125 help 3 small problems!!!

[succ33d]

Ok I have a force 125 not sure what year,The engine idles fine on it but it shifts hard into gear,At wot in gear the engine bogs down real bad and the boat has some trouble plaining off,It is on a 19 ft fibreglass boat.I just got the boat.Third this is i noticed within 40 min of riding and trying to figure this out it burned like 4 gallons of fuel.What could this be any help i would appriciate it,someone told me the carbs need to be adjusted but im not sure.Thanks

 

[succ33d]

Re: 125 help 3 small problems!!!

Someone else told me just to clean the carbs and that should correct it?

Also where the water spits out of the engine it is not a steady stream it is kind of spitting out then it stops for a second then it spits and stops,Could that be just a clog or more then likely is it an impellor issue?

 

[succ33d]

Re: 125 help 3 small problems!!!

Could the prop be the wrong pitch is that why the boat is having problems planeing off,Or could the prop be to big and this is causeing my headache beside the water issuse or impellor.

 

[roscoe]

Re: 125 help 3 small problems!!!

Get the engine running properly before making any prop changes.

Sounds like the impeller is in need of replacement. They don't shoot a steady stream, but should give a good consistent splatter.

Cleaning and rebuilding the carbs is a good idea, then properly adjust them.
Make sure that you do not mix any parts between the carbs.

That motor is capable of drinking 9-10 gallons of gas per hour.

 

[succ33d]

Re: 125 help 3 small problems!!!

Thanks the motor seems to run well,its just when trying to plane off it like hits a wall at idle or in neutral it is fine.It seems like it is not strong enough to spin the prop fast enough or push the boat onto plane.

 

[roscoe]

Re: 125 help 3 small problems!!!

Before doing any other work, check the compression on each cylinder.
You can get a gauge for about $30

 

[AlanR]

Re: 125 help 3 small problems!!!

What pitch prop do you have on it? its usaly stamped right on it. If your looking to plain real quick and get some decent speed get like a 16 pitch prop. I have a compistie 4 blade one on my party barge with a inline 6 merc (165 hp) and with 8 people and 2 tubes it still plains and does 38 mph

 

[roscoe]

Re: 125 help 3 small problems!!!

Just re-read your post. Does the boat ever actually get up on plane?

If not, your prop may have a spun hub.

You can have it rebuilt, or buy a new prop.
If the hub is spun, the rpm will rev real high but the boat will basically stop.