have an 03 merc 125 2+2 on 20ft dual console.
boat is only getting up to about 4500rpms / 30mph. 16p prop. When checking spark on trailer, all 4 cyls have good spark. I put new plugs in and ran it for a while up and down canal . Pulled plugs and bottom cyl plug looked brand new. No color, no fuel on it. Ran it again, got up in rpms , sprayed some fuel down that carb throat and no change in speed or rpms. So confused as to whether or not it's a spark or fuel issue
Motor has over 120 psi in all 4cyls
carbs are freshly rebuilt and 100% clear
new plug wires and boots
reeds inspected and all good
boat is only getting up to about 4500rpms / 30mph. 16p prop. When checking spark on trailer, all 4 cyls have good spark. I put new plugs in and ran it for a while up and down canal . Pulled plugs and bottom cyl plug looked brand new. No color, no fuel on it. Ran it again, got up in rpms , sprayed some fuel down that carb throat and no change in speed or rpms. So confused as to whether or not it's a spark or fuel issue
Motor has over 120 psi in all 4cyls
carbs are freshly rebuilt and 100% clear
new plug wires and boots
reeds inspected and all good