Search results

Perhaps a Mercruiser with the 470 or similar.--Charging system under flywheel.

So it sounds like the previous owner had issues.----Then put that horn in the control box out of service.-----Do the compression test before spending any more beer tokens on the motor.-----The cylinder head needs to come off to replace the diverters..---Just 10 bolts using a 1/2" socket I think.

How about pictures with compound cleaned off.

Easy to identify if you post a picture.----Perhaps on a new thread !

Likely a good idea to pull it out for inspection / leak test.

The shift switch cuts spark to 3 cylinders during the shifting.---So remove spark plugs.------So put control in forward.---Turn key on.----Crank motor over.----Do you have spark ( 3/8" gap ) on all leads ?

Sorry , I do not know what " super weak spark " is.----I do not know what " fat spark " is either.----Use a proper test device.----Does spark jump a gap of 3/8" on all leads ----What size gap can it jump on each lead ?

Have to ask.-----The high speed jet ( orifice plug ) is clean ?---An item found screwed into the bottom of the float bowl.

Water from the tell tale does not go through the block.---So it is always cool.----Water goes through the thermostats last.----There are 4 ( 2 per side ) water diverters in the water jackets.---Perhaps these are out of place and blocking water flow.-----Water does NOT go through these...

Many boats have wiring that looks like a bowl of spaghetti.

Test rectifier / voltage regulator.----Test ignition key kill circuit.----Test stator windings.---Test sensor coils ( no need to remove flywheel ) as well.----If good replace power pack.

Agreed with above post.----Make sure throttle plate is opening at the correct time.----If it opens too early the motor will often stall.

Get it cheap ( less than $500 ) and rebuild it.

Using strong solvents may not be a good idea.----If you have sparks for any reason it might go " woosh " around you.

Hurry to your local friendly boat shop.---Ask them to pull the flywheel off.----It will save you / money / more damage / aggravation !

Sounds like the flywheel key might be sheared.----With the factory puller the flywheels usually pop off fairly easy.----Soaking and heat are not required at all.

I do not believe you have what I call " strong spark "---Or possibly a reed valve was damaged by water ( crankcase compression ) during the " event " on the river.--So remove flywheel inspect coil.----Clean breaker points.-----If spark can not jump a gap of 1/4" you have NO SPARK in my...

Many boats were marketed with Force engines.------Entry level pricing to " newbies " so to speak.-----New owners / rookies did not take care of them.

Had 4 bucket seats to be done.----Was quoted $700 / $400 and $250 each.-----Had them done at $250 each as a fill in job for the shop.----Took nearly 2 years and not a perfect job , but I am happy with it.

How are you testing spark?----Do you have a test device with gaps you can set at 3/8" ?----Have you checked starter motor / battery cables / load tested battery.