it wouldn’t fire up all the way. The primer bulb is full and hard. I don’t know what to do next. Someone said the power pack or the impeller. Help