Had my 150 Suzuki completely tuned this past spring. It's always been slow towarm up, but now even after it's warm it doesn't want to do a hole shot without catching it at just the right moment, usually bogs and stalls. I have a water separator, use hi test, gas additive (Sea Foam) and a gas stabilizer. Runs great when it catches right, but noticed after running back to take out for the day that even trying to get it on the trailer, motored bogged severely. Does this model require constant professional tune ups, or is there something I can do to keep the power up? Only has 250 hrs. on engine to date!