I just measured my trip today and a little under half a tank when I got back.
We traveled 36 Nautical miles or 42 actual miles. I wouldnt be certain on these numbers as I was just clicking on google maps to measure, we run wide open most the way.
Read on another forum that somebody got like 55 miles on the open ocean.
I know the guys with Supercharged monsters who get like 50 minutes out of a 12-15 gallon tank are concerned about WOT. But is WOT throttle range really a realistic distance to measure our Spark's range?
I really can't see holding your throttle wide open at 40mph+ for an extended period. Maybe if our max speed was 10mph sure but I think a more realistic measure would be cruising range.
90hp is 2.5 gph. Max speed is 50mph. 8 gallons divided by 2.5 is 3.2 hours or 150 miles dead straight flat glass water wot. Of course I cant see anyone going straight anywhere on pwc. For every mile as the crow flies I go Id say I ride 4 or 5 because Im going in circles and jumping left and right spins with big sweeping turns the whole way. But as far as fuel goes you can easily go 3 hours on a tank and Id estimate 4 to 5 would be the norm. We ride pretty much the same route when we go on our local waterway and my old polaris would burn 10 gallons of fuel and Id be on reserve to get back where my 109hp spark has been using 3.5 gallons to do the exact same trip. I am worn out and tired long before the fuel tank is.
Yesterday going by the hour meter to the minute and total fuel use I pushed my vtech in sport mode as hard as I possibly could and it used 2.3 gph. My wife ran her HO at a leisurely pace in touring mode and hers sipped 1.25 gph. Thats pretty close to what the factory advertised .
Here is my data
Mine 1 hour 28 minutes burned 3.481 gallons
Hers 1 hours 30 minutes burned 1.876 gallons
water conditions were very mild with glass on the rivers.
So that would give a max fuel tank run time of 3.5 to 6.4 hours for our situation. Thats quite a variance depending on hard you push it.
Hopefully some more will post up data.
I'm burning about 2 an hour for average usage on salt water. I think that's great.talking to a friend with a 65 foot Viking who burns 120 gallons an hour full open and 65 cruising.no complaints about 2.
That really makes life more enjoyable for us considering we were averaging over $1000 a month just in fuel to keep our old 2 strokes on the water. Now its almost laughable to top off both machines for $20 an evening ride instead of the usual $50 to $75.