looking at a 2005 21 i

[treelog]

Iam considering buying a 05 21 i 340 hp ,samson tower i will ski wakeboard and tube and cruise, iam afraid of fuel efficiency can anyone help

[Matt Garcia]

Your fuel effiencey should be between 4-8 gallons an hour. A lot of the members on here recommend using a fuel flow meter.

[jeffro]

if you put a lot of ballast for wakeboarding in your 21i like i do, then yes, it will drink gas like it's going out of style...

however, when she has no ballast in her, the 340 hp motor will feel effortless and very responsive. no probs for skiing. and the fuel consumption will be much less.