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Check those filters!! I can't tell you how many folks I know have had engine problems this season and the source was all fuel and fuel filter issues.
I would change the filter every 50 hours to feel comfortable. That is a lot, and they should last a lot longer but one batch of funky fuel and your hosed. Nothing like getting stuck in an ugly spot in a raging current or sea and have your engine start gagging.
Just yesterday a friend called saying he thinks his engine crapped out it sounded terrible and had no power in gear and he was thinking about repowering. He was moaning after replacing the prop and talking to the (suzuki) mechanic who said it didn't sound good and he could get to it in a few days. I asked him if it stalled or coughed at idle? and he said yes and it never does that...I said take off all the filters starting at the racor and dump it out and look inside. Later that day I got a phone call from a happy fishermen...it was full of water and gunk and he "fixed" the problem for less then 100 bucks. My advice was
A) change the filter every 50 hours
B) buy MARINE gas at a decent place, stay away from discount fuel places. (they get discount fuel because they purchase the dregs from the bardge after all the premium stations buy the stuff off the top)
I learned the hard way. Buy quality and use what the manufacture says to for additives. (ringfree, drygas or whatever)
The Yamaha dealer actually took off my racor and put on a Yamaha filter for warrenty issues (similar specs but they don't have a drain port) I was PO'ed but they said if your engine blows and you don't have this filter on they will balk at warrenty repair.
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