105hp bogs down at top speed

[marshallclan]

My 105 seems to bog down at top speed. I bought this boat last year and ran it a few times. It ran great all year and I just got it out last week and seems to bog down after about a hundred yards or so.
I changed all the hoses and the ball. I rebuilt the pump diaphram and gaskets.
At first start this year I ran some real bad fuel,,, mostly water into it.. Bad I know but an honest mistake.
Should I rebuild the carbs? Is there something else I should be looking at?
All or any help would be great. My boat is our solace and would hate to have to spend money were I dont have to.

 

[john from md]

Re: 105hp bogs down at top speed

Try to do a thorough decarb of the engine before you do anything. Also, buy some Deep Creep and fill up the carb float bowls through the bowl vent. Sometimes this works, sometimes it doesn't. Decarbing can't help but make it run better though.

John