Horrible day out fishing....Problem Force 125

[ErvCam]

https://youtu.be/nd00o0_cMb0

https://youtu.be/6brSzLy1PI0

first video was when it first fired up I think maybe air in the lines was causing a slight misfire? But once we opened her up it miss fired a couple of times and then ran great. However my mph doesn’t work and neither does my temp gauge. The mph fin on the back is very stiff and chipped off. The temp gauge shoots to the top when I ground it so I’m assuming the sender is bad? Also my linkage I think definitely needs to be adjusted to get throttle in reverse I have to move the throttle all the way back and down. But for now I’m happy just to get out there and fish

 

[jerryjerry05]

The sender for the temp: Hook an ohms meter to it and put it in a pot of cold water on the stove.
Then turn up the heat and see if the meter reacts??

The speedo pick up or pitot tube: sometimes the end gets broken off or it's not in the water straight down.
Unhook the hose and blow a bit of compressed air into the hose.
It should make the needle move when the air pressure goes up???

Some where in the first few posts is instructions for adjusting the linkage.

 

[ErvCam]

Awesome thank you for all your help

 

[ErvCam]

I noticed yesterday that my rear drains were loose and I could probably easily pull them out from inside the boat. Any recommendations for replacement units?

 

[Redbarron%%]

Pll them out clean up dry out and reinstall with a good marine sealant

 

[jerryjerry05]

Usually pulling them out breaks them.
They sell new at WestMarine or just about any boat store.
They come in different sizes so make sure you get the right ones.
Clean the area real good and make sure the wood is dry.
Sometimes letting it set over the winter will dry them real good.

They are a plastic that just pushes together.
You can make up a bolt/washer/ nut that draws them up tight.
Lots of silicone.

Leave the brass ones to the guy with the right tool

 

[ErvCam]

Will do thank you guys for the help

 

[ErvCam]

Well got on the water today trolling speed was a bit too fast but nothing my 7.5 hp Honda 4 stroke won’t fix. However I think I might have used too big of fuel lines and will need to swap over closer to original size. When full throttle on plane it runs dry of fuel and the primer bulb goes soft. Then I have to pump it fire it back up and I can keep going. My tach was also sporadically working so in the near future I will be re doing all of the wiring making sure none of this crap happens lol

 

[Nordin]

Ervcam I do not think you have to large fuel lines.
Check the fuel pump and change the diaphragm in the pump.
The engine runs out of fuel because the fuel pump can not deliver enough of fuel.

 

[jerryjerry05]

The balls only job is to draw fuel from the tank.
It has a one way valve, the valve can go bad too.
I had 3 bad, brand new out of the box.

Once it firms up, that shows the bowls are full and the system is ready for starting.
Then the ball does go soft after starting.
If it goes flat?? then the tank vent is blocked.
Built in tank? the vent hose can get insects in and they build nests and block off the air.

Like Nordin suggested, the pump can be bad.
Or the inline connectors can be bad??
They have a rubber seal and it rots and breaks the seal, allowing it to suck air.

If it's the original Chrysler fittings? They are great at leaking air.

Tacho problems: WD-40 on the connections, WD in the key switch, screwdriver and WD:
loosen the screws holding the wires on the busbar and retighten

 

[ErvCam]

I wouldn't necessarily say it goes flat but to when I went to pump it, it definitely felt flat and sounded like fuel was trying to slush in. I could definitely hear it. The fuel lines from the tank to the water separator to the primer bulb to the fuel pump to the carbs are all brand new. The pump diaphragm and gasket are new and I also installed that particle filter before the carbs.

I am not sure which inline connectors you are talking about

 

[ErvCam]

Also to note I had my buddy sit in the back and pump the primer bulb the boat ran much longer on plane full throttle until he couldn't keep up pumping it......

 

[racerone]

The fuel pump is operated by a positive pressure pulse and a slight negative pulse from the crankcase.------Perhaps there are issues with pulses that drive the pump.

 

[jerryjerry05]

The connectors anything in the fuel line like a quick disconnect?

Possible the squeezie is bad too?
If the pumps been removed? it's possible the gasket behind it isn't aligned right?

Usually if squeezing the ball help?? the pump or diaphragm is bad?
One little backfire, cough or sneeze can blow a hole in the diaphragm.
Low comp can cause the pump to operate poorly.

 

[ErvCam]

I added quick disconnects to the system. It didn’t have it before. Where are those inline connectors located?

Squeezie? I know I aligned the gasket properly on the fuel pump.

The boat didnt backfire on the water at all but when I brought it back to run fresh water through it it began backfiring like before. Smh this is becoming a real pain

 

[jerryjerry05]

Backfiring can be the air screws on the carbs are set wrong.
Where are they set now? Too far in causes a lean backfire condition.

Backfiring can be caused by port cover gasket sucking air.
Start the motor, spray starting fluid around the base of the carbs.
Then around the port covers and under the packs.
If it makes any change then your sucking air.
One tiny backfire can blow a gasket and suck air.

 

[ErvCam]

I’ll check again when I’m back this weekend. Where are those inline fittings located so I can check those too.

 

[jerryjerry05]

The inline fitting(if you have any)would be on the fuel line.
Some were used on the hose just before the fuel line went through the cowl.
The pic I posted shows the Force/Chrysler style.
They are also used where the remote tank and hose fit together.

Replace that white filter with a Fram G-2 G-3 G-12 Wally World
They are clear, much better.
It works best installed between the pump and carb.

 

[ErvCam]

I will update with as soon as im back in town and able to work on the boat. Ive been working out of state but next week I will be home all week

 

[ErvCam]

Jerry, I was thinking about removing the bowls and cleaning the jets. Should i order a carb rebuild kit or? Also any how to on rebuilding these carbs