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Do a compression test on thee motor.----Post the numbers.

Running with VRO in service or 50:1 mix ??----Any scoring is a big red flag.

Switched plug wires ??

The sheave on the recoil is elliptical.-----The rope length must the correct to line up the arrows.

Year and model # of motor ?----Just 1 carburetor or 3?------What boat and what pitch is the prop.-----Is the boat waterlogged ?----Fuel pump diaphragm ruptured ?

New starter from where ?---Factory or something else ?----Checked the " start in neutral only switch " in control box?-----Seems to me this should be easy to figure out.

Bad sparkplug ?

Hurry----Run to your local , friendly boat shop for help.

Any pictures of the " looked decent " cylinder walls?-----Post results of a compression test after repairs.

Problem with battery cables , starter solenoid. loose connections.---And have that battery load tested where you bought it.

It is a 1988 or older !!---In fact I think it is an 86 model.----An aftermarket is your best bet !!

You are running on 2 of 3 cylinders.----#1 has an issue.-----No spark.----Or no fuel.----Or too much fuel.-----Or no crankcase compression..----Should be easy to figure out.-----Might be a broken reed valve or some seagull feather holding a reed valve open.----Could be a hole in the block too.

The bulb does NOT need to be hard when motor has started.-----What part # pump did you get ?-----And is the pump mounted directly over the pulse port on the intake manifold ?----That would just beside the starter motor.

Did you read post #3 ??----I say your motor is running on only 2 of 3 cylinders.----It it easy to test and find out why.----If you keep running it with a plugged carburetor you may destroy the motor beyond economical repair.

Outboard pistons are tapered.------Even a new piston is smaller at the ring lands then at the skirt.------They do seem loose to a novice.----Make the needed repairs.---Run it and hope for the best.-----Don't forget to replace the water diverters.

Does spark jump a gap of 3/8" or better on each lead ??

Easier to install a GPS drive speedometer .----No hoses and likely more accurate.

Make sure battery , starter motor and battery cables are in good condition.----Easy to check and costs little money.-----And a review of the starting procedure is also in order.

If you can find a shop that still does this.----Yes , they use a hefty hydraulic press to remove / install a new hub.----But today the offshore factories can stock dealer shelves with props.----Often for less than what it costs to refurbish one locally.

The 2 stroke outboard engine is unique.----It operates / boat floats in a supply of cooling water..-----Unlike an automotive engine that carries a sealed water supply INSIDE the block. ----Folks do not maintain / replace the impeller on a regular basis !-----Results in lack of cooling.-----If...