Power Pack ?

[messenger]

I have a 1997 90 spl ( E90TSLEUA ) starts hard , sometimes it idols fine other times it's slow , when I put it in gear to move I have to gun it a little to keep it running. as it's running at slow speeds it some times has a strong miss, but at wot it seems ok. Ive read a lot about bad power packs . I don't have a local mechanic that's worth a hoot , so just looking for some help . THANKS

[boats.net]

Use a timing light to see if misfiring on any cylinders, may need carbs removed and cleaned.