[jms]

Dip stick is old school and effective.
Installing a fuel gauge is a possibility.
Aluminum tank may be as small as 12 gallons.


Fuel consumption meters are available, not cheap.

dip stick : only gonna work if there's a straight run from the fill cap to the tank's bottom

installing a fuel guage-if there's not one installed/this could be a big problem.small aluminum tanks are usually 1/8th" or in some cases -3/16",the area where the sender is located,this area is usually backed up by an additional piece of material - 1/8" of material will not hold threads very well...

flo scan units are about the best/most accurate flow meters...


that engine - 70hp 2 stroke-use the 10% rule - meaning,10% is 7 - that engine will burn in the area of [email protected] throttle - approx half that number @ cruise - 3-4gph...